downloadbrowse[:.NaLe!T.:]'s NaLe!T\'s CrackMe No#1

Download NaLeTcrkMe.zip, 28 kb (password: crackmes.de)
Browse contents of NaLeTcrkMe.zip

First off don\'t give me that \"cr*pware\" things.
Yes, it\'s written in VB + P-Code, and all you need to do is find one serial.
Oh could someone rate it?!?

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: (Visual) Basic

Published: 08. Mar, 2005
Downloads: 1235

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Solutions

Solution by asik, published 09. mar, 2005; download (4 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowse.Net's ReverseMe

Download CE4_ReverseMe.zip, 18 kb (password: crackmes.de)
Browse contents of CE4_ReverseMe.zip

CE4 is a string encryption based on simple math. Reverse the algorithm and decrypt the string!
The software protection is 0.5/10, but the algorithm is hard to break!

Difficulty: 3 - Getting harder
Platform: Windows
Language: (Visual) Basic

Published: 15. Apr, 2013
Downloads: 184

Rating

Votes: 3
Crackme is quite bad.

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Discussion and comments

tinqnpro
21. Apr 2013
Visual Basic? -.-


downloadbrowse0x00786F72's xor_crackme#0

Download xor_crackme0.zip, 3 kb (password: crackmes.de)
Browse contents of xor_crackme0.zip

It's keygenme written on flat assembler and 30% of him code compound macroses:) The special of it is executing some code blocks in invented RISC-processor emulator.

Difficulty: 4 - Needs special knowledge
Platform: Windows
Language: Assembler

Published: 09. Dec, 2007
Downloads: 599

Rating

Votes: 4
Crackme is nothing special.

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Solutions

Solution by jE!, published 15. dec, 2007; download (16 kb), password: crackmes.de or browse.

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Discussion and comments

saitob
09. Dec 2007
What do you want us to do?
What is a valid solution?
0x00786F72
Author
09. Dec 2007
Oh, sorry...
Valid solution is serial or keygen. Send me it via personal mail.
0x00786F72
Author
12. Dec 2007
Somebody decompiled VM?:)
jE!
12. Dec 2007
while decoding,
A. you removed my post
B. i found 3 POSSIBLE ERRORs

1) VMproc1 @0040157A Zf flag set NOT by result
2) VMproc5 case1 @004015FE a=b XOR -1;
differs from case2 @0040162A; b= b XOR a;
3) VMproc14 @0040186A case1 not ended with RET.

i will post it also on forum, you love Dleting ye!?:)
jE!
12. Dec 2007
this faults not affects current execution of VM, so crackme update not needs.
0x00786F72
Author
13. Dec 2007
jE!, i don't delete nothing posts...
2) VMproc5 case1 @004015FE a=b XOR -1;
differs from case2 @0040162A; b= b XOR a;
Yes, case2 at addr 40162A works wrong. But other enumerating 'possible errors' is not errors;)
Several instruction yet can be wrong, cause i don't test all VM, only instruction what i used.


downloadbrowse0x00ach's Win32FTW

Download challenge.zip, 30 kb (password: crackmes.de)
Browse contents of challenge.zip

Zip password: "challenge"

The keygenme source code is in the "src.zip" file (password: serial for "S0urceC0de"), please do not leak it ;]

Hints:

InternalW
sysenter
debuggerz

Hope you'll enjoy ;]

Difficulty: 5 - Professional problem to solve
Platform: Windows
Language: C/C++

Published: 09. Sep, 2014
Downloads: 219

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Discussion and comments

barun
12. Sep 2014
You forgot to do some error checking. If calc.exe is not present on the system then it will hang for ever.
nadav12456
13. Sep 2014
hi dude, your obsfucation techniques are realy cool, but ain't machine-independent, e.g: it depneds on my ntdll.dll version... so which OS version have u used in your tests? app is crashing all time, when trying access to ntdll.dll+0x1000, which isn't mapped...
barun
14. Sep 2014
This won't run on a AMD processor. Hint: _KUSER_SHARED_DATA, sysenter, syscall
ShihabSoft
17. Sep 2014
the pasword is not working.Wasting time
ShihabSoft
17. Sep 2014
oops sorry.Not noted
barun
18. Sep 2014
Keygenning finished!

Name: S0urceC0de
Serial: TVqQAFBFAAByjsPV503hQwAA

To the author:
However note that this is NOT the password of src.zip.

I have found out that for the name "S0urceC0de" (or for any name) there are 65,536 possible serials all of which are valid.

However only one of them is the correct password for src.zip.

Extra Info: This keygenme will only work on Intel processor and only on non ASLR aware systems like Win XP.
0x00ach
Author
07. Oct 2014
@nadav12456 : I used a Win XP SP3 x86 version, I should parse the ntdll PE header to find the .text section :]
0x00ach
Author
13. Oct 2014
You're all right : it only works on win XP x86 Intel machines... If I got some free time, I'll update it with a AMD and ALSR aware code. (well, it's also part of the challenge... ... ... okay, sorry, my mistake :']).

I'll check the serial issue asap !
MacIn
19. Nov 2014
What version of ntdll.dll file you used? On my system (XPSP3) ntdll doesn't have anything reasonable at ndlll+1000+120F, which is used as initial EIP for worker thread. Or is it intentional? I'd like to find the solution very much, it is very interesting crackme indeed, but it seems impossible to complete it if program won't run. Don't want to leave it half-way done.
MacIn
19. Nov 2014
Also, trick with pow doesn't work on XP SP3. In SP2 there's a NOP before it, in SP3 - RETN.
MacIn
20. Nov 2014
Ok, I was wrong about pow, didn't notice off by one offset for this procedure. Also bogus command at 120f doesn't matter because of TF. So it works. Wonderful crackme, very interesting obfuscation technique.
But unfortunately I came to same results as barun described: keygened same key for S0urceC0de, and it doesn't match .zip password.
MASOUD
07. Apr 2015
@0x00ach: it seems you don't want to share source code with anyone cause its for long time ago and no news yet.
barun
07. Apr 2015
@Masoud The password of the zip is actually a simple modification of the serial. I have already completed keygenning this long ago, will try upload the solution soon.
MASOUD
12. Apr 2015
@barun: Thanks for your reply.
How did you find the correct password? did you brute-force it?
btw, Waiting for your solution.


download0xf001's oxfoo1me

Download oxfoo1m3.tgz, 1 kb

hack the password!

features: a anti-libbfd, anti-disassembling, anti-debugging, and a bit of obfuscation ;)

have a lot of fun ... ;}

0xf001

Difficulty: 5 - Professional problem to solve
Platform: Unix/linux etc.
Language: Assembler

Published: 20. Apr, 2007
Downloads: 525

Rating

Votes: 4
Crackme is nothing special.

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Solutions

Solution by stefanie, published 26. apr, 2007; download (4 kb), password: crackmes.de or browse.

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Discussion and comments

yo-mismo
10. Apr 2013
too hard for me, readed solution... Thank you! i solved it with help


downloadbrowse0xFADEDACE's BuiltIn SerialMe 1.0 ***FIXED***

Download ACE_SerialMe1.zip, 166 kb (password: crackmes.de)
Browse contents of ACE_SerialMe1.zip

Simple job: find the built-in serial.
Tough job: get past the built-in complications of the programming language.

Good luck!

Difficulty: 5 - Professional problem to solve
Platform: Windows
Language: Unspecified/other

Published: 26. Apr, 2005
Downloads: 883

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Solutions

Solution by TaGaDaPaF!, published 03. may, 2005; download (2 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowse1emuriez's crackme #6 by 1emuriez

Download lcm6.zip, 24 kb (password: crackmes.de)
Browse contents of lcm6.zip

It is easy enough crackme and you should not have problems with it.
P.S.: the Best crack is keygen :). Enjoy!

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: Borland Delphi

Published: 13. Sep, 2007
Downloads: 554

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Solutions

Solution by DigitalAcid, published 15. sep, 2007; download (26 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowse2sweeet's sweeet dreamz v2.0

Download 2sweeet2.zip, 193 kb (password: crackmes.de)
Browse contents of 2sweeet2.zip

password

Difficulty: 6 - Hard, for very professionals only
Platform: Unspecified/other
Language: Unspecified/other

Published: 31. Jan, 2001
Downloads: 2090

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Solutions

Solution by NeO'X'QuiCk, published 31. jan, 2001; download (3 kb), password: crackmes.de or browse.

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downloadbrowse2sweeet's sweeet dream v1.0

Download sweeet1.zip, 177 kb (password: crackmes.de)
Browse contents of sweeet1.zip

name/key/serial

Difficulty: 6 - Hard, for very professionals only
Platform: Unspecified/other
Language: Unspecified/other

Published: 02. Dec, 2000
Downloads: 2233

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Solutions

Solution by luucorp, published 31. dec, 2002; download (1 kb), password: crackmes.de or browse.

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Solution by NeO'X'QuiCk, published 02. dec, 2000; download (64 kb), password: crackmes.de or browse.

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Solution by NeO'X'QuiCk, published 02. dec, 2000; download (3 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowse3n!gMa's 3n!gMa's Nine Level Crackme

Download 3ngmas_9_lev_crackme.zip, 76 kb (password: crackmes.de)
Browse contents of 3ngmas_9_lev_crackme.zip

A nine Level VB Crackme With Many Protections

Difficulty: 3 - Getting harder
Platform: Unspecified/other
Language: (Visual) Basic

Published: 22. Mar, 2003
Downloads: 2292

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Solutions

Solution by CuTedEvil, published 01. apr, 2003; download (2 kb), password: crackmes.de or browse.

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downloadbrowse3n!gMa's ECG Random Serial

Download randomized_serial.zip, 3 kb (password: crackmes.de)
Browse contents of randomized_serial.zip

<*~*~*~*~*~ECG'S Random Serial~*~*~*~*~*~*

Difficulty: 6 - Hard, for very professionals only
Platform: Unspecified/other
Language: Unspecified/other

Published: 22. Mar, 2003
Downloads: 1861

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Solutions

Solution by kRio, published 03. mar, 2004; download (4 kb), password: crackmes.de or browse.

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downloadbrowse3n!gMa's VB Crackme Collection

Download vb_collection_v_1.60.zip, 60 kb (password: crackmes.de)
Browse contents of vb_collection_v_1.60.zip

< 15 Crackmes with varied protection schemes&gt

Difficulty: 4 - Needs special knowledge
Platform: Unspecified/other
Language: (Visual) Basic

Published: 02. Apr, 2003
Downloads: 2088

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Solutions

Solution by kRio, published 03. mar, 2004; download (32 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowse7ssX's .NET KeyGenMe #1

Download .NET_KeyGenMe_#1.zip, 8 kb (password: crackmes.de)
Browse contents of .NET_KeyGenMe_#1.zip

This is a simple KeyGenMe written in VB.NET.
Only write KeyGens, don't patch.
Have fun fellow reversers :)

Difficulty: 1 - Very easy, for newbies
Platform: Windows
Language: .NET

Published: 25. Aug, 2016
Downloads: 103

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Solutions

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Discussion and comments

DimitarSerg
19. Sep, 14:58
DimitarSerg
NaAQlLGU/HflTxBet8QcEg==

Very easy... Bad DES implementation... If you are using block cipher in protection you must use encrypt and decrypt. In this crackme you're using DES as one-way hash function :(
kuqadk3
20. Sep, 02:14
@DimitarSerq
Can you explain how it generate key
I dont understand TransformFinalBlock(bytes, 0, bytes.Length)
DimitarSerg
20. Sep, 06:29
@kuqadk3
in this case, you may not understand this operation, all that you need - call this function in your keygen:

public string enc(string stringInput, string key)
{
this.DES.Key = this.MD5Hash(key);
this.DES.Mode = CipherMode.ECB;
byte[] bytes = Encoding.ASCII.GetBytes(stringInput);
return Convert.ToBase64String(this.DES.CreateEncryptor().TransformFinalBlock(bytes, 0, bytes.Length));
}
kuqadk3
20. Sep, 08:33
I think i misunderstand something
First it get key (default by coder)
and convert string key -> md5 == DES.Key
And cipher mode = ECB
Yup,i encode my username with that key,dec-ecb,and convert it to base64, but still wrong :( dont know why
kuqadk3
21. Sep, 09:33
also,i am trying to create c++ keygen


downloadbrowseAaerox's Crackme #1

Download crackme1.zip, 19 kb (password: crackmes.de)
Browse contents of crackme1.zip

Reverse the counter

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 06. Mar, 2004
Downloads: 2453

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Solutions

Solution by Roma, published 09. mar, 2004; download (12 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseabcd's abcd's 2nd innings

Download crackme.zip, 128 kb (password: crackmes.de)
Browse contents of crackme.zip

Another command prompt crackme......Just crack the username and password!!

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: C/C++

Published: 05. Dec, 2007
Downloads: 853

Rating

Votes: 4
Crackme is boring.

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Solutions

Solution by john134, published 22. mar, 2008; download (9 kb), password: crackmes.de or browse.

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Discussion and comments

halsten
05. Dec 2007
You say assembler, but PEiD says the opposite (DevC++). Maybe the tool is wrong or I misunderstood something you wrote, eh?
w00b
05. Dec 2007
absolutely horrible string routines.. hint @ 401F56 :) i'm not familiar with the mingw library though :x
abcd
Author
06. Dec 2007
my bad :(....ya it is C++....was in a hurry when i uploaded this.....
w00b
09. Dec 2007
you compiled this with devc++, are you purposely printing characters to the screen 1 by 1 or is that just apart of how devcpp handles things?
abcd
Author
09. Dec 2007
@w00b....does it matter neway?? I'm surprised nobody has cracked it still...it was supposed to be an easy one...from a noob...:-)
halsten
09. Dec 2007
abcd: That doesn't mean that no one was unable to crack it. Mostly, everyone was bored with it or not interested.
abcd
Author
21. Dec 2007
290 downloads and no solutions...... i implore you people....pleaseeeee submit solutions.....
abcd
Author
17. Jan 2008
sorry emery....wrong solution...calls for a bit of registry....
emery
13. Feb 2008
Ah should have read the instructions a bit more carefully ;) Hopefully if I find some time I'll solve it the way as intended.

Cheers
john134
19. Mar 2008
Nice, I solved it :)
This was my 2nd crackme I ever tried ^^
abcd
Author
22. Mar 2008
Awesome work by john134....Kudos!!!
(at last.....)


downloadbrowseabcd's abcd's battleroyale

Download abcd__s_battle_royale.zip, 22 kb (password: crackmes.de)
Browse contents of abcd__s_battle_royale.zip

The challenge is to exploit vulnerability in the program and display a dialog box. Details in the readme file. This is a tough one for sure!!!

Difficulty: 4 - Needs special knowledge
Platform: Windows 2000/XP only
Language: .NET

Published: 26. Mar, 2008
Downloads: 497

Rating

Votes: 4
Crackme is good.

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Solutions

Solution by Ox87k, published 04. apr, 2008; download (1793 kb), password: crackmes.de or browse.

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Solution by DigitalAcid, published 04. apr, 2008; download (139 kb), password: crackmes.de or browse.

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Solution by antofik, published 04. apr, 2008; download (26 kb), password: crackmes.de or browse.

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Discussion and comments

DigitalAcid
27. Mar 2008
Hmm, your "solution" doesn't work here, because adresses are different.
I think we got to exploit the license file (buffer overflow or code injection or something ?).
cosmos
28. Mar 2008
Hmm i need to work more...
DigitalAcid
28. Mar 2008
I managed to inject a messagebox using the license file, but i still get an error after clicking the OK button.
I don't know enough to fix it =). Other than that, it works :P.
abcd
Author
29. Mar 2008
@DigitalAcid Please submit your solution....you may be right after all... :)
DigitalAcid
29. Mar 2008
Uploaded my tutorial.
If my solution is correct, I really liked this crackme :).
Sinok
29. Mar 2008
And if it isn't? :P
DigitalAcid
29. Mar 2008
Then i'm disappointed :P.
TeruS
30. Mar 2008
Own3d=)
I'll try to post only license.lic file as a solution :) Would you mind?
ksnrcp
31. Mar 2008
i think i got it : )

serveral jump above msgbox address can jump to check license ,hehehe
Ox87k
31. Mar 2008
very interesting, solved it!
I have a valid license file in order to exploit it as you want but i have a problem. I need esp but it change from pc to pc and so i can't memorize it. The only way i know is to create a loader that runs the crackme, after you press Test it grabs the value of esp and with it create a valid license file.

@abcd: Can it be a valid solution?
TeruS
31. Mar 2008
Ox87k, look at the IAT, and use it for yur sploit being work on other PC's. All you need is there(if i've unrerstood you properly). Good luck! :)
Ox87k
31. Mar 2008
TeruS, your keyfile doesn't work on my pc infact it crashes when, after retn, you call MessageBoxA (I don't understand why you can exploit it with a retn over messagebox without any parameters!).
You have to inject your code in the memory with the license file and not just call the messagebox (moreover without any parameter)
DigitalAcid
31. Mar 2008
Woah, Ox87k that looks great.
Mine is crashing all the time after clicking the OK button.
I don't think my solution will be right now =).
Allthough I can't download TeruS' file, I also exploited a RET to redirect it to my own code.
It should only work on my own pc, due to different adressess stuff.
Ox87k
31. Mar 2008
@DigitalAcid:
Exactly! ;)
But... Why your license crashing after clicking the Ok button?
DigitalAcid
31. Mar 2008
It's because of the RET.
I tried adding a jump to make it go back to some original code, but nothing seems to work.

@Ox87k: did you use/modify the about box 8-) ?
Ox87k
31. Mar 2008
@DigitalAcid:
Read the readme and see the iat (about your error)...! :P
I didn't use the about box and i didn't modify anything in the exe, just make all with the license file :)
DigitalAcid
31. Mar 2008
Oh, I didn't see we had to add "Hacked!" as text :s.
What is the connection of the IAT and my error O.o ?
Ox87k
31. Mar 2008
Are you sure to have readed the readme.txt? :D
Just think about this part:
"...the OK button to exit the program"
abcd
Author
01. Apr 2008
Just to make some things clear, the exit messagebox must appear like this:-
http://www.mediafire.com/imageview.php?quickkey=mhxxid53b4g&thumb=4

And to all those people who have solved it, please submit your tutorials. @Ox87k,your video preview was looking great.
Ox87k
01. Apr 2008
i submit my solution yesterday night ;)
TeruS
01. Apr 2008
Mmm... What i've done? i saw that name was loaded into stack without checking size. so we overwrite the return address of the function to

jmp dword ptr [MessageBoxA]

and while alling this in the top of stack there must be an address of ExitProcess and after it goparameters of these functions...
DigitalAcid
02. Apr 2008
@: Ox87k, thx for pointing that out :). It works without error now.

Weee, finally got a working version now :P. I had problems with my string that got overwritten.
After lots of frustration i now learned why it happened =).
Only had to add 3 bytes :O.
andrewl.us
Moderator
03. Apr 2008
How are you guys viewing submissions before any solutions are approved?
TiGa
04. Apr 2008
Nice to see new people making videos.
DigitalAcid
04. Apr 2008
I asked my nephew to test the crackme on his pc with my (same) license and he said it worked, so please somebody try my file too :).

It might have been coincidence.
abcd
Author
04. Apr 2008
@ DigitalAcid your solution did not work on my comp :( .... but i think you got the solution later so you can update it.....
TeruS
04. Apr 2008
if i understand correctly, then there can't be universal solution...
TeruS
04. Apr 2008
from all submitted solutions only one by DigitalAcid worked by me...
Ox87k
04. Apr 2008
@DigitalAcid:
Your keyfile doesn't work for me too but i don't think it's a problem.

I agree with TeruS, i think it's impossible to find a valid universal keyfile. All depend from ESP's value. Maybe in some machine it works good because they can have the same esp of DigitalAcid's solution required but in many other machine isn't it. You can see this difference in my solution, look the video-solution, i tried to show you this crackme over two different machine with the same os.
TeruS
05. Apr 2008
What about me - on VM my keyfile works almost good :) But instead of a good text in a box i recieve some unrecognizeble characters :)
DigitalAcid
06. Apr 2008
@Terus: I had the same problem but without using VM.
What i did was subtract a value from esp, as you can see in my tutorial.
My string simply got overwritten.
Ox87k
06. Apr 2008
@DigitalAcid:
If you don't wan't that your string is overwritten try to copy esp in another register and then subtract it as i did


downloadbrowseabcd's abcd's rack_your_brains

Download abcd__s_rack_your_brains.zip, 28 kb (password: crackmes.de)
Browse contents of abcd__s_rack_your_brains.zip

Just get the correct username/password combination....

Difficulty: 3 - Getting harder
Platform: Windows 2000/XP only
Language: .NET

Published: 03. Apr, 2008
Downloads: 344

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Solutions

Solution by aneasystone, published 10. apr, 2008; download (33 kb), password: crackmes.de or browse.

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Discussion and comments

DigitalAcid
04. Apr 2008
Is there any modification needed (patching) to find the right serial ?
Or is it a trick or bug ?

Ps: no matter what i put in, it does something with my input, then it's doing something (wich is always the same) and not using my input after that.
abcd
Author
04. Apr 2008
ok here goes a hint...stress on the word "exception" :P...now you should be able to get it...
CybeRCrasH
05. Apr 2008
e.g. the DivideByZeroException :P


downloadbrowseabcd's Li'l crackme

Download crackme2.zip, 128 kb (password: crackmes.de)
Browse contents of crackme2.zip

Simple command prompt crackme

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: C/C++

Published: 28. Nov, 2007
Downloads: 582

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Solutions

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Discussion and comments

DigitalAcid
28. Nov 2007
Patching it is easy, are we allowed to do that ? =)
abcd
Author
28. Nov 2007
No patching allowed :)
Devoney
02. Dec 2007
What do you mean by assembler language. It looks like this one is not coded with a C compiler or an asm compiler.... In which language is it really created and which compiler is used then?
xylitol
02. Dec 2007
crackMe crash on my computer
Devoney
03. Dec 2007
At one point I am in a loop. It checks the following lines for a byte 2C hex.
0022FD40 |7C90EE00 ntdll.7C90EE00
0022FD44 |7C96E0F8 ntdll.7C96E0F8

It looks like there are ntdll function stored at these memory adresses. What is the point of that to be checking that for 2C in hex? When one of those bytes is not 2C hex the next line is skipped:
00401695 . C745 E0 010000>MOV DWORD PTR SS:[EBP-20],1
and when this line is skipped the following line jumps over the goodboy message, exiting the program.
004016DB . 837D E0 00 CMP DWORD PTR SS:[EBP-20],0
004016DF 0F85 C0030000 JNZ crackme2.00401AA5

I can only make one thing out of this, that is that a ntdll function in the version of my dll files needs to contain a byte 2chex at its function calling address.

Is this supposed to be like that? what has this to do with the registry value and cracking the application? I did not patch anything. I have looked in my ntdll file and there are no functions at the specified addresses...

Could you give me a hint on this one?
Thanks, Devoney
abcd
Author
04. Dec 2007
@xylitol run it from command prompt,it should run fine...

@Devoney you are nearly there...just a little bit more...
Devoney
04. Dec 2007
ok,
from the memory stack address 0022FD40 to 0022FD47 the bytes are only filled when I debug the program using OllyDbg. When I output the data with a messagebox outside the debugger the bytes are empty. Is this a debug trick? and when these bytes are empty line 401695 is skipped, so the jump to 401AA5, skipping the goodboy message, is taken. Do I miss a part here? I definitely need a hint ;)
myitweb
24. Dec 2007
One question: what's crackmes means?
abcd
Author
25. Dec 2007
@myitweb...just a name to indiacte that it's gotta be reversed....
@Devoney...any luck yet??


downloadbrowseabex's abex1

Download haque_abex1.zip, 3 kb (password: crackmes.de)
Browse contents of haque_abex1.zip

cd-protection

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 04. Nov, 2001
Downloads: 8220

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Solutions

Solution by thomas.idpz.net, published 13. aug, 2004; download (8 kb), password: crackmes.de or browse.

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Solution by Squajbob, published 16. feb, 2004; download (3 kb), password: crackmes.de or browse.

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Solution by ShadowMaster, published 15. sep, 2003; download (1 kb), password: crackmes.de or browse.

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Solution by barcode_, published 22. mar, 2003; download (2 kb), password: crackmes.de or browse.

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Solution by Cipher, published 27. jul, 2002; download (1 kb), password: crackmes.de or browse.

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Solution by haque, published 04. nov, 2001; download (3 kb), password: crackmes.de or browse.

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Discussion and comments

h9430130
12. Mar 2007
this problem is so easy~!!
how to upload my fixed file??
zairon
Moderator
12. Mar 2007
Submission is closed because there are too many solutions for this crackme, we don't need another one. Please, work on unsolved crackmes :)
SubmiN|KinG
12. Mar 2007
zairon: i agree, this one was too simple... hehe :P
optiplex
19. Jul 2007
nice , very very nice , i also figured out you dont have to change to .. wel i dont know if im allowed to say :P but anyway, there is also another way :)
crackpot1978
15. Apr 2008
Solved, too. Very easy ;o)
Wofo
02. Oct 2008
Nice for newbies like me, my first resolved crackme :D
ArekBulski
22. Sep 2010
I like this one. Code is short, so it's not overwhelming me. Will definitely look at other crackmes from abex. =)
phylixal
09. Mar 2013
solved. My first crack.


downloadbrowseabex's abex2

Download l2cabxc2.zip, 6 kb (password: crackmes.de)
Browse contents of l2cabxc2.zip

Name/Serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 18. Sep, 2002
Downloads: 5550

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Solutions

Solution by thomas.idpz.net, published 13. aug, 2004; download (8 kb), password: crackmes.de or browse.

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Solution by AttilhaZ, published 16. may, 2004; download (20 kb), password: crackmes.de or browse.

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Solution by Tsongkie, published 28. oct, 2003; download (64 kb), password: crackmes.de or browse.

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Solution by Cipher, published 23. dec, 2002; download (3 kb), password: crackmes.de or browse.

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Solution by Exhuman, published 19. sep, 2002; download (1 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseabex's abex4

Download l2cabxc4.zip, 5 kb (password: crackmes.de)
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Serial / VB ?

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: (Visual) Basic

Published: 18. Sep, 2002
Downloads: 4191

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Solutions

Solution by thomas.idpz.net, published 13. aug, 2004; download (8 kb), password: crackmes.de or browse.

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Solution by Cipher, published 22. dec, 2002; download (2 kb), password: crackmes.de or browse.

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Solution by Scooby D0o, published 30. sep, 2002; download (4 kb), password: crackmes.de or browse.

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Solution by Exhuman, published 26. sep, 2002; download (22 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseabex's abex5

Download haque_abex5.zip, 45 kb (password: crackmes.de)
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serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 04. Nov, 2001
Downloads: 10488

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Solutions

Solution by thomas.idpz.net, published 13. aug, 2004; download (8 kb), password: crackmes.de or browse.

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Solution by Tsongkie, published 26. oct, 2003; download (3 kb), password: crackmes.de or browse.

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Solution by Cipher, published 27. jul, 2002; download (26 kb), password: crackmes.de or browse.

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Solution by haque, published 04. nov, 2001; download (45 kb), password: crackmes.de or browse.

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Discussion and comments

Hybr!d
04. Dec 2005
This is really good for a begginer like me. Thanx for the crackme!!
Xodarap
02. Jan 2006
Nice and easy. I like it :)
crackpot1978
15. Apr 2008
Solved, too - patched & keygen. Great tut ;o)
ArekBulski
23. Sep 2010
I like it, too. I got lost around those string-concat functions because I forgot that 1st parameter is a 2nd push. Another lesson learned the hard way. x)
phylixal
09. Mar 2013
easy enough for baby.
CrackMyAss
11. Mar 2013
just combine several strings to the same serial "L2C-57816784-ABEX"??
and the "GetVolumeInformation" seems useless??


downloadbrowseabex's abex 3

Download l2cabxc3.zip, 2 kb (password: crackmes.de)
Browse contents of l2cabxc3.zip

Keyfile

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 18. Sep, 2002
Downloads: 4411

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Solutions

Solution by thomas.idpz.net, published 13. aug, 2004; download (8 kb), password: crackmes.de or browse.

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Solution by Cipher, published 22. dec, 2002; download (2 kb), password: crackmes.de or browse.

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Solution by Exhuman, published 19. sep, 2002; download (1 kb), password: crackmes.de or browse.

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Discussion and comments

ArekBulski
23. Sep 2010
Simple code but very instructing, I like it. It totally reminded me that numbers in asm are in hex-system, so "cmp eax,12" is ...really... not twelve. =)
r-Evolution
27. Sep 2010
@ArekBulski cmp eax, 12 = cmp eax, 9 --> on decimal mode.You should know debuggers show numbers on hexadecimal mode.@Abex just one tip next time you write a keyfile if you don't like to make a multiple keyfile at least make it check for a standart key obsfucate the code pack it make a debug trick.And not a key whatever the cracker likes.I got bored on doing that.It's sooo obvious it took my 5 secs
r-Evolution
27. Sep 2010
i mean cmp eax, 12 = 18 idk where the fuck my brain was when i wrote this


downloadbrowseABugger's ABugger's fisrt crackme

Download ABuggerKeygenMe.zip, 6 kb (password: crackmes.de)
Browse contents of ABuggerKeygenMe.zip

This is my first crackme, it's developed in c# and obfuscated by my own obfuscator.
the only goal is make keygen.

Difficulty: 3 - Getting harder
Platform: Windows
Language: .NET

Published: 01. Jul, 2013
Downloads: 270

Rating

Votes: 3
Crackme is boring.

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Solutions

Solution by iSSoGoo, published 18. jul, 2013; download (45 kb), password: crackmes.de or browse.

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Discussion and comments

ABugger
Author
01. Jul 2013
No one are trying this crackme?
seVeb
02. Jul 2013
Downloaded it but I don't have any clue how to deal with obfuscated code :(
Jacker31
02. Jul 2013
Currently trying ... but it might take me some times....
neo85
02. Jul 2013
@seVeb: read the whole obfuscated code, try renaming the variable/object names and you will understand the code.

The usual keygens generate password from username, but with this one I think generating password from username is much harder then generating username from password.
Fatih54102
12. Jul 2013
de4dot can deobfuscate a bit.
i did not try making keygen.
Tiemooowh
29. Apr 2014
I think it was a quiet nice .NET application to reverse engineer. A few pitfalls make it challenging.


downloadbrowseABugger's MathCrackMe

Download MathCrackMe.zip, 4 kb (password: crackmes.de)
Browse contents of MathCrackMe.zip

It's just a little math crackme.

goal: find the valid combination without patching.

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: .NET

Published: 15. Aug, 2013
Downloads: 265

Rating

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Solutions

Solution by Gunther, published 03. sep, 2013; download (2 kb), password: crackmes.de or browse.

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Solution by stlcoder, published 16. aug, 2013; download (82 kb), password: crackmes.de or browse.

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Discussion and comments

haymizrachi
04. Dec 2015
The combination is 1 15 6, good crackme.


downloadbrowseABugger's Second crackme

Download ABuggerCrackMe2.zip, 33 kb (password: crackmes.de)
Browse contents of ABuggerCrackMe2.zip

This is my second crackme and it's very easy.
goal:make this crackme in trial mode without patching.

Difficulty: 1 - Very easy, for newbies
Platform: Windows
Language: .NET

Published: 10. Jul, 2013
Downloads: 922

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Solutions

Solution by Gunther, published 18. jul, 2013; download (2 kb), password: crackmes.de or browse.

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Discussion and comments

Gunther
11. Jul 2013
Very simple indeed but would be good for people who are trying crackme(s) for the very first time.


downloadbrowseabzet's EasyCrackme

Download crakmeeasy.zip, 2 kb (password: crackmes.de)
Browse contents of crakmeeasy.zip

Find the hardcoded password. good luck ;)

Difficulty: 1 - Very easy, for newbies
Platform: Windows
Language: C/C++

Published: 05. Nov, 2004
Downloads: 1727

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Solutions

Solution by D4M4G3_C453, published 05. nov, 2004; download (2 kb), password: crackmes.de or browse.

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Solution by Elrick, published 05. nov, 2004; download (1 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseacafeel's aCaFeeL's CrackMe V3

Download CrackMeV3.Fixed.zip, 102 kb (password: crackmes.de)
Browse contents of CrackMeV3.Fixed.zip

You have to find the correct code for your name.

G'luk

aCaFeeL

Difficulty: 3 - Getting harder
Platform: Windows
Language: Borland Delphi

Published: 06. Oct, 2006
Downloads: 235

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Solutions

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Discussion and comments

BaKaE
06. Oct 2006
what was wrong ?? why must it reuploaded ??
zairon
Moderator
06. Oct 2006
Little bug.
BaKaE
06. Oct 2006
ok! downloaded both ;-)
is it right that the difficulty-level was changed (4 -> 3)??
zairon
Moderator
07. Oct 2006
Yes


downloadbrowseacid_burn's This First VB Crackme

Download acidburn1.zip, 91 kb (password: crackmes.de)
Browse contents of acidburn1.zip

NaG / nAME-sERIAL / anti Smart check

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: (Visual) Basic

Published: 18. Jul, 2002
Downloads: 3192

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Solutions

Solution by EsKiMo, published 15. jan, 2006; download (524 kb), password: crackmes.de or browse.

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Discussion and comments

EsKiMo
07. Jan 2006
I busted a fossil :)


downloadbrowseacid bytes's cff crackme #2

Download cffo_2.zip, 129 kb (password: crackmes.de)
Browse contents of cffo_2.zip

serial

Difficulty: 6 - Hard, for very professionals only
Platform: Unspecified/other
Language: Unspecified/other

Published: 09. May, 2000
Downloads: 8681

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Solutions

Solution by bRaiN_faKKer, published 08. oct, 2002; download (917 b), password: crackmes.de or browse.

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Solution by Cipher, published 27. jul, 2002; download (2 kb), password: crackmes.de or browse.

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Solution by calculici, published 09. may, 2000; download (1 kb), password: crackmes.de or browse.

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Solution by frogger, published 09. may, 2000; download (893 b), password: crackmes.de or browse.

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Solution by code_inside, published 09. may, 2000; download (1006 b), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseacid bytes's cff crackme #3

Download cffo_3.zip, 126 kb (password: crackmes.de)
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name/serial

Difficulty: 6 - Hard, for very professionals only
Platform: Unspecified/other
Language: Unspecified/other

Published: 13. May, 2000
Downloads: 6043

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Solutions

Solution by nEo_TheOne, published 26. feb, 2004; download (637 b), password: crackmes.de or browse.

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Solution by Cipher, published 27. jul, 2002; download (2 kb), password: crackmes.de or browse.

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Solution by calculici, published 13. may, 2000; download (1 kb), password: crackmes.de or browse.

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Solution by code_inside, published 13. may, 2000; download (3 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseacid bytes's cff crackme #4

Download cffo_4.zip, 175 kb (password: crackmes.de)
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name/serial

Difficulty: 6 - Hard, for very professionals only
Platform: Unspecified/other
Language: Unspecified/other

Published: 09. Jul, 2000
Downloads: 5114

Rating

Votes: 3
Crackme is quite bad.

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Solutions

Solution by c_07, published 09. jul, 2006; download (566 kb), password: crackmes.de or browse.

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Solution by nEo_TheOne, published 24. feb, 2004; download (4 kb), password: crackmes.de or browse.

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Solution by Crudd, published 13. dec, 2002; download (10 kb), password: crackmes.de or browse.

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Solution by kgb, published 09. jul, 2000; download (1 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseacid cool 178's crackme #1

Download ac178_cm1.zip, 4 kb (password: crackmes.de)
Browse contents of ac178_cm1.zip

nag

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 01. Sep, 2000
Downloads: 4451

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Solutions

Solution by boylizard, published 16. sep, 2003; download (1 kb), password: crackmes.de or browse.

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Solution by code_inside, published 01. sep, 2000; download (3 kb), password: crackmes.de or browse.

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Solution by CuTedEvil, published 01. sep, 2000; download (2 kb), password: crackmes.de or browse.

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Discussion and comments

crackpot1978
16. Apr 2008
Solved - very very easy ;O)
daweedman
18. Jan 2011
even a caveman can do it XD


downloadbrowseacid cool 178's Crackme 1a for josephCo´s ExDec

Download ac_exdec_01_a.zip, 3 kb (password: crackmes.de)
Browse contents of ac_exdec_01_a.zip

Nag

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 18. Jul, 2002
Downloads: 2902

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Solutions

Solution by Cipher, published 26. jul, 2002; download (4 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseacid cool 178's Crackme 1 for josephCo´s ExDec

Download ac_exdec_01.zip, 2 kb (password: crackmes.de)
Browse contents of ac_exdec_01.zip

Nag

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 18. Jul, 2002
Downloads: 3955

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Solutions

Solution by Cipher, published 26. jul, 2002; download (3 kb), password: crackmes.de or browse.

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Solution by CuTedEvil, published 18. jul, 2002; download (4 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseacid cool 178's Crackme 2a for josephCo´s ExDec

Download ac_exdex_02_a.zip, 3 kb (password: crackmes.de)
Browse contents of ac_exdex_02_a.zip

Serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 18. Jul, 2002
Downloads: 3672

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Solutions

Solution by nEo_TheOne, published 27. feb, 2004; download (539 b), password: crackmes.de or browse.

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Solution by Cipher, published 26. jul, 2002; download (677 b), password: crackmes.de or browse.

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Solution by CuTedEvil, published 18. jul, 2002; download (809 b), password: crackmes.de or browse.

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downloadbrowseacid cool 178's Crackme 2b for josephCo´s ExDec

Download ac_exdec_02_b.zip, 3 kb (password: crackmes.de)
Browse contents of ac_exdec_02_b.zip

Serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 18. Jul, 2002
Downloads: 3221

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Solutions

Solution by Cipher, published 26. jul, 2002; download (1 kb), password: crackmes.de or browse.

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Solution by CuTedEvil, published 18. jul, 2002; download (3 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseacid cool 178's Crackme 3a for josephCo´s ExDec

Download ac_exdec_03_a.zip, 12 kb (password: crackmes.de)
Browse contents of ac_exdec_03_a.zip

Unknown

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 18. Jul, 2002
Downloads: 3127

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Solutions

Solution by Cipher, published 05. aug, 2002; download (3 kb), password: crackmes.de or browse.

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downloadbrowseacid cool 178's Crackme 3b for josephCo´s ExDec

Download ac_exdec_03_b.zip, 12 kb (password: crackmes.de)
Browse contents of ac_exdec_03_b.zip

Unknown, Hidden Button

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 18. Jul, 2002
Downloads: 2828

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Solutions

Solution by Cipher, published 05. aug, 2002; download (2 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseacid cool 178's Crackme Number 1 of 178

Download ac_crackme_1.78.zip, 31 kb (password: crackmes.de)
Browse contents of ac_crackme_1.78.zip

Visual Basic 6 - Serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: (Visual) Basic

Published: 18. Jul, 2002
Downloads: 3553

Rating

Votes: 3
Crackme is nothing special.

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Solutions

Solution by vxboy, published 13. apr, 2006; download (28 kb), password: crackmes.de or browse.

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Solution by sennin, published 24. aug, 2005; download (939 b), password: crackmes.de or browse.

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Solution by Cipher, published 26. jul, 2002; download (948 b), password: crackmes.de or browse.

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downloadbrowseacid cool 178's Crackme Number 2 of 178

Download ac_crackme_2.78.zip, 87 kb (password: crackmes.de)
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Serial Protection - Command Prompt

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 18. Jul, 2002
Downloads: 2962

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Solutions

Solution by Cipher, published 05. aug, 2002; download (650 b), password: crackmes.de or browse.

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downloadbrowseacid cool 178's Crackme Number 3 of 178

Download ac_crackme_3.78.zip, 4 kb (password: crackmes.de)
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Name/Serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 18. Jul, 2002
Downloads: 3148

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Solutions

Solution by DaKneeMan, published 06. oct, 2003; download (13 kb), password: crackmes.de or browse.

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Solution by Cipher, published 05. aug, 2002; download (1 kb), password: crackmes.de or browse.

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downloadbrowseacid cool 178's Crackme Number 5 of 178

Download ac_crackme_5.78.zip, 56 kb (password: crackmes.de)
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Serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 18. Jul, 2002
Downloads: 3051

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Solutions

Solution by kRio, published 17. jul, 2004; download (45 kb), password: crackmes.de or browse.

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downloadbrowseacid cool 178's Crackme Number 6 of 178

Download ac_crackme_6.78.zip, 11 kb (password: crackmes.de)
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Hellforge Strange Crackme - Many Levels !

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 18. Jul, 2002
Downloads: 2897

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Solutions

Solution by jack, published 22. oct, 2003; download (4 kb), password: crackmes.de or browse.

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downloadbrowseacid cool 178's Crackme Number 7 of 178 - Native

Download ac_crackme_7.78_n.zip, 49 kb (password: crackmes.de)
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Nag

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 18. Jul, 2002
Downloads: 3046

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Solutions

Solution by DaKneeMan, published 15. oct, 2003; download (11 kb), password: crackmes.de or browse.

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Solution by jack, published 16. apr, 2003; download (2 kb), password: crackmes.de or browse.

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downloadbrowseacid cool 178's Crackme Number 7 of 178 - P-Code

Download ac_crackme_7.78_p.zip, 47 kb (password: crackmes.de)
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Nag

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 18. Jul, 2002
Downloads: 2799

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Solutions

Solution by jack, published 23. mar, 2003; download (2 kb), password: crackmes.de or browse.

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downloadbrowseacid cool 178's Crackme Number 8 of 178

Download ac_crackme8.78.zip, 13 kb (password: crackmes.de)
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VB - 2 NAG's, Name and Serial - P-Code

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: (Visual) Basic

Published: 18. Jul, 2002
Downloads: 2843

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Solutions

Solution by DaKneeMan, published 16. oct, 2003; download (11 kb), password: crackmes.de or browse.

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downloadbrowseacid cool 178's crackme v.4.78

Download ac_crackme4.78.zip, 165 kb (password: crackmes.de)
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serial, nag

Difficulty: 6 - Hard, for very professionals only
Platform: Unspecified/other
Language: Unspecified/other

Published: 24. Jun, 2000
Downloads: 6672

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Solutions

Solution by EOD, published 24. jun, 2000; download (4 kb), password: crackmes.de or browse.

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downloadbrowseacid cool 178's The Return Of Acid Crackme

Download ac_return.zip, 81 kb (password: crackmes.de)
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Name,Group,Country,Calculation and NOT PACKED

Difficulty: 4 - Needs special knowledge
Platform: Unspecified/other
Language: Unspecified/other

Published: 18. Jul, 2002
Downloads: 2968

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Solutions

Solution by kRio, published 17. jul, 2004; download (77 kb), password: crackmes.de or browse.

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downloadbrowseacid cool 178's vb crackmes collection

Download ac178_vbcol.zip, 10 kb (password: crackmes.de)
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2 nag, 2 code (vb6 pcode)

Difficulty: 6 - Hard, for very professionals only
Platform: Unspecified/other
Language: (Visual) Basic

Published: 09. Jul, 2000
Downloads: 3305

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Solutions

Solution by Cipher, published 23. jul, 2002; download (11 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseAcid_Crack's A_C_C_M

Download Acid_Crack_cm_n2.zip, 4 kb (password: crackmes.de)
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Hell0,Acid_Crack is back again...
This is a key_gen me!!
Try t0 key_ken it and send your s0lution
Try it...it is tricky!!
%-)

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: (Visual) Basic

Published: 26. Nov, 2004
Downloads: 869

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Solutions

Solution by Kabbalah, published 22. dec, 2004; download (6 kb), password: crackmes.de or browse.

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Solution by Haykuro, published 06. dec, 2004; download (505 b), password: crackmes.de or browse.

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downloadbrowseAcid_Crack's Matrix_Acid_Crack

Download matrix.zip, 31 kb (password: crackmes.de)
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Try to crack it....

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 26. Sep, 2003
Downloads: 1983

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Solutions

Solution by Oorja-HalT, published 11. oct, 2003; download (2 kb), password: crackmes.de or browse.

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Discussion and comments



downloadadamziaja's crackme1

Download crackme1.tar.gz, 15 kb

try to solve :)

Difficulty: 1 - Very easy, for newbies
Platform: Unix/linux etc.
Language: C/C++

Published: 14. May, 2014
Downloads: 860

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Solutions

Solution by LeoC, published 09. sep, 2014; download (604 b), password: crackmes.de or browse.

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Solution by baderj, published 01. jul, 2014; download (4 kb), password: crackmes.de or browse.

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downloadbrowseAdjiang's KeyGenMe2

Download KeyGenMe2.zip, 14 kb (password: crackmes.de)
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KeyGenMe2 by Adjiang Include License.dat
Hi all cracker,i just make my new keygenme!
Rules:
1.Find a valid serial.
2.No Patching and Brute Force is allowed.
3.Enjoy:)
Keygen it and send your solution at slzeagle@hotmail.com

Best Regards
Adjiang

Difficulty: 4 - Needs special knowledge
Platform: Windows
Language: (Visual) Basic

Published: 06. Mar, 2007
Downloads: 420

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downloadbrowseAdjiang's KeyGenMe3

Download KeyGenMe3.zip, 18 kb (password: crackmes.de)
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KeyGenMe3 by Adjiang
Rules:
1.Find a valid serial.
2.No Patching and Brute Force is allowed.
3.Enjoy:)
Keygen it and send your solution at slzeagle@hotmail.com

Best Regards
Adjiang

Difficulty: 5 - Professional problem to solve
Platform: Windows
Language: (Visual) Basic

Published: 20. Mar, 2007
Downloads: 562

Rating

Votes: 3
Crackme is quite nice.

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Solutions

Solution by xylitol, published 21. oct, 2007; download (161 kb), password: crackmes.de or browse.

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Discussion and comments

br0ken
21. Oct 2007
Nice solution ;) I learned from yours.
br0ken
21. Oct 2007
To the mods.
My solution is similar to xylitol's. Only difference is , I used Olly. Should I upload?
xylitol
21. Oct 2007
ok thx br0ken
yes upload it :)
Adjiang
Author
03. Nov 2007
Sorry,reply late!Mods is oke,br0ken!Easy,mate!Just keygen it.
Adjiang
Author
03. Nov 2007
Yeah,i just upload new one!xylitol,you're smart only no keygen yet!!!!!!!!!


downloadbrowseAdjiang's Keygenme4

Download Keygenme4.zip, 36 kb (password: crackmes.de)
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Keygenme4 by Adjiang
Rules:
1.Defeated fake activation key
2.Find random valid key it only use number
3.Keygen it and send your solution at slzeagle@hotmail.com

Any bugs,suggestions or comments:
Best regards
Adjiang
Contact at messenger:slzeagle@hotmail.com

Difficulty: 5 - Professional problem to solve
Platform: Windows
Language: (Visual) Basic

Published: 31. Mar, 2007
Downloads: 573

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Discussion and comments



downloadbrowseAdjiang's keyGenMe#5

Download KeyGenMe#5.zip, 30 kb (password: crackmes.de)
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KeyGenMe#5 by Adjiang
Rules:
1.Find a valid serial.
2.No Patching and Brute Force is allowed.
3.Enjoy:)
Activated all feature with keygen the only solution and send your solution at slzeagle@hotmail.com

Best Regards
Adjiang

Difficulty: 6 - Hard, for very professionals only
Platform: Windows
Language: (Visual) Basic

Published: 04. Nov, 2007
Downloads: 534

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Solutions

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Discussion and comments

MR.HAANDI
04. Nov 2007
@author:
after 5 (not really high rated) VB crackmes, why don't you write what is special about this one, or why is it sth. other than your previous one, or why you've choosen VB as the language for it.
ChupaChu
07. Nov 2007
Im not much into VB, but it seems there is some crypto (maybe DES or similar) that creates a hash using name, id , and name of file (or project "KeyGenMe#5") whats being used as a key im not sure..
z01b
08. Nov 2007
i don't like crackmes on VB :(
z01b
08. Nov 2007
P.S. If i use as Name " ' ", the program gets overflowed
z01b
08. Nov 2007
i'm sorry, keycode


downloadbrowseAdjiang's KeyGenMe#MD5+TEAN +BLOWFISH+CRC32 Boom

Download KeyGenMe#MD5+TEAN_+BLOWFISH+CRC32_Boom.zip, 100 kb (password: crackmes.de)
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KeyGenMe#MD5+TEAN +BLOWFISH+CRC32 Boom
1.Packed With UPX(Overlay)
2.Anti Patching
3.MD5,TEA,Blowfish Hash Algorithm
4.Anti Brute Force Attack
5.Solved it!

Difficulty: 3 - Getting harder
Platform: Windows
Language: (Visual) Basic

Published: 09. Feb, 2006
Downloads: 955

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Solutions

Solution by Ank83, published 16. feb, 2006; download (122 kb), password: crackmes.de or browse.

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Discussion and comments

saitob
14. Aug 2007
I can't run the selfkeygen :S
Shism
16. Aug 2007
yup faulty solution......
Shism
21. Apr 2008
the self-keygen works now


downloadadrianbn's lincrackme1

Download lincrackme2.tgz, 2 kb

This is a linux crackme (32 and 64 bit). The goal is to obtain the correct key (there's just one valid key).

The crackme implements simple anti-debugging/anti-dissasembling tricks you'll have to bypass to get the key. Thus, the purpose is to learn this tricks and how to bypass them to achieve your goal.

This crackme is part of a series of crackmes I'll be publishing with different tricks, so people can learn more about this techniques in Linux.

Patching is allowed as last resource only. The key generation method is not complicated, because its not the goal of the crackme.

Have fun!

My own solution (and maybe some of yours) will be published here: http://securityetalii.es

Difficulty: 2 - Needs a little brain (or luck)
Platform: Unix/linux etc.
Language: C/C++

Published: 11. Oct, 2010
Downloads: 529

Rating

Votes: 7
Crackme is boring.

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Solutions

Solution by danieloop, published 21. oct, 2010; download (1 kb), password: crackmes.de or browse.

danieloop has rated this crackme as nothing special.

Solution by miguel, published 16. oct, 2010; download (1 kb), password: crackmes.de or browse.

miguel has rated this crackme as boring crap.

Solution by mensa13, published 16. oct, 2010; download (1 kb), password: crackmes.de or browse.

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Discussion and comments

tamaroth
Moderator
11. Oct 2010
I'll wait for next ones, this one didn't even require launching it (simple strcmp and key generation that can be calculated on a paper, just use IDA), drop a few more, more complicated crackmes/keygenmes for lin ;-)
adrianbn
Author
12. Oct 2010
Fair enough tamaroth ;) I'll be publishing more crackmes, increasing difficulty step by step, but I promise that in two or three more, you won't be able to use dead code analysys so easily ;)

Anyway, I recommend you that you try to find the antidebugging tricks, so next crackmes will be easier :)

Thanks for trying it and giving feedback!
tamaroth
Moderator
13. Oct 2010
I gave it a go with debugging under gdb, was quite interesting doing it for the first time, i considered writing some words about setting up your gdb and walking with it, but little bird told me that there's a tut in a queue already, so i stopped ;p


downloadadrianbn's lincrackme3

Download lincrackme3.tgz, 5 kb

This is the second of the lincrackme's series. The package contains a 32 bit version and a 64 bit one. The 32 bit version should work fine in a 64 bit system anyway, but just in case...

As usual, the goal is to locate and understand the antidebugging techniques, and learn how to disable them. Once that's done, you have to understand the key checking method and get some valid keys (best if you make a keygen for it!!).

You can patch the binary to bypass the antidebugging techniques (however thats not mandatory), but you shouldn't patch to get the right message. Find the correct key algorithm. Brute-forcing the keys is not allowed either.

My own solution, (and maybe some of yours, if you want) will be published here: http://securityetalii.es with the solutions to the rest of the lincrackmes series (lincrackme2 so far).

PS: Give me all the feedback you can, please, about the difficulty level (is it right?) and everything else. You can contact in the comments or by mail at adrianbn[_AT_]gmail [_dOt_]com. Thanks!

Difficulty: 3 - Getting harder
Platform: Unix/linux etc.
Language: C/C++

Published: 01. Nov, 2010
Downloads: 529

Rating

Votes: 6
Crackme is nothing special.

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Solutions

Solution by hasherezade, published 23. nov, 2010; download (580 kb), password: crackmes.de or browse.

hasherezade has rated this crackme as awesome.

Solution by miguel, published 21. dec, 2010; download (5 kb), password: crackmes.de or browse.

miguel has rated this crackme as nothing special.

Solution by jjjjj, published 21. dec, 2010; download (2 kb), password: crackmes.de or browse.

jjjjj has rated this crackme as nothing special.

The submission of solutions is closed.

Discussion and comments

tamaroth
Moderator
15. Nov 2010
Quite fun. Used ida + remote debugging to get to the code, quite fun. Even though you said no bruteforcing is allowed, i used simple brute force to generate completely random serials. i hope that's enough ;-)

Here are few sample serials:
3912-8939-1011-6139
0436-4302-0400-1033
1725-3837-3107-3220

I'm quite bad at writing tutorials, but maybe i'll drop one once i get some willingness into me ;p
adrianbn
Author
17. Nov 2010
Hi tamaroth,

Im glad you enjoyed the crackme. Did you actually got the key from the code or made a bf program who generates keys and tests them against the crackme? The second one is like cheating! :P

The algo is quite open, in the meaning that there are lots of valid keys, so a bf attempt will likely succeed.

Put some willingness and be the first to submit a solution ;)
tamaroth
Moderator
17. Nov 2010
I'll drop you my keygenerator (it's written in C, all by myself), therefore it's a keygen but it uses some form of brute force (generates random numbers and then check then against the checks that are made inside crackme). See pm with the link to the keygen :)
adrianbn
Author
17. Nov 2010
Tamaroth, that's exactly the kind of solution I was looking for. I first understood that you just generated random numbers and feed the crackme with them to see if they fit. That was obviously not allowed.

However your keygen demonstrates that you've bypassed all the protections, understood the code and code somthing similar in C to find the keys. Very nice job! :)
hasherezade
17. Nov 2010
i solved it too... very pleasant crackme, thank You!
hasherezade
17. Nov 2010
some other sample keys:
5567-5545-5500-5600
4555-9998-7766-1000
^^
I will submit my solution as soon as i will get some time to describe it nicely.
adrianbn
Author
18. Nov 2010
Hi hasherezade,

Good you find the crackme pleasant :) Go for it and post a solution!
miguel
23. Nov 2010
The key algo is funny.
The antidebugging protections are well known by reversers.
My solution is waiting the moderators review since nov, 12th
they may be really busy. ;-)
adrianbn
Author
26. Nov 2010
Finally hasherezade's solution went through. Good job dude! It's very good, both technically and written/explained. I promise I'll publish next crackme (harder ;) soon, Im quite busy at the moment, but december should be a good month to program a little.

Hope there are more solutions on the way (thanks miguel). I love reading how each person solves it in different ways :)
acez
06. Nov 2012
very good crackme, i will post my solution soon
4148-2898-8124-1114
tvk6843
08. Dec 2014
Just for fun :-) The keygen should starts from the sums of the numbers

the key is: 0049-0005-0004-1310
the key is: 0049-0005-0004-1400
the key is: 0049-0005-0004-2003
the key is: 0049-0005-0004-2012
the key is: 0049-0005-0004-2021
the key is: 0049-0005-0004-2030
the key is: 0049-0005-0004-2102
the key is: 0049-0005-0004-2111
the key is: 0049-0005-0004-2120
the key is: 0049-0005-0004-2201
the key is: 0049-0005-0004-2210
the key is: 0049-0005-0004-2300
the key is: 0049-0005-0004-3002
the key is: 0049-0005-0004-3011
the key is: 0049-0005-0004-3020
the key is: 0049-0005-0004-3101
the key is: 0049-0005-0004-3110
the key is: 0049-0005-0004-3200
the key is: 0049-0005-0004-4001
the key is: 0049-0005-0004-4010
the key is: 0049-0005-0004-4100
the key is: 0049-0005-0004-5000
blankwall
24. Apr, 20:41
http://paste.ubuntu.com/16035640/


downloadbrowseAenox's CrackMe4rd

Download CrackMe4rd.zip, 16 kb (password: crackmes.de)
Browse contents of CrackMe4rd.zip

Nag and button activation timer. Shouldn't be too hard (or easy!)."

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: C/C++

Published: 08. Jun, 2005
Downloads: 914

Rating

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Solutions

Solution by red477, published 20. jun, 2005; download (23 kb), password: crackmes.de or browse.

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Discussion and comments

Aenox
Author
08. Jun 2005
This was fun to try and crack myself. I didn't follow any anti-cracking guides but still tried some protection.

Please post your observations or even if you only manage to correctly remove the first nag.
pxor
08. Jun 2005
it was too easy to remove nag just breaking it on messageboxa and patch 1 byte :/ these same with timer

validation proc of activation code looks nasty ;p (its good :D)

name -> registration code is too easy
but its good that u put that in another thread :o

there was also some fake calls :D

keep trying :P
Aenox
Author
09. Jun 2005
Only patching 1 byte to remove the nag will stop the program functioning in other ways...
Oorja-HalT
22. Jun 2005
I think the solution for this crackme is incomplete without mentioning why a breakpoint is set on 4012F0.
red477
22. Jun 2005
Sorry for that,I'd ever thought i did not have to explain everything very very clearly.And the most important,I am a very newbie,so plz forgive me for my mistakes.
I set a breakpoint there just that the ollydbg told me that it is the ThreadFunction there:

00401593 . 68 F0124000 push CrackMe4.004012F0 ; |ThreadFunction = CrackMe4.004012F0<-the keygen funtion!?

I think it must be useful.so...you can say that I cracked it just not by the little brain but by the little luck. :)
Again I feel sorry for any defects that are in my solution.
====================
sorry for my english...:(
Oorja-HalT
22. Jun 2005
You need'nt be that appologetic.
BTW did you notice the sleep call just after the create thread (of equal priority : pointer to thread function at 4012F0). After that Sleep is called at parameter passed for sleep is 0. And if you look at the explanation for winapi sleep you would find
"A value of zero causes the thread to relinquish the remainder of its time slice to any other thread of equal priority that is ready to run. If there are no other threads of equal priority ready to run, the function returns immediately, and the thread continues execution."
So what sleep does is to direct the control flow to 4012F0 which have the algo to check user input"

It was a clever way to conceal and execute the serial verification
donjoe145
18. Aug 2005
I cracked in like 4-5 min. it was real fun in response to Aenox for the nag i just nop'd 4016AC-4016B0 and 401745-401749, i found those calls with ida's XREF and patched with olly,

to Aenox do those patches stop the programming in functioning in others ways?


downloadbrowseaeorophagia's Secret

Download secret.zip, 213 kb (password: crackmes.de)
Browse contents of secret.zip

KeygenMe

Difficulty: 3 - Getting harder
Platform: Unspecified/other
Language: Unspecified/other

Published: 24. May, 2004
Downloads: 1352

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Solutions

Solution by shvanz0r, published 12. jul, 2004; download (3 kb), password: crackmes.de or browse.

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Solution by ZeroZero, published 25. may, 2004; download (7 kb), password: crackmes.de or browse.

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Solution by Plasmator, published 25. may, 2004; download (30 kb), password: crackmes.de or browse.

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Solution by +Pumqara, published 25. may, 2004; download (2 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseAesculapius's +HCU Strainer

Download aescu_mi.zip, 3 kb (password: crackmes.de)
Browse contents of aescu_mi.zip

Strainer. Name/Serial

Difficulty: 9 - You can't solve this yourself :)
Platform: Unspecified/other
Language: Unspecified/other

Published: 18. Sep, 2002
Downloads: 4053

Rating

Votes: 8
Crackme is nothing special.

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Solutions

Solution by Canterwood, published 09. jan, 2004; download (74 kb), password: crackmes.de or browse.

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Solution by havok, published 25. oct, 2003; download (12 kb), password: crackmes.de or browse.

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Solution by kRio, published 29. jun, 2005; download (18 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseAgent's [pSyChoO_cRaCkmE]

Download psychoo.zip, 2 kb (password: crackmes.de)
Browse contents of psychoo.zip

if you can crack it you&#039;re real psychoo crack

Difficulty: 7 - Very hard
Platform: Unspecified/other
Language: Unspecified/other

Published: 13. Sep, 2003
Downloads: 2050

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Solutions

Solution by boylizard, published 19. sep, 2003; download (4 kb), password: crackmes.de or browse.

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Solution by diablo2oo2, published 16. sep, 2003; download (3 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseaharli's crackme

Download crackme.zip, 7 kb (password: crackmes.de)
Browse contents of crackme.zip

Please Crack this file

Difficulty: 1 - Very easy, for newbies
Platform: Windows
Language: .NET

Published: 21. May, 2008
Downloads: 581

Rating

Votes: 4
Crackme is quite bad.

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Solutions

Solution by xylitol, published 23. jun, 2008; download (1537 kb), password: crackmes.de or browse.

xylitol has rated this crackme as boring.

Solution by costy, published 23. jun, 2008; download (79 kb), password: crackmes.de or browse.

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Discussion and comments

MACH4
21. May 2008
Too easy by far!!!
andrewl.us
Moderator
22. May 2008
MACH4: Maybe it's time you try something harder than level 1, 2
Jim~
22. May 2008
The scrambled/obfuscated code doesn't do anything to make the crackme harder, since the user/pass are stored as plain text in plain sight.
MACH4
22. May 2008
yea, I getting bored now! looking at those old unsolved dos ones!


downloadbrowseAhmet_SS0's Ahmet_SS_Crackme#2

Download Ahmet_SS_Crackme#2.zip, 10 kb (password: crackmes.de)
Browse contents of Ahmet_SS_Crackme#2.zip

NO patch
No bruteforce
Please make a keygen

if u can make a video , how did u do that , i will give a special thank you. Cause of everyone
will learn how can do it...

Good luck !

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: C/C++

Published: 19. Feb, 2009
Downloads: 458

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Solutions

Solution by kstangl, published 23. feb, 2009; download (27 kb), password: crackmes.de or browse.

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Solution by freesoul, published 20. feb, 2009; download (18 kb), password: crackmes.de or browse.

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Discussion and comments

freesoul
20. Feb 2009
solution sent... xD
EKo-rus
20. Feb 2009
helo! I badly know English and i don't make a keygen, but:

Lable1 - EKo-rus
Lable2 - 618F82E0-54C6D738
freesoul
20. Feb 2009
fishing serial it's extremely easy :D
EKo-rus
20. Feb 2009
0040110C |> 8B45 FC /MOV EAX,DWORD PTR SS:[EBP-4]
0040110F |. 83C0 01 |ADD EAX,1
00401112 |. 8945 FC |MOV DWORD PTR SS:[EBP-4],EAX
00401115 |> 8B4D 08 MOV ECX,DWORD PTR SS:[EBP+8]
00401118 |. 034D FC |ADD ECX,DWORD PTR SS:[EBP-4]
0040111B |. 0FBE11 |MOVSX EDX,BYTE PTR DS:[ECX]
0040111E |. 85D2 |TEST EDX,EDX
00401120 |. 74 02 |JE SHORT Ahmet_SS.00401124
00401122 |.^EB E8 \JMP SHORT Ahmet_SS.0040110C

- This code reads the typed key


004011A3 |> 8B45 FC /MOV EAX,DWORD PTR SS:[EBP-4]
004011A6 |. 83C0 01 |ADD EAX,1
004011A9 |. 8945 FC |MOV DWORD PTR SS:[EBP-4],EAX
004011AC |> 8B4D 08 MOV ECX,DWORD PTR SS:[EBP+8]
004011AF |. 034D FC |ADD ECX,DWORD PTR SS:[EBP-4]
004011B2 |. 0FBE11 |MOVSX EDX,BYTE PTR DS:[ECX]
004011B5 |. 85D2 |TEST EDX,EDX
004011B7 |. 74 02 |JE SHORT Ahmet_SS.004011BB
004011B9 |.^EB E8 \JMP SHORT Ahmet_SS.004011A3

- This code generates the correct key


YES???
freesoul
20. Feb 2009
no xD, that code just calculates length


downloadbrowseAjax's SMART1.COM - 387bytes

Download smart1.zip, 1 kb (password: crackmes.de)
Browse contents of smart1.zip

Serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 19. Jul, 2002
Downloads: 3644

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Solutions

Solution by Opx, published 20. oct, 2003; download (688 b), password: crackmes.de or browse.

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Solution by minos, published 25. jul, 2002; download (2 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseAjax's SMART2.COM - 107bytes

Download smart2.zip, 552 b (password: crackmes.de)
Browse contents of smart2.zip

Serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 19. Jul, 2002
Downloads: 3265

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Solutions

Solution by Opx, published 20. oct, 2003; download (400 b), password: crackmes.de or browse.

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Solution by CuTedEvil, published 23. jul, 2002; download (818 b), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseAjax's SMART3.COM - 127bytes

Download smart3.zip, 472 b (password: crackmes.de)
Browse contents of smart3.zip

Serial

Difficulty: 3 - Getting harder
Platform: Unspecified/other
Language: Unspecified/other

Published: 19. Jul, 2002
Downloads: 3094

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Solutions

Solution by Opx, published 20. oct, 2003; download (487 b), password: crackmes.de or browse.

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Solution by CuTedEvil, published 25. jul, 2002; download (719 b), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseAjax's SMART4.COM - 120bytes

Download smart4.zip, 560 b (password: crackmes.de)
Browse contents of smart4.zip

Serial

Difficulty: 4 - Needs special knowledge
Platform: Unspecified/other
Language: Unspecified/other

Published: 19. Jul, 2002
Downloads: 3020

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Solutions

Solution by Opx, published 20. oct, 2003; download (178 b), password: crackmes.de or browse.

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Solution by CuTedEvil, published 25. jul, 2002; download (14 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseAjax's SMART5.COM - 185bytes

Download smart5.zip, 620 b (password: crackmes.de)
Browse contents of smart5.zip

Serial

Difficulty: 5 - Professional problem to solve
Platform: Unspecified/other
Language: Unspecified/other

Published: 19. Jul, 2002
Downloads: 2845

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Solutions

Solution by CuTedEvil, published 26. jul, 2002; download (20 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseAjax's SMART6.COM - 2400 bytes

Download smart6.zip, 2 kb (password: crackmes.de)
Browse contents of smart6.zip

Serial

Difficulty: 6 - Hard, for very professionals only
Platform: Unspecified/other
Language: Unspecified/other

Published: 19. Jul, 2002
Downloads: 2708

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Solutions

Solution by EOD, published 16. aug, 2003; download (16 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseajron's ajroncrackme

Download ajron_crackme.zip, 5 kb (password: crackmes.de)
Browse contents of ajron_crackme.zip

name/serial (asm)

Difficulty: 6 - Hard, for very professionals only
Platform: Unspecified/other
Language: Unspecified/other

Published: 26. Jul, 2001
Downloads: 2924

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Solutions

Solution by nh, published 26. jul, 2001; download (8 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseAK87's KeygenMe #1

Download keygenme_end.zip, 4 kb (password: crackmes.de)
Browse contents of keygenme_end.zip

Rules:
1-) Make a keygen that fully works.
2-) No patching the serial routine ofcourse.
3-) Write a solution/tutorial.

Have fun :-)

Difficulty: 3 - Getting harder
Platform: Windows
Language: C/C++

Published: 24. Jun, 2007
Downloads: 338

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Solutions

There are no solutions to this crackme yet. Have you solved it? Please write a tutorial and submit it here!

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Discussion and comments

hound
25. Jun 2007
004010D9 |> /8B4D FC /MOV ECX,[LOCAL.1]
004010DC |. |83C1 01 |ADD ECX,1
004010DF |. |894D FC |MOV [LOCAL.1],ECX
004010E2 |> |8B55 FC MOV EDX,[LOCAL.1]
004010E5 |. |3B55 0C |CMP EDX,[ARG.2]
004010E8 |. |7D 4F |JGE SHORT keygenme.00401139
004010EA |. |837D FC 1E |CMP [LOCAL.1],1E
004010EE |. |7D 35 |JGE SHORT keygenme.00401125
004010F0 |. |8B45 08 |MOV EAX,[ARG.1]
004010F3 |. |0345 FC |ADD EAX,[LOCAL.1]
004010F6 |. |0FBE08 |MOVSX ECX,BYTE PTR DS:[EAX]
004010F9 |. |8B55 08 |MOV EDX,[ARG.1]
004010FC |. |0355 FC |ADD EDX,[LOCAL.1]
004010FF |. |0FBE42 03 |MOVSX EAX,BYTE PTR DS:[EDX+3]
00401103 |. |03C8 |ADD ECX,EAX ; adds +0 and + 3
00401105 |. |8B55 08 |MOV EDX,[ARG.1]
00401108 |. |0355 FC |ADD EDX,[LOCAL.1]
0040110B |. |0FBE42 01 |MOVSX EAX,BYTE PTR DS:[EDX+1]
0040110F |. |8B55 08 |MOV EDX,[ARG.1]
00401112 |. |0355 FC |ADD EDX,[LOCAL.1]
00401115 |. |0FBE52 02 |MOVSX EDX,BYTE PTR DS:[EDX+2]
00401119 |. |2BC2 |SUB EAX,EDX ; sub +2 from + 1
0040111B |. |3BC8 |CMP ECX,EAX
0040111D |. |74 04 |JE SHORT keygenme.00401123
0040111F |. |32C0 |XOR AL,AL
00401121 |. |EB 18 |JMP SHORT keygenme.0040113B
00401123 |> |EB 12 |JMP SHORT keygenme.00401137
00401125 |> |8B45 08 |MOV EAX,[ARG.1]
00401128 |. |0345 FC |ADD EAX,[LOCAL.1]
0040112B |. |0FBE08 |MOVSX ECX,BYTE PTR DS:[EAX]
0040112E |. |83F9 6F |CMP ECX,6F ; 'o'
00401131 |. |74 04 |JE SHORT keygenme.00401137
00401133 |. |32C0 |XOR AL,AL
00401135 |. |EB 04 |JMP SHORT keygenme.0040113B
00401137 |>^\EB A0 \JMP SHORT keygenme.004010D9

Uh, I think there must be a mistake in this, as there is no way of a difference in characters to equal their sum, with ASCII characters....

As the last two characters are 'o', then you should be able to work backwards, if you randomly generate a character before the 'o's. E.g. Xkoo. You can then work out X using the sums and differences, but the sums end up about $F0, and this is MASSIVE difference, between any ascii characters.

Please correct me, if Im wrong though

Cheers
-hound
TiGa
25. Jun 2007
There is an anti-debug trick that trips even outside a debugger and sends a "divide by 0" error.

If the last 2 chars are 'o', the 3rd to last should be 00.

X = 3rd to last char
Y = 00 string-ender

X+Y = 'o'-'o'
X = 'o'-'o'-Y
X = 00

Using hound's example of Xkoo, k would have to be 00.

Unless I missed something, it doesn't look like it can be solved.
hound
25. Jun 2007
Yeah, I know all the anti debug etc, but it cant be solved because the sum-difference thing etc...

The sums are the other way around the Tiga. The 1st char in the set of four is added to the 4th char, and this must equal the difference between the 2nd and 3rd (2nd - 3rd).
TiGa
25. Jun 2007
I don't think you're understanding my example. The sums are the other way around?

Let's say serial finishes with koo.
Verification is:
char[i] + char[i+3] = char[i+1] - char[i+2]
To find char[i]:
char[i] = char[i+1] - char[i+2] - char[i+3]

Let's find what k has to be:
char[i] = 'o' - 'o' - 00

What I was trying to say is:
The last time the sum-difference is checked, the 4th char is the string-ender 00.

At least, we're both agreeing that it cannot be solved.
Crosys
25. Jun 2007
Well, i guess it can be solved, using chars over the standard ASCII. After some calcs i found that the 4 chars "áÑãÃ", can be used the serial. Will correspond in the calcs..

á 0xFFFFFFE1
Ñ 0xFFFFFFD1
ã 0xFFFFFFE3
à 0xFFFFFFC3

So for example, "ã9áu7913451345791345134579134511" will bypass first round, writing a algorithm to solve next-by-next char through the serial should be possible, im gonna look at it more tonight, just took a quick look now.
TiGa
25. Jun 2007
The problem I found is in the last round when ecx = 29.
char[ecx+3] = 00 string ender

When ecx = 30 or ecx = 31, char must be 'o'.
hound
25. Jun 2007
Yeah TiGa, sorry about that. You did the same thing as myself. I didn't even think about the null character being used however :S.
hound
25. Jun 2007
Crosys, only alpha numeric characters can be used, and there is also a restriction from the 16 letter word aswell...
AK87
Author
26. Jun 2007
First of all, nice analyses, I am impressed, secondly, there seemed to be a problem with the algorithm, sorry about that, here is the source, hope it will help somehow..

http://www.kucuk87.demon.nl/c/algorithm.cpp
http://www.kucuk87.demon.nl/c/dialog.cpp
http://www.kucuk87.demon.nl/c/main.cpp


Problem is here (thanks to TiGa for pointing):
for(i = 0;i < len;i++) {
if(i < 30) {
if((str[i] + str[i+3]) != (str[i+1] - str[i+2])) return 0;
}
else {
if(str[i] != 'o') return 0;
}
}

Since the serial should be 32 characters long, and when i = 29, i+3 (which should be a 0x00 byte) checks for a different character,

other than that, it has too few serial combinations.


downloadbrowseakcom's Crack Me v1

Download CrackMe1.zip, 2 kb (password: crackmes.de)
Browse contents of CrackMe1.zip

System ID to System Key crackme. Simply write a keygen that works, no patching.

Difficulty: 3 - Getting harder
Platform: Windows
Language: C/C++

Published: 14. Nov, 2004
Downloads: 825

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Solutions

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Discussion and comments

warrantyVoider
09. Jul 2005
Hi akcom, I have the feeling that there´s a problem with your crackme. If I´m not mistaken You can only generate a correct serial if the first and third value and the second and fourth value of the system info string are complements (~) of each other.

At least on my system that´s just not the case.
Ox87k
11. Jul 2005
hi guys, i tried this crackme but i cannot find a valid serial for my system-ID. So.. my conclusion is that there is a bug!
DeepBlue
18. Jul 2005
Then just patch this bitch, so that it accepts all serials ;D
Ox87k
18. Jul 2005
Yeah DeepBlue but akcom write "no patching" :|
haggar
18. Jul 2005
This crackme was discussed two times under Crackmes forum and both times everybody agreed that there is bug in it and that it cannot be solved. I don't know why crackme is still here.


downloadbrowsealbertus's Keygenme.v.1.by.albertus

Download Keygenme.v.1.by.albertus.zip, 141 kb (password: crackmes.de)
Browse contents of Keygenme.v.1.by.albertus.zip

There are no anti-debbuging tricks.
Patching is not allowed.
Please write tutorial and keygen.

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: C/C++

Published: 19. Feb, 2014
Downloads: 520

Rating

Votes: 4
Crackme is boring.

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Solutions

Solution by cr00k3dc0d3r, published 26. mar, 2014; download (12 kb), password: crackmes.de or browse.

cr00k3dc0d3r has rated this crackme as nothing special.

Solution by basscode, published 26. mar, 2014; download (182 kb), password: crackmes.de or browse.

basscode has rated this crackme as boring crap.

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Discussion and comments

RaptorFactor
21. Feb 2014
Not sure if was intended or not, but the debug information is included in the binary...
basscode
22. Feb 2014
Easy keygen :
User : YdWt4vT@FHH
Pass : 000


User : Yik$a%xJXhGq
Password : 0000

Username has to be 11 in length.
Submitted my keygen.
Thanks.
cr00k3dc0d3r
19. Mar 2014
Hi Albertus,

Thank you for taking the time to create this crackme. I solved it and have submitted my solution.


downloadbrowsealcohol1231's KV-Soft Crackme v0.1

Download kv-soft_crackme.zip, 20 kb (password: crackmes.de)
Browse contents of kv-soft_crackme.zip

It's a crackme.

You guys have to find out the password, or patch it, your choice, submit a sollution ;)

Difficulty: 1 - Very easy, for newbies
Platform: Windows
Language: Unspecified/other

Published: 06. Dec, 2010
Downloads: 782

Rating

Votes: 5
Crackme is boring.

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Solutions

Solution by Mayhem, published 06. dec, 2010; download (21 kb), password: crackmes.de or browse.

Mayhem has rated this crackme as boring crap.

The submission of solutions is closed.

Discussion and comments

Mayhem
06. Dec 2010
Solved. Writing tutorial atm.
alcohol1231
Author
06. Dec 2010
Well, boring crap or not, good solution..
Mayhem
06. Dec 2010
Thanks, please excuse the "boring crap" rating, I was aiming for the "kinda boring" link but missed. :/
alcohol1231
Author
07. Dec 2010
No offence taken... ;)
zaabz
08. Dec 2010
That was a good first-timer crackmes, in my opinion. Bit easy, but still made me think.
alcohol1231
Author
08. Dec 2010
Good to hear ;)
gr00ve
13. Dec 2010
don´t really know, how I did this, but I did it.
Just scrolling through the program found BAT code, and further is very simple.

Pass: 4309i5gm309mi5g09i353m04gm0im54m5i93093****


downloadbrowseAlienz's #CrackMe#

Download #CrackMe#.zip, 27 kb (password: crackmes.de)
Browse contents of #CrackMe#.zip

This is my first Crackme
You have to get the second password
I hope it will be hard to crack this :)

Difficulty: 4 - Needs special knowledge
Platform: Windows
Language: C/C++

Published: 19. Dec, 2006
Downloads: 215

Rating

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Solutions

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Discussion and comments

Alienz
Author
01. Feb 2007
Hmm... is it too hard for you, or is it uncrackable? Because i dont know how to crack this without bruteforce which can take few years so I submitted it here and it is still uncracked...


downloadbrowsealong3x's zebra

Download zebrone.zip, 2 kb (password: crackmes.de)
Browse contents of zebrone.zip

here&#039; s a crackme based on solving a mat...

Difficulty: 6 - Hard, for very professionals only
Platform: Unspecified/other
Language: Unspecified/other

Published: 11. Jul, 2002
Downloads: 2846

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Solutions

Solution by deurus, published 13. nov, 2014; download (1671 kb), password: crackmes.de or browse.

deurus has rated this crackme as quite nice.

Solution by cronos, published 11. jul, 2002; download (5 kb), password: crackmes.de or browse.

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Discussion and comments

deurus
12. Oct 2014
Solución completa: http://garikoitz.info/blog/2014/10/solucion-al-crackme-zebra-1-1-de-along3x/
deurus
04. Feb, 20:55
Updated: http://deurus.info/2014/10/solucion-al-crackme-zebra-1-1-de-along3x/


downloadbrowsealong3x's zebra

Download zebrone.zip, 2 kb (password: crackmes.de)
Browse contents of zebrone.zip

name/serial

Difficulty: 6 - Hard, for very professionals only
Platform: Unspecified/other
Language: Unspecified/other

Published: 23. Apr, 2000
Downloads: 3026

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Solutions

Solution by cronos, published 23. apr, 2000; download (5 kb), password: crackmes.de or browse.

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Discussion and comments

deurus
04. Feb, 20:57
http://deurus.info/2014/10/solucion-al-crackme-zebra-1-1-de-along3x/


downloadbrowseals pom's crackme2

Download crackme_2.zip, 27 kb (password: crackmes.de)
Browse contents of crackme_2.zip

This is a simple crackme written in Visual C++ 6.0.
You have to make a keygen of it.

Difficulty: 1 - Very easy, for newbies
Platform: Windows
Language: C/C++

Published: 24. Nov, 2009
Downloads: 1252

Rating

Votes: 3
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Solutions

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Discussion and comments

Skandal87
25. Nov 2009
My first one, liked it ;)

Spent most time on keygen, didnt code for a lot of time...decided to write it in delphi, next time im gonna write it in java, and then in c++, just to learn more ^^

Solution submitted.
qHF;
27. Nov 2009
Ummm... BLODYALBO that is not right.
Yes, the key may work on your computer. But if you even glanced at the checking routine you would have found it gets the user name of the current person logged in. The key CANNOT be serial fished. You have to code a keygen. Perhaps it's not as "easy" as you thought?

As far as the actual crackme goes, I think I am almost done. I have half of the key, I just need to figure out the rest. At first I thought it was pretty easy, but it's a bit harder than I thought.

It's a nice routine, fun to figure out. Thanks for the nice crackme, als pom.
Skandal87
28. Nov 2009
Yeah qHF; you are right.. damn so my solution is wrong at the moment ;)

But it seems to get computername, not the username.

..workin on it ;)
Skandal87
28. Nov 2009
Hmm no i was wrong. Its the Username.

Nice number you have there as base alspom, remembers me of the good old days :P
lordram
29. Nov 2009
I'm quite sure you can make it work as a KeyGen by modifying the 00401393 to "PUSH ECX".

At least it seems to work...
sffs
04. Dec 2009
I want to keygen it,but it only worked on my computer.

How to get the '%lu' 's num in "RS-%ld-%lu"?
On my computer,the ' %lu' 's mu is 1243984
The keygen is not full correct.
=========================
procedure TForm1.Button1Click(Sender: TObject);

Var
User:pchar;
x:Cardinal;
Name,Username:String;
i,m,n,sn1,sn,sn2:Integer;

begin
x:=255;
GetMem(User,255);
GetUserName(User,x);
Username:=User;
Name:=name1.text;
m:=Length(UserName);
n:=Length(Name);
if n<5 then exit;
sn1:=0;
for i:=1 to m do
begin
sn1:=sn1+ord(UserName[i])+$186A0;
end;

sn:=sn1;
i:=0;

for i:=1 to n do
begin
sn:=sn+ord(Name[i])+$186A0;
end;


regnum.text:='RS-'+inttostr(sn+$7A69)+'-1243984';


end;

end.
=========================

Who can write a real solution,wait for your solutions.
qHF;
05. Dec 2009
I am having the same problem as sffs....
I have wrote the keygen for %ld but I cannot find where %lu is generated... can anyone throw some hints our way?
_pusher_
05. Dec 2009
Its a bug when he formats the values.. so second value is randomized.

this is what i think could be closest:

var
i, RegCode,BufferSize: dword;
Buff : array[0..100] of char;
StrName: string;
pUser:pchar;
begin

BufferSize:=0;
GetUserName(nil, BufferSize);
pUser := StrAlloc(BufferSize);
GetUserName(pUser, BufferSize);
RegCode:=0;

for i:=1 to Length(pUser) do
inc(RegCode,dword(ord(pUser[i-1])+$186A0 ));


StrName:=Edit1.Text;

if (Length(StrName)<5) then exit;
for i:=1 to Length(StrName) do
inc(RegCode,dword(ord(StrName[i])+$186A0 ));
inc(RegCode,$7A69);

wvsprintf(buff, 'RS-%d-%u',@LongInt(RegCode)); << bug here
Edit2.Text:=buff;
StrDispose(pUser);


end;

should maybe stop the submissions now :)
als pom
Author
11. Dec 2009
I have made a solution with keygen but it was refused i dont know why
_pusher_
12. Dec 2009
als pom: do notice the "bug here" and learn from it.
your submission to your own crackme, is not valid, the keygen generates same error... and thats why it would never work.
als pom
Author
10. Jan 2010
for the moderator pusher
the string wsprintf(buff,RS-%ld-%lu,@LongInt(RegCode));
pasharp
25. Sep 2010
I traced the stack change ,found that ,the "%lu" value are edi;

dlgFunc: // dlg callback proc
text:00401150 push ebp
.text:00401151 mov ebp, esp
.text:00401153 sub esp, 14Ch
.text:00401159 push ebx
.text:0040115A push esi
.text:0040115B push edi //"%lu" =this edi

but that the edi are assigned by Windows;
jE!
28. Sep 2010
then just grab that EDI-FROM-WINDOWS in your KGen
KAiN.iDC
04. Oct 2010
How is the serial generated ?
We can see that the serial is generated in 3 parts. The first and the third part of the serial are constants :
Part 1 = “RS-“
Part 3 = “-1243984”
How to Calculate the second part ?
The second part of the serial is separated in two Subparts for a total length of 7 characters.
The first SubPart is 4 Characters length and the second SubPart is 3 characters Length.
Let’s calculate the 1st Subpart :
We start from the constant integer 431 and we add 100 for each char.
Let’s calculate the 2nd part :
We start from the constant integer 656 and we add the ASCii value of each char to 656.
But over 5 chars, we have a problem the second part will be over 3 chars length.
So we take the last 3 numbers and add the first number to the Subpart1.
Example for ABCDEF Calculation :
1st subpart: = 431 + (Length(ABCDEF) *100)
= 431 + (6*100)
= 1031.
2nd subpart: = 656 + (Ord(A)+ Ord(B)+ Ord(C)+ Ord(D)+ Ord(E)+ Ord(F)).
= 656 + (65+66+67+68+69+70)
= 656 + 405
= 1061.
The Length of 1061 is over 3 chars, so we keep the right part “061” and add the left part (“1”) to the first
subpart.
SERIAL SECOND PART will be : 1031 +1 = “1032” and “061”.
And the final SECOND PART SERIAL will be “1032061”.
The final serial will be “RS-“+“1032061”+ “-1243984”  “RS-1032061-1243984”.
KAiN.iDC
04. Oct 2010
I forgot the user name !!! Sigh...
johnnycannuk
08. Nov 2010
Stepping through it now... looks like it takes your logged in username and uses it to determine something. My guess it generates part 3 since on my box it is NOT 1243984 - the last 3 digits are different.
johnnycannuk
09. Nov 2010
Ok, it looks like its generating a kind of Hash...I think I have it figured out, just need to write a python app to test the theory.

Very clever.
johnnycannuk
09. Nov 2010
pasharp,

It actually appears to be esi not edi on my box. edi is off by 3C (60) from the correct number.
johnnycannuk
09. Nov 2010
Hmm, not esi per se but at 0012F8D4 on the stack, which is the address esi contains.

Its always there right after the dialog func...
johnnycannuk
09. Nov 2010
Ok, looks like als pom is gone - his account is suspended and locked.

Anyone else have any luck determining the %lu - I know where to find it in my debugger, I can serial fish anything that is on my machine, but creating a keygen that works across machines? Not exactly easy.

Anyone get this yet?
HungrySNAKE
10. Nov 2010
guys, it's crack me right. IT MEANS YOU HAVE TO CRACK IT NOT TO FIND THE SERIAL OF IT '-.-
johnnycannuk
11. Nov 2010
Oh dear, HungrySNAKE appears not to have been reading the comments (no, apparently tried to crack this himself)

Have a look up at moderator _pusher_ 's comment above. This crackme is broken such that it cannot be keygened. It appears to rely on the fact that wsprinfA is not a safe function...it is grabbing the %lu off the stack and its value seems to be not just unique to each platform, but unique to each program.

It looks like he is calling wsprintfA with 2 format string place holders and only supplyong one value - meaning the second one is picking up that last value off the the stack (mine it is the value just above the return address) - the EBP. Meaning you can't access it from OUTSIDE the application and thus, cannot properly keygen it.

Of course if I am wrong and you DO have a keygen for this, feel free to share it and prove me wrong. I'd be happy to learn from it.

Otherwise, seriously, drop the snarky elite H4x0r crap...
B@zz!
19. Jun 2013
char* GenerateKey(char* Username)
{
int first_part = 0;
int second_part = 0;
char key[MAX_PATH];
char pcname[MAX_PATH];

GetUserName(pcname,MAX_PATH);

for(int i=0;i<strlen(Username);i++)
{
first_part += Username[i] + 10000;
}

for(int i=0;i<strlen(pcname);i++)
{
first_part += pcname[i] + 1000;
}

first_part += 31337;

printf(key,"RS-%ld-%lu",first_part,second_part);
return key

}

basic algo how i get the second one i dont know but it's static..
botanyaki
07. Apr 2014
Hint: crack without prejudice.
d4rK_r3v3rs3R
21. Dec 2014
I did a working keygen but I guess, reading those comments it will only works for me. But try it if you want (in the description is the file written in Python): http://youtu.be/a0AynC9ub6s


downloadbrowseAm0k's Am0k CrackMe 1

Download Am0kCM_1.zip, 25 kb (password: crackmes.de)
Browse contents of Am0kCM_1.zip

Just keygen it. Because i am new to cracking, i cant set the difficulty right so i m sry lol, but i think itll be hard ^^

Difficulty: 5 - Professional problem to solve
Platform: Windows
Language: C/C++

Published: 27. Sep, 2004
Downloads: 1176

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Solutions

Solution by Plasmator, published 28. sep, 2004; download (34 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseAm0k's Am0k CrackMe 2

Download Am0kCM_2.zip, 9 kb (password: crackmes.de)
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Just patch it so it will show the right messagebox :)

Difficulty: 1 - Very easy, for newbies
Platform: Windows
Language: C/C++

Published: 27. Sep, 2004
Downloads: 2309

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Solutions

Solution by zombie8, published 13. oct, 2004; download (2 kb), password: crackmes.de or browse.

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Solution by spenser21, published 01. oct, 2004; download (10 kb), password: crackmes.de or browse.

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Solution by terazen, published 28. sep, 2004; download (10 kb), password: crackmes.de or browse.

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Solution by LuCiFeR, published 28. sep, 2004; download (926 b), password: crackmes.de or browse.

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Solution by malfunction, published 28. sep, 2004; download (959 b), password: crackmes.de or browse.

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Discussion and comments

SimpleData
21. Jan 2009
Thanks for the CrackMe. It was easy. :)
vasto
14. Sep 2010
oi! easy one, good start for newbies like me, thx ;)
r-Evolution
15. Sep 2010
Even you edit the registers in cpu even you crack it dirty it is really easy!!!!God one if it is your first
streetlight
18. Dec 2013
Thanks, was a lot of fun.:D


downloadbrowseAm0k's amkTwo

Download amkTwo.zip, 16 kb (password: crackmes.de)
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//================================================================================================
// Project : amkTwo
// Version : 1.0
// Coder : amk
// Website : http://users.skynet.be/amk/ (Under Construction)
//================================================================================================

Objectives : - Make a valid KeyFile for your name
- Make a KeyFile Generator

Just one thing : No Patching ;D

Note : Sources are included in a passworded zip file. The password is the Key for "amkTwo" (without the quotes)

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: C/C++

Published: 10. Nov, 2005
Downloads: 749

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Solutions

Solution by bbvv, published 13. nov, 2005; download (22 kb), password: crackmes.de or browse.

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Discussion and comments

tommy
10. Nov 2005
finding the file that your program needs was very easy. Now, i just have to get the write code in that key file...
Ox87k
11. Nov 2005
yeah!
Name: Ox87k
Serial: 0SJJ00376633U611UU3D2233Q211QQ3D

very g00d j0b Am0k... i try to write a keygen =)
LethalMind
12. Nov 2005
This was very fun for me cause im a total noob.
My first level 2 crackme. Sorry, cant make a keygen.... Must learn to program in asm first :D
but anyways, heres is my serial:

Name: LethalMind
S/N: B55E84695G337748S6P7O55FF4EAC9F6

P.s. Even total noobs with no asm programming skills can have fun!!!!!!!!!!!
Nice work btw!
Am0k
Author
13. Nov 2005
i ll make an easier one next time ;)


downloadbrowseAm0k's Teh Nag

Download tehnag.zip, 11 kb (password: crackmes.de)
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The program is manualy packed, and protected with yoda's protector (http://yodap.cjb.net/)

Goal is to patch it like a bad boy.

Gl and hf ^^

Difficulty: 3 - Getting harder
Platform: Windows
Language: C/C++

Published: 20. Jan, 2005
Downloads: 989

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Solutions

Solution by pnluck, published 24. jan, 2005; download (2 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseAm0k's xCrackMe

Download xCrackMe.zip, 1 kb (password: crackmes.de)
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Make a KeyFile Generator for this crackme.
No patching allowed.

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: C/C++

Published: 12. Mar, 2006
Downloads: 724

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Solutions

Solution by znycuk, published 20. mar, 2006; download (13 kb), password: crackmes.de or browse.

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Solution by klks, published 20. mar, 2006; download (5 kb), password: crackmes.de or browse.

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Discussion and comments

l0calh0st
12. Mar 2006
Good work Am0k...but i don't have much knowledge about keyfileme's...i tried your's only thing i got was a keyname with"xCrackMe.key" with 164 bytes of data is required..but the data ..i m unable to find..maybe i should wait for someone to submit solution and try to follow it
Am0k
Author
14. Mar 2006
yea, i tried to make a harder one this time :D
The last KeyFileMe i've done was somehow easy, but it was bugged lol ^^
Anyway good luck with this :-)
znycuk
18. Mar 2006
Wow, got it...

That was a really cool crackme...
Very good work Am0k , thanx.
Too late to write a solution, and my keyfilegen still not finished, but works ;) .


downloadbrowseAm0k's xCrackMe 1.1

Download xCrackMe_1.1.zip, 2 kb (password: crackmes.de)
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Generate a KeyFile, and make a KeyFileGenerator :)
This one is harder then my other xCrackMe.

Good luck, and most important: have fun ;)

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: C/C++

Published: 17. May, 2006
Downloads: 537

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Solutions

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Discussion and comments

l0calh0st
22. Jul 2006
Is this thing solvable???.....The fread functions doesn't read the whole data from the keyfile...It skips the data when it read 1A from the file :?
EvOlUtIoN
23. Jul 2006
It is very strange because the fread doesn't work correctly...size to read is correct and is B0 bytes that is the right size of our string, but after fread call the stream read stops before..really don't know why!
Ox87k
15. Aug 2006
yep, same error for me... Am0k, could u fix this crackme? =)


downloadbrowseAm0r's CrackMe VB

Download CrackMeVB.zip, 7 kb (password: crackmes.de)
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This is Visual Basic crack me
You should make keygen
witch generate key by username

Difficulty: 3 - Getting harder
Platform: Windows
Language: (Visual) Basic

Published: 18. Jul, 2005
Downloads: 235

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Solutions

Solution by MACH4, published 03. sep, 2013; download (336 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseAmenesia's Basis#1 (Weger)

Download Basis#1.zip, 32 kb (password: crackmes.de)
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With Basis# Keygenmes (at least 2 others will come soon) i would exemplify some nice weakness...
The main goal is to understand and be able to explain how the attack works. That's why Basis# are open-source and the &quot;name&quot; of the weakness is given...

Difficulty: 3 - Getting harder
Platform: Unspecified/other
Language: C/C++

Published: 27. Jan, 2005
Downloads: 2044

Rating

Votes: 4
Crackme is nothing special.

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Solutions

Solution by bLaCk-eye, published 16. mar, 2005; download (54 kb), password: crackmes.de or browse.

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Solution by chendler, published 17. feb, 2005; download (96 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseAmenesia's Basis#2 RSA - Wiener

Download Basis#2.zip, 39 kb (password: crackmes.de)
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With Basis# Keygenmes (at least 2 others will come soon) i would exemplify some nice weakness. The main goal is to understand and be able to explain how the attack works. That's why Basis# KgMes are open-source and the &quot;name&quot; of the weakness is given...

Difficulty: 3 - Getting harder
Platform: Unspecified/other
Language: C/C++

Published: 27. Jan, 2005
Downloads: 2183

Rating

Votes: 5
Crackme is quite nice.

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Solutions

Solution by bLaCk-eye, published 16. mar, 2005; download (54 kb), password: crackmes.de or browse.

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Solution by RedSpider, published 15. mar, 2005; download (43 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseAmenesia's Howl v1.0

Download howl_ckme.zip, 5 kb (password: crackmes.de)
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Not really hard ... :p

Difficulty: 6 - Hard, for very professionals only
Platform: Unspecified/other
Language: Unspecified/other

Published: 19. Oct, 2003
Downloads: 2772

Rating

Votes: 4
Crackme is good.

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Solutions

Solution by bLaCk-eye, published 13. jun, 2004; download (17 kb), password: crackmes.de or browse.

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downloadbrowseAmenesia's TKM! trial 2004

Download tkm_trial2004.v2.zip, 43 kb (password: crackmes.de)
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Crypto-KeygenMe

Difficulty: 7 - Very hard
Platform: Unspecified/other
Language: Unspecified/other

Published: 09. Jul, 2004
Downloads: 1843

Rating

Votes: 3
Crackme is quite nice.

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Solutions

Solution by divinomas, published 23. jan, 2005; download (46 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseAmnon's Crackme_1 by Amnon

Download Crackme_1.by.Amnon.HTBTeam.zip, 45 kb (password: crackmes.de)
Browse contents of Crackme_1.by.Amnon.HTBTeam.zip

All needed information you can find in INFO file

Difficulty: 3 - Getting harder
Platform: Windows
Language: Assembler

Published: 15. Jan, 2007
Downloads: 445

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Solutions

There are no solutions to this crackme yet. Have you solved it? Please write a tutorial and submit it here!

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Discussion and comments

ewerton
17. Jan 2007
i can not run =/

(sorry for me stupid english :x)
zairon
Moderator
17. Jan 2007
Hint: look at the nfo file.
ewerton
18. Jan 2007
hehe =]
okay okay.

go to job @_@'


downloadbrowseanalyst's keygenning4newbies Crackme 1

Download k4n.zip, 30 kb (password: crackmes.de)
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Name/Serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 24. Sep, 2002
Downloads: 4212

Rating

Votes: 4
Crackme is nothing special.

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Solutions

Solution by Bonez92, published 01. jul, 2008; download (16 kb), password: crackmes.de or browse.

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Solution by FxN, published 19. jun, 2004; download (5 kb), password: crackmes.de or browse.

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Solution by stac, published 05. oct, 2003; download (2 kb), password: crackmes.de or browse.

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Solution by _pusher_, published 24. sep, 2002; download (6 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseanalyst's keygenning4newbies Crackme 2

Download k4n2.zip, 31 kb (password: crackmes.de)
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Name/Serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 24. Sep, 2002
Downloads: 2886

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Solutions

Solution by Bonez92, published 15. jul, 2008; download (18 kb), password: crackmes.de or browse.

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Solution by dabernd2, published 14. oct, 2002; download (10 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseanalyst's keygenning4newbies Crackme 3

Download k4n3.zip, 10 kb (password: crackmes.de)
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Name/Serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 24. Sep, 2002
Downloads: 2620

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Solutions

Solution by Devine9, published 28. jan, 2003; download (6 kb), password: crackmes.de or browse.

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Solution by yar0n7, published 27. sep, 2002; download (44 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseanalyst's keygenning4newbies Crackme 5

Download k4n5.zip, 30 kb (password: crackmes.de)
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Keyfile

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 24. Sep, 2002
Downloads: 3563

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Solutions

Solution by _pusher_, published 17. sep, 2004; download (7 kb), password: crackmes.de or browse.

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Solution by bLaCk-eye, published 03. aug, 2004; download (5 kb), password: crackmes.de or browse.

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downloadbrowseanalyst's keygenning4newbies Crackme 6

Download k4n6.zip, 168 kb (password: crackmes.de)
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Name/Company/Serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 24. Sep, 2002
Downloads: 3128

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Solutions

Solution by boonz, published 01. aug, 2006; download (36 kb), password: crackmes.de or browse.

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Solution by yar0n7, published 27. sep, 2002; download (43 kb), password: crackmes.de or browse.

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downloadbrowseanalyst's keygenning4newbies Crackme 7

Download k4n7.zip, 39 kb (password: crackmes.de)
Browse contents of k4n7.zip

Name/Serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 24. Sep, 2002
Downloads: 2649

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Solutions

Solution by yar0n7, published 25. sep, 2002; download (56 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseAnarchy2k3's CrackMe #1 - Easy Timers - By Anarchy2k3

Download CrackMe_#1_-_Easy_Timers_-_Anarchy2k3.zip, 266 kb (password: crackmes.de)
Browse contents of CrackMe_#1_-_Easy_Timers_-_Anarchy2k3.zip

This crackme is coded with Delphi 2009.

The verification routine use one or two timers ;-)

With a good debugger or little lucky it's very simple !

Have a good day !

Anarchy2k3 - July 2009

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: Borland Delphi

Published: 13. Jul, 2009
Downloads: 825

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Solutions

Solution by deurus, published 07. aug, 2009; download (375 kb), password: crackmes.de or browse.

deurus has rated this crackme as nothing special.

Solution by Vallani, published 01. aug, 2009; download (3 kb), password: crackmes.de or browse.

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Discussion and comments

wolfhack
13. Jul 2009
I used ResHack to solve this
intruder
15. Jul 2009
lol, reshack. I patched it so it works with user:"Thom Collins" and pass "5694-5378". Can't figure out the rest >_>
DigitalAcid
16. Jul 2009
Did you use a DeDe Protection ?
Because it doesn't disassemble in DeDe =(.

I have looked at it with Olly and think I know what's going on, but cba to solve it.


downloadbrowseAnasazi's Density

Download Density.zip, 7 kb (password: crackmes.de)
Browse contents of Density.zip

- Density, Lake'99

KeygenME/PatchME

Rules:

1. No rules, either patch it or keygen it.

Info:
- It's been a year since I released a crackme,
Density, released on my 19th birthday.

- Have fun.

] Anasazi / Lake'99
] WarpZone.se/update ( Give review if you want to. )

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: C/C++

Published: 29. Apr, 2008
Downloads: 499

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Solutions

Solution by costy, published 02. may, 2008; download (110 kb), password: crackmes.de or browse.

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Discussion and comments

costy
30. Apr 2008
Happy Birtday Anasazy. I tried to find a valid serial but It's difficult so I patched it.
Now I send the solution.
Could you publish the source??
Anasazi
Author
30. Apr 2008
Thank you, didn't thought it was going to get cracked that fast but I guess my next crackme must be alot harder lawl.
Anyway, source will be available on my forum.
HMX0101
30. Apr 2008
@costy: its not so hard, just take a look to scanf and strcmp Apis ;)
@Anazasi: H-Bday, enjoy your day ;)
costy
01. May 2008
I hope that your next crackme wont be too difficult. :-)

I didn't understand the strcmp function so I changed the jump after strcmp. It always compares "%d" with "640".
Anasazi
Author
02. May 2008
Are you at the right cmp? Didn't anyone have a problem with the anti olly-/ida system? :/
The serial output after the algorithm-/inline assembly is in unicode tho.
costy
02. May 2008
Anasazi... I was at the right cmp.
Infact I wrote a solution and It was approved.
The anti-debug sistem isn't a problem but I can't understand the cmp. So I patched it.
I hope you will publish the source. Why isn't your forum in your profile?
Anasazi
Author
02. May 2008
Ah, I see. Sorry lol.
nice shit, source will be published in 5 sec.
HMX0101
03. May 2008
Anasazi, do you test my keygen?.. it works? =S
costy
03. May 2008
I can not find the source in your forum. So I can't improve my skills. Really BAD.
Anasazi
Author
03. May 2008
lol, costy, it's released under WarpZone - Releases. You gotta become a member before you can see it, and don't forget to comment.
@HMX, Ima check once I get back to my computer.


downloadbrowseAnasazi's EAX-56

Download EAX-56.zip, 7 kb (password: crackmes.de)
Browse contents of EAX-56.zip

Time for another one, this one has been well coded and I hope
you enjoys it. It has a very special algorithm ;)


- No patching.

- No selfkeygenning.

- Solution = Tutorial + Keygen.

Difficulty: 3 - Getting harder
Platform: Windows
Language: C/C++

Published: 19. Dec, 2006
Downloads: 439

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Solutions

Solution by DaBookshah, published 21. dec, 2006; download (36 kb), password: crackmes.de or browse.

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Discussion and comments

DaBookshah
21. Dec 2006
This is too easy for level 3. Also, divide by zero errors are a problem
DaBookshah
21. Dec 2006
Also, i should think the divide by zero errors would get more likely the longer the name-length. But I have done a keygen.
Anasazi
Author
21. Dec 2006
Pretty nice, you gotta agree that the switch statement thing was a good idea? Hehe... Working on a new one.
DaBookshah
23. Dec 2006
You need to check for errors next time, and I thought the switch statement was weak, go with something more mathematical next time. Or maybe write one in asm.


downloadbrowseAnasazi's Extremely Hard KeygenME

Download KeyGenME.zip, 5 kb (password: crackmes.de)
Browse contents of KeyGenME.zip

Extremely Hard Raw Coded KeygenME.

Rulez;
- No patching just make a valid keygen and a tutorial ;)

Difficulty: 1 - Very easy, for newbies
Platform: Windows
Language: (Visual) Basic

Published: 04. Nov, 2006
Downloads: 859

Rating

Votes: 7
Crackme is quite bad.

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Solutions

Solution by costy, published 10. jul, 2008; download (151 kb), password: crackmes.de or browse.

costy has rated this crackme as quite nice.

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Discussion and comments

red477
04. Nov 2006
Is there something I missed? Just an api call to get some value and then a little algebra?

Activated!
HMX0101
05. Nov 2006
This crackme must be level 1... because its damn easy...
Anasazi
Author
06. Nov 2006
Sorry mates, I screwed on this one ;)
SaXoN
06. Nov 2006
Ah level 1, something for me :D
BaKaE
07. Nov 2006
I got an error code '6'

whats wrong ?
Anasazi
Author
07. Nov 2006
When you get the error?
BaKaE
08. Nov 2006
after typed a number length is equal (just numbers)

and hit the check button

same thing in smartcheck >> same error
Ank83
13. Nov 2006
This is a bad crackme. It;s not working for me. Overflow. Try declaring with long, not integer.

Best Regards
Ank83
ProTreeBrain
14. Nov 2006
I rather dont try to crack this. I got 3 error codes. Try repair this crackme and upload. It'll be better.
ProTreeBrain
14. Nov 2006
And again. I got another error. Please if you can upload the source code. I am notvery interest in Visual Basic, but I try repair it.

Thanks.
Anasazi
Author
17. Nov 2006
This one requires a C: drive. I'm making new better newbie crackmes.
Ebba
17. Nov 2006
lol.. hope you sucess on making great ones~ good luck ~
costy
09. Jul 2008
The Overflow error is only on some computers. I understand why and I have written a solution with a keygen and an explaination about the error. The crackme can't run on all computer.


downloadbrowseAnasazi's Hawkeye

Download Hawkeye.zip, 820 kb (password: crackmes.de)
Browse contents of Hawkeye.zip

Hawkeye 2007
==========

Level: 3/10

Rulez:
- No selfgenerating
- No patching

Others:
Ok, this time I've put alot of effort on the system, hope you'll enjoy it.

Have phun.
// Anasazi

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: C/C++

Published: 02. May, 2007
Downloads: 1364

Rating

Votes: 5
Crackme is boring.

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Solutions

Solution by Crosys, published 08. may, 2007; download (118 kb), password: crackmes.de or browse.

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Solution by profdracula, published 06. may, 2007; download (47 kb), password: crackmes.de or browse.

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Discussion and comments

Scortile
05. May 2007
Nice crackme. Too bad finding the correct serial is sooooo easy, and making a keygen for this one would basically mean copy a part of the code and display serial instead of bad boy message.
Anasazi
Author
05. May 2007
Thx, yeah, but that would be selfgenning which isn't allowed ;)
HMX0101
05. May 2007
Fun part is knowing which variables you need to put in keygen, because algo is simple ;P

Anyway, i'm waiting for a more harder and interesting challenge from you :)
Anasazi
Author
05. May 2007
A'right, but they're getting harder aren't they? :P
I don't like implementing done algos like RSA/MD5/SHA or such, I wanna code ém myself =)
Next one will definately be alot harder.
profdracula
06. May 2007
There are total 14-variables to be put, mostly init-to-0 and a variable contains constant-value used in key. Anyway, keygen submitted 3-days ago, still waiting for being accepted.


downloadbrowseAnasazi's SuperSerialMe

Download Super.Serialme-2007.zip, 130 kb (password: crackmes.de)
Browse contents of Super.Serialme-2007.zip

Super Serial Me 2007 - Anasazi
This is an advanced serialme created by Ananas.
- Rulez;

- No rulez, just crack it :)

Difficulty: 3 - Getting harder
Platform: Windows
Language: C/C++

Published: 15. Aug, 2007
Downloads: 1263

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Solutions

There are no solutions to this crackme yet. Have you solved it? Please write a tutorial and submit it here!

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Discussion and comments

ZeroCoder
08. Feb 2008
sux
serial: 1024
and crackme starts to press many keys

ps: cmp [dec2hex(serial)],400h


downloadbrowseAnasazi's Uncrackable

Download Uncrackable.zip, 3 kb (password: crackmes.de)
Browse contents of Uncrackable.zip

This one is written in pure VB6, crack this and you're really good ^^

Difficulty: 5 - Professional problem to solve
Platform: Windows
Language: (Visual) Basic

Published: 23. Oct, 2006
Downloads: 4458

Rating

Votes: 3
Crackme is quite bad.

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Solutions

Solution by fjlj, published 31. oct, 2006; download (3 kb), password: crackmes.de or browse.

fjlj has rated this crackme as boring crap.

The submission of solutions is closed.

Discussion and comments

acroneshadow
16. Feb 2010
Yay that was fun! great work!


downloadbrowseAnasazi's Verbatim

Download Verbatim.zip, 494 kb (password: crackmes.de)
Browse contents of Verbatim.zip

VERBATIM
-==========-

:: nFO

Rank.: 3/10
Lang.: C++
Coder: Anasazi

- Well coded KeygenME
- Took me some sweet time to
code it since I really put some
hard effort on coding it.
- It uses a really neat trick which I hope you won't notice

- Right Click To Minimize

:: Rules

- No patching
- Solution = Tutorial + Fully working KeyGen

:: End

Hope you'll enjoy it!
Please comment it, especially the GUI

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: C/C++

Published: 02. Mar, 2007
Downloads: 616

Rating

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Solutions

Solution by Zirux, published 10. apr, 2007; download (488 kb), password: crackmes.de or browse.

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Solution by boonz, published 07. mar, 2007; download (35 kb), password: crackmes.de or browse.

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Discussion and comments

Crosys
02. Mar 2007
Level 3?
Damn easy one...
Anasazi
Author
03. Mar 2007
Then where's your solution?
I hardly belive it's 'that' easy, and it's a 3/10 or a 2/9.
Crosys
03. Mar 2007
You better check ARTeam forum -> ;)
Anasazi
Author
03. Mar 2007
Noes! You found it, hoped ya would'nt notice the trick I used, nice work =)
Really like you keygens cuz of the music you put in ém. <.<


downloadbrowseandimonk's keygenme 1

Download amkgme1.zip, 130 kb (password: crackmes.de)
Browse contents of amkgme1.zip

name/serial (vb)

Difficulty: 6 - Hard, for very professionals only
Platform: Unspecified/other
Language: (Visual) Basic

Published: 13. Sep, 2001
Downloads: 2696

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Solutions

Solution by figugegl, published 13. sep, 2001; download (14 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseandrewl.us's Capriccio

Download capriccio.zip, 61 kb (password: crackmes.de)
Browse contents of capriccio.zip

=-----------------------------=

I present "CapRiCcio" keygenme.

Some example user/serial pairs:

crackmes.de - 7B58752389D0333E
numernia - 0B1080D35AC5C4D5
cyclops - 814D355DA7A1B5D1
abcdef - A906EDBA84A6D5AE

=-----------------------------=

Difficulty: 4 - Needs special knowledge
Platform: Windows
Language: C/C++

Published: 03. Aug, 2009
Downloads: 627

Rating

Votes: 4
Crackme is nothing special.

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Solutions

Solution by Vallani, published 07. aug, 2009; download (210 kb), password: crackmes.de or browse.

Vallani has rated this crackme as quite nice.

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Discussion and comments

papanyquiL
04. Aug 2009
Solved. I'll send in tut tomorrow. username - abcdef / password - A906EDBA84A6D5AE

;D
artif
04. Aug 2009
CapRiCcio 64 to reverse!
Vallani
05. Aug 2009
Impressive papanyquiL.^^

I've done the keygen but now I'm too tired to write the solution, so I think, because the author andrewl also post some, to post addational user/serial combos:
andrewl: 879FD586E7E403A2
papanyquiL: 2EB59FC14E5374C4
Vallani: 67E851E7178F8419

And maybe a general hint for those, who want to solve it but don't know how:
You've to go forward from the start, following the smooth path until you come to the precipice and you've also to go backward from the end and here, where only who searchs wil find the way, you go until you come to the other end of the precipice. Then you'll be able to build the bridge.

That's sound like a riddle, doesn't it? :)

Greetings
Vallani
andrewl.us
Moderator
05. Aug 2009
WOW Vallani WOW WOW! I couldn't keygen my own crackme this fast!! Sending PM!
obnoxious
05. Aug 2009
Lets get building that bridge ;) But theres a saying it requires considerable skill to build a bridge


*********
*********
8888/ ****************
8888 ****************
8888 \8888
8888 8888
8888 8888
8888 8888
8888 8888
obnoxious
05. Aug 2009
Damn my bridge diagram got screwed. ;)
simonzack
Moderator
06. Aug 2009
lol crc
did you get the inspiration from that last crc crackme?
forgot what it was
i only tried it today, cause i thought GF meant Galois field
...
didn't dare try the crackme
andrewl.us
Moderator
06. Aug 2009
Yes I was going to reveal it:

It is sequel to push-the-pusher crackme by upb (made with his permission). I liked his idea so much it was worth extending:

+ 64-bit divider instead of 32-bit
+ serial modifies data never on endpoints

Yes simonzack you are right about GF. A CRC just calculates which residue class (mod the CRC polynomial) that some input data is a member of!

Anyways, it's solved now, with fast methods I didn't foresee!! No need to "bump" the thread any more. Something more difficult will come soon......
The So;X
08. Aug 2009
Once again u did it.... keep on :)


downloadbrowseandrewl.us's Crackme #1

Download crackme1.zip, 1 kb (password: crackmes.de)
Browse contents of crackme1.zip

An easy crackme for fun. Just find the serial that displays "WINNER" message. Invalid serials will display "NOPE" message.

Compiled with visual studio - no superfluous libraries, no optimization.

Difficulty: 1 - Very easy, for newbies
Platform: Windows
Language: C/C++

Published: 22. Feb, 2008
Downloads: 1331

Rating

Votes: 5
Crackme is boring.

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Solutions

Solution by Encrypto, published 24. feb, 2008; download (2264 kb), password: crackmes.de or browse.

Encrypto has rated this crackme as boring crap.

Solution by Iñaki Viggers, published 24. feb, 2008; download (2 kb), password: crackmes.de or browse.

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Solution by DigitalAcid, published 24. feb, 2008; download (3 kb), password: crackmes.de or browse.

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The submission of solutions is closed.

Discussion and comments

0xdie
22. Feb 2008
Well, man. I've had a problem with your crackme. When i click [X] to close, it's not exit =.=". Did you forgot calling ExitProcess API in your program?
andrewl.us
Moderator
22. Feb 2008
Hey oxdie, sorry that it won't close. I should have tested it on more machines. It works on my XP 32-bit machine. Anybody else having problems?
0xdie
22. Feb 2008
Sorry, with my bad English i couldn't say more .But I mean that when i click [X], the dialog is closed but the process still there. You can check with Task Manager or Process Explorer or something else...
DigitalAcid
22. Feb 2008
No problems here, got xp sp 2.
0xdie
23. Feb 2008
Yeah, i've tested in virtual machine with xp sp2 and it 's normal :D. But why i've problems in real machine? Of course, i use xp sp2 (32-bit) :(.
Sorry about this :(.
noukeys
23. Feb 2008
I've not problems. It's tooeasy. Solved in 30 sec.
cli3nt
23. Feb 2008
Work fine in win xp sp2, ia32.
It's really easy one and that's for sure since I haven't crack anything for almost 1,5 year and this was easy for n00b like me :)
KpocoboK
24. Feb 2008
Sorry im kinda new if i nop some code its a bad solution?
KpocoboK
24. Feb 2008
p.s: crackme works fine on my vista 32 (no procces problem as 0xdie has)
cli3nt
24. Feb 2008
KpocoboK: It depends but generally Tutte le strade portano a Roma ;)
ishikawa
24. Feb 2008
Works fine, winxp with sp2.
Very easy.
The So;X
24. Feb 2008
Nice Move U Got
Encrypto
24. Feb 2008
ive given my video tut in. :)
andrewl.us
Moderator
24. Feb 2008
Nice work you guys :) I especially liked the video tutorial Encrypto :) Yes it was easy, but that was the point, hope you enjoyed!
Sinok
29. Feb 2008
Very nice crackme :)
Maybe I'll post a solution..
Good job andrewl.
Sinok
29. Feb 2008
Posted my solution, hope moderators will accept it :)
Sinok
04. Mar 2008
I got rejected :o
MulleDK13
09. Jun 2008
Mine doesn't shut either.. The dialog disappears, but crackme1.exe keeps running in the task manager.

System: Windows Vista Home Premium 32 Bit
Toxide
17. Sep 2008
An easy one, but nevertheless a fun one. I was actually looking for an algo, for making a keygen :') Should've read the description better hehe.

Vista Home Premium 32bit, no running process after closing the CrackMe!
evaboy
18. Apr 2014
Serial:8272369
Good crackme.
aldeid
05. Dec 2015
My solution posted here: https://www.aldeid.com/wiki/Solution-andrewl-us-Crackme-1
andrewl.us
Moderator
10. Dec 2015
aldeid: the goal of this site is to collect solutions HERE, please submit for archival reasons


downloadbrowseandrewl.us's Crackme #2

Download crackme2.zip, 1 kb (password: crackmes.de)
Browse contents of crackme2.zip

Another simple one for fun - find the the only valid serial.

Compiled small with no extra library and no optimization.

Difficulty: 1 - Very easy, for newbies
Platform: Windows
Language: C/C++

Published: 22. Feb, 2008
Downloads: 1254

Rating

Votes: 6
Crackme is boring.

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Solutions

Solution by hound, published 24. feb, 2008; download (2 kb), password: crackmes.de or browse.

hound has rated this crackme as boring crap.

Solution by DigitalAcid, published 24. feb, 2008; download (2 kb), password: crackmes.de or browse.

DigitalAcid has not rated this crackme yet.

Solution by noukeys, published 24. feb, 2008; download (1 kb), password: crackmes.de or browse.

noukeys has rated this crackme as boring.

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Discussion and comments

noukeys
23. Feb 2008
To easy, i solved in 1 minute.
-Lord Virus-
23. Feb 2008
Wow. You must be master.! man...:))
synak
24. Feb 2008
Interesting valid serial. Not my thing but that's OK. :) Thanks for the quick & easy crackme.
KpocoboK
25. Feb 2008
Why i cant vote? Anyway i like it. Hope to see more hard next.
MulleDK13
02. Mar 2008
Are there any cracking tutorials for stuff like this... I programme a lot, but don't have much knowledge on cracking or reverse engineering.
DigitalAcid
03. Mar 2008
Don't want to spam or anything, but lena151 has a nice 40 part tutorial on tuts4you.
Gamer
04. Mar 2008
I tried to crack this crackme with those tutorials, but I got stuck on how to get further at some points, I don't know what to do to get at the next page displayed.
If anyone could make a video or a more detailed solution, I'd be very thankful.
DigitalAcid
04. Mar 2008
Practice makes perfect.
Maybe try some other ones first.
Muns
28. Mar 2008
Yeh, you get the hang of how things work after seeing it a few times. Don't let it dishearten you :). thanks for crackme, done in under 5 mins.


downloadbrowseandrewl.us's Russian Dolls

Download rdolls.zip, 107 kb (password: crackmes.de)
Browse contents of rdolls.zip

"Russian Dolls" CrackME

You will quickly find good boy and bad boy message.

The decision is based on one call. No decoys.

The call is to the "Russian Dolls" verification function.
(Russian dolls are those dolls where there's like one inside
another, and one inside that, and so on...)

You'll quickly see the similarity of how this verification
function executes and the dolls that the crackme name refers
to.

Write a keygen and a tutorial. I can think of a few ways to make this protection much nastier, let me know your ideas after you solve it.

Difficulty: 3 - Getting harder
Platform: Windows
Language: Assembler

Published: 28. May, 2008
Downloads: 961

Rating

Votes: 5
Crackme is quite nice.

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Solutions

Solution by red477, published 13. mar, 2008; download (6 kb), password: crackmes.de or browse.

red477 has rated this crackme as quite nice.

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Discussion and comments

DigitalAcid
01. Mar 2008
Oh man, this crackme seemed to be hard (longest decryption routine i have ever seen O.o), but i easily found a serial trough trial and error.
I don't know if it was your intention to be solved like that.
Could have made a bruteforce loop, but i bet that would have taken longer ;).
Will write a quick tutorial.
andrewl.us
Moderator
02. Mar 2008
DigitalAcid: dang, if a key can be found by trial and error then I made some bad assumptions and didn't test enough... would you mind messaging me your key and letting me check it out?
Sinok
02. Mar 2008
OMG the decryption routine is so long, and in the end it crashed o.0
I'll look into it later o.0
Sinok
02. Mar 2008
And btw, I guess this is a loop
for(int i=0;i<100;i++)
CheckIfPasswordIsRight();

Yeah, that WOULD be nasty.
aMiGo
03. Mar 2008
I've found the smallest dolly. Hehe..
2Sinok: a bit more complicated:

int correctTable[] = {0,0,0,0,0,0,0,0};
for (int i = 0; i <= 0x600; ++i)
{
if (rand()%2)
{
int k = rand() % 8;
if (isCorrect(serial[k], k))
{
correctTable[k] = 1;
}
}
else
{
if (false)
{
.....
}
}
}
if (correctTable == {1,1,1,1,1,1,1,1})
MessageBox(goodguy);
else
MessageBox(badguy);
Sinok
04. Mar 2008
Yeah sorry I had something else in mind ;x
DigitalAcid
14. Mar 2008
No offense, but red477's keygen only uses 2 valid serials to make a combination wich results in a valid serial.
However, there is at least 1 more valid serial , for example:
daaCaebb

Ps: the russian dolls are called matrousjka or matroushka =).
Ox87k
14. Mar 2008
@DigitalAcid:
For me your serial "daaCaebb" doesn't work.
And for the name of russian dolls take a look here:
http://commons.wikimedia.org/wiki/Matryoshka

Russian: Матрёшка, Матрешка
English: Matryoshka
Sinok
16. Mar 2008
I guess DigitalAcid is russian, I know russian too and it's Matrushka, english translation is no good here lol
DigitalAcid
16. Mar 2008
No, i'm not russian =).
I just knew the word.
There was a tv serie called matrousjka's here. (http://fotos.marktplaats.nl/kopen/d/52/2RLw/ynHpXLxaQErsaYzdg==.jpg)
Anyway, can somebody try that key ?
It works for me and i didn't patch or anything.
andrewl.us
Moderator
16. Mar 2008
red477's solution is more than sufficient - and it generates all 256 possible intended keys. I was impressed by the use of IDA script (must learn it myself!)

I couldn't get "daaCaebb" to work. If there are keys outside of the intended 256 size set, please let me know what they are as I want to see where I went wrong.
DigitalAcid
18. Mar 2008
Actually, i started from aaaaaaaa and then changed 1 digit at a time...
So maybe there was still a non-zero value somewhere instead of a 0.
alpha-rhythm
25. Mar 2008
I checked all the possible combinations - I wrote a small C++ program to decrypt and track all the possible keys - and I didi not find ahything except for known 2 keys.
DigitalAcid
29. May 2008
Has this crackme been updated ?
Because it shows in the recent submissions...
neo_40
29. May 2008
REALLY EASY
DON'T KNOW WHY YOU GAVE IT LEVEL 3
obnoxious
30. May 2008
@neo_40 if it were that easy how about you post a tutorial n a keygen!!!!!!!!!!!!


downloadbrowseandrewl.us's SDDecoder Junior

Download sddjr.zip, 51 kb (password: crackmes.de)
Browse contents of sddjr.zip

SDDecoder keygenme by gbe32241 is a truly amazing work, worth anybody's examination.

In this knock-off, the strengthening factors are removed, namely:

- the input and output transforms are separated from the core function
- the key size is reduced from 128 bits to 64 bits
- some other minor simplifications

Here is a list of example codes.

0B9406A6A5CF8D68
7C2E3DC7A9357094
04FEB466BEDCDB92
21E55E6A6B309F70
A8FAC8E4DF56C998
D597329D34D0ED3A
33D0A0EA1092124B
28AC66DD28697C52
1E380939AF1BF545
4FC1636FB7EEAFB0
93B2C52E2B77BD8F

Can you keygen the rest?

Difficulty: 4 - Needs special knowledge
Platform: Windows
Language: C/C++

Published: 09. Sep, 2009
Downloads: 587

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Solutions

Solution by Numernia, published 25. nov, 2009; download (152 kb), password: crackmes.de or browse.

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Discussion and comments

z1hye
05. Oct 2009
F365E2149BEA87F1
This is a key for for signature 0x0DEAD

Nice crackme :)
Hf.


downloadbrowseandrewl.us's SDDecoder Junior v2

Download SDD_JR_V2.zip, 162 kb (password: crackmes.de)
Browse contents of SDD_JR_V2.zip

In this sequel to SDDecoder Jr. I've tried to find a
median between no security and full security for the
sake of study.

Included is full source code for the license scheme
kit used to produce these challenges (see .\SDD64\*).

challenge1 has only an input transformation

valid (but blacklisted) keys:

F4ED8D55792448DF (id:3)
65D58950D8AFE39D (id:4)
A8DED2168D7FCE7F (id:5)
2445784633EDF482 (id:6)

challenge2.exe has only an output transformation

valid (but blacklisted) keys:

2BAB59703A1E1199 (id:2)
A780FC96612C92EE (id:5)
776959450C0B4538 (id:6)
0BF10745067805FA (id:7)

Special greets to fellow crackmes.de mods, especially Swedish boy!

MODERATOR NOTES (jan13_2010): level reduced 5->2 since attack details made public

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: C/C++

Published: 08. Dec, 2009
Downloads: 519

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Solutions

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Discussion and comments

Dionosis
04. Jan 2010
Hi andrewl,

I'm just looking at your challenge and... It's an original one but it looks very interesting :)

However I think there is a little error in Challenge 1 files (maybe "public_key.h") beacuse when I compile it with VS9 I don't obtain the same decoded key than with the provided decoder.exe.
I tryed it twice.
Challenge 2 is working fine.

Maybe I'm doing something wrong and it's not a real problem for the process understanding, but it's impossible to make a valid keygen in this configuration.

However, I'm a newbie but I'll try to understand it.
andrewl.us
Moderator
05. Jan 2010
Hi, you are right, I mixed up the header files. Simply dump the __int64's starting at 40C000 to the lsvec_obf[] array.


downloadbrowseandrewl.us's Shmoocon 2010 Crypto Challenge Pack

Download GiTS_2010_Crypto_Crackmes.zip, 185 kb (password: crackmes.de)
Browse contents of GiTS_2010_Crypto_Crackmes.zip

These are the crypto challenges from Shmoocon
2010's "Ghost in The Shellcode" CTF event:

http://ghostintheshellcode.com/
http://www.shmoocon.org/gits.html

Goal was to make algos that can be grasped
quickly (minimal reversing), but remain
challenging to keygen.

crypto3.exe: difficulty 2
crypto5.exe: difficulty 3
crypto1.exe: difficulty 3
crypto2.exe: difficulty 4
crypto4.exe: difficulty 6-7

They only had room for four, so crypto4 was
left out, being the most difficult. I will
give you some major clues on it: there is no
scheme in the system, no trapdoor. It's pure
math. The function is a bijection. Remember
that an extension field is a vector space
over its ground field. Source is provided
also.
Clue #2: google: hidden monomial
Clue #3: remember no trapdoor here! this is SIMPLEST case!

Example codes are given in each respective
crackmes' GUI.

Keygen for them all is only solution!

--
andrewl
jan26_2010
http://crackmes.de
http://andrewl.dreamhosters.com

Difficulty: 6 - Hard, for very professionals only
Platform: Windows
Language: C/C++

Published: 08. Feb, 2010
Downloads: 953

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Solutions

Solution by Numernia, published 10. aug, 2010; download (290 kb), password: crackmes.de or browse.

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Discussion and comments

Xspider
10. Feb 2010
nice one andrewl :) waiting for a solution :D
frank2
01. Mar 2010
oh man, thank you for posting these here! I didn't have enough time to fully rev crypto3 while at Shmoo and -loved- the design of it. looking forward to breaking these things later. :)
alex_ls
12. Aug 2010
Numernia, it's a very nice work!!! I thought that crypto4 won't be reversed for a long time!
jB_
12. Aug 2010
Level 4 fully reversed (solved 6 months ago):
http://jardinezchezjb.free.fr/crackmes.de/shmoocon/

It was a very interesting crackme.
alex_ls
12. Aug 2010
I have been surprised twice for a day!!! jB_, really cool job, I think you are pro!!!!!! Why don't you post your solutions to the really cool crackmes?
Numernia
Moderator
12. Aug 2010
thank you for your positive comment alex_ls =)

jB, it would be interesting with some text about the theory around your solution of level 4, looks really nice way to solve the problem.

best regards
andrewl.us
Moderator
13. Aug 2010
thanks for solving numernia, good work as always - first published solution! congrats!

magma+grobner method is most dangerous by far!
an alternative method is discussed on rcejunk but is specific to this type of system
kilobyte.asm
14. Aug 2010
well done Numernia; Long time!


downloadbrowseandrewl.us's Shmoocon 2011 Crypto Challenge Pack

Download GiTS_2011_Crypto_Crackmes.zip, 22 kb (password: crackmes.de)
Browse contents of GiTS_2011_Crypto_Crackmes.zip

Shmoocon 2011 Cryptography Challenge Pack
-------------------------------------------------------------------------------
http://www.ghostintheshellcode.com/
https://www.shmoocon.org/ghost_in_the_shellcode
-------------------------------------------------------------------------------
These are the cryptography challenges submitted to the Shmoocon 2011 "Ghost In
The Shellcode" organizers for potential use in the CTF event and December
qualifier.
-------------------------------------------------------------------------------
Challenges were made with a few features to facilitate analysis:
1) open source (skip the disassembly->algorithm translation phase)
2) calculations, input, output are all in decimal, allowing easy entry of
values between external tools
-------------------------------------------------------------------------------
Python?
1) seems program logic is easy to understand even without knowing Python
2) debugger is easy to use (python -mpdb chall1.py) but you probably won't need
it
3) installs nearly everywhere
4) tested with 2.6.5
-------------------------------------------------------------------------------
I hope you find these algorithms easy to understand, interesting, but
challenging to keygen. Chall4 and Chall5 are exceptions :)
--
andrewl
dec22_2010
http://crackmes.de

Difficulty: 8 - *VERY VERY* hard
Platform: Multiplatform
Language: Python

Published: 01. Feb, 2011
Downloads: 695

Rating

Votes: 4
Crackme is quite nice.

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Solutions

Solution by Dcoder, published 24. mar, 2011; download (428 kb), password: crackmes.de or browse.

Dcoder has rated this crackme as awesome.

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Discussion and comments

mm10121991
01. Feb 2011
Crypto1.py is simply RSA
Xspider
01. Feb 2011
but crypto5.py is obviously ecc x)
mm10121991
01. Feb 2011
I think that to keygen crypto5.py we must solve yhe ecdlp eq ecc_P=x*ecc_g2 then ecc_S=x*ecc_M and extract Serial
Coderess
02. Feb 2011
@andrewl.us
Cool that you are promoting Python ;)
mm10121991
03. Feb 2011
I want to ask a question
what is the relation between those challenges and reversing?
it is becoming pure cryptography and no more related to RCE
Xspider
03. Feb 2011
isn't cryptography a part of rce?!?!?!
andrewl.us
Moderator
03. Feb 2011
Well what is RCE? Is it translating a low level language into a high level one? Or, given code at any level, is it finding the higher-order meaning and intention? Even with source code, I feel the RCE term still describes the process by which the reverser infers the real mechanisms grinding in the ether when the code executes. Remove the "code engineering" from RCE and cryptographic challenges are IMHO pure reversing: deriving the inverse of the given algorithm which can be a difficult and rewarding task.

It's a fun topic to discuss :) Thoughts?
Xspider
03. Feb 2011
yes it is indeed :) please continue x)
Dcoder
04. Feb 2011
It is disingenuous to assume that RCE comes in only one form. Maybe you don't like this kind of reversing. No problem --- there are another 2600 crackmes around here that you might enjoy a bit more.

As a side note, these challenges are not exactly pure cryptography. You'll know what I mean when you solve them.
mm10121991
04. Feb 2011
thanks for great answers. I completely agree with you.
mm10121991
06. Feb 2011
I think that crypto5.py is very hard if not impossible because of the high embedding degree k=12
I wonder if someone could solve it ??????
andrewl.us
Moderator
06. Feb 2011
keep focus on size of E[r]
ged_
09. Feb 2011
warmup:
ged- 262891018316053540401

crypto1:
ged_ 1550151889120292553813567387906948109583186751698793035508642002415874349

crypto2:
ged_ 12921823893748542284

crypto3:
ged_ 10851690446083141803

crypto4:
ged_ 5835344454136807997854764330647727860706415780149643084778-3095922516421432995849388072153253649140895966778534707477

crypto5:
ged_ 7472534846398587807-5832782089640851909

excellent crackme pack.
hound
10. Feb 2011
Awesome pack! Nice to have this in python :-)
jB_
10. Feb 2011
Very good crackmes, even better than last year's pack.
Thanks a lot for having such interesting ideas =)
Xspider
11. Feb 2011
you've been late jb :D
andrewl.us
Moderator
11. Feb 2011
submit solutions! :) :) a few explanatory sentences for each one and keygen code will be accepted! yes thanks jB and now to think about next year...
hound
17. Feb 2011
Well, first 3 and warmup are done. Excellent set of crackmes!!! This is the first time I have dealt with s-boxes and it was good fun indeed.
draww
31. Mar 2011
very nice pack by andrewl.us and solution by Dcoder..


downloadbrowseandrewl.us's UPSKiRT

Download UPSKiRT.zip, 499 kb (password: crackmes.de)
Browse contents of UPSKiRT.zip

"UPSKiRT" CrackME

- serial verification uses elementary number theory
- uses just four or five different calls to custom big number lib
- values of big numbers in memory are EXTREMELY obvious

The serial verification is based on a single call, no decoys. The only anti-debug is distracting multimedia :) I apologise in advance if any bugs are found. Kindly report them immediately. Crackme and a working keygen were tested on 32-bit XP SP2.

Keygen only! Enjoy!

Difficulty: 3 - Getting harder
Platform: Windows
Language: C/C++

Published: 13. Sep, 2008
Downloads: 1349

Rating

Votes: 7
Crackme is nothing special.

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Solutions

Solution by Numernia, published 15. sep, 2008; download (70 kb), password: crackmes.de or browse.

Numernia has rated this crackme as awesome.

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Discussion and comments

Numernia
Moderator
13. Sep 2008
a great keygenme, thank you
simonzack
Moderator
14. Sep 2008
does the characters have to be typable?
andrewl.us
Moderator
14. Sep 2008
yes, only 7-bit ascii characters
cyclops
Moderator
15. Sep 2008
Great code :)
Nice piece of GFX and c00l code!
Nice one Andrew!
andrewl.us
Moderator
15. Sep 2008
Thanks dudes!

Too bad Numernia had to solve it so fast :>
artif
28. Sep 2008
nice andrewl.us ;) keep up the good work
papanyquiL
27. May 2009
awesome code :P look forward to seeing more
ShadeS_07
18. Jun 2009
I have a problem, when I try to run the program it says: "UPSKiRT.exe has encountered a problem and needs to close. We are sorry for the inconvenience." How can I run the program peepz? Thanks... :)
daemon2
26. Dec 2009
Looking good, will try this one out when I get home.

By the way, your site is down.


downloadbrowseAndSoOn's AndSoOn_Crackme1

Download AndSoOn_Crackme1.zip, 5 kb (password: crackmes.de)
Browse contents of AndSoOn_Crackme1.zip

This crackme was written with Turbo PASCAL :) make a keygen and send a sol tu me

Difficulty: 2 - Needs a little brain (or luck)
Platform: DOS
Language: Unspecified/other

Published: 19. Aug, 2004
Downloads: 1020

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Solutions

Solution by Oorja-HalT, published 23. aug, 2004; download (4 kb), password: crackmes.de or browse.

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Solution by kao, published 23. aug, 2004; download (19 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseAndT's AndT's Crackme#3

Download crackme_#3.zip, 22 kb (password: crackmes.de)
Browse contents of crackme_#3.zip

The target is to get "GOOD BOY :)" on the screen...
no patching..

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: Unspecified/other

Published: 23. Oct, 2008
Downloads: 444

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Solutions

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Discussion and comments

AndT
Author
26. Oct 2008
no solution here? :)
Zaphod
29. Oct 2008
I'm trying, but no luck so far :(
AndT
Author
29. Oct 2008
but it is possible..
DigitalAcid
30. Oct 2008
I got it to say "HSVF$>F`(B-" on the screen after entering some username/password and patching a couple of jumps :).
But I don't have much time to try to solve it.
Shouldn't be too hard, I guess ;).
Zaphod
30. Oct 2008
DigitalAcid, it's probably harder than you think :)

"HSVF$>F`(B-" ( or some other chars ) are what your serial is changed into. Then I assume something happens further on with these chars, but I cannot find out what.
DigitalAcid
31. Oct 2008
=> The target is to get "GOOD BOY :)" on the screen...

Now, count the chars between quotes :P.


downloadbrowseAndT's AndT's Crackme #1

Download crackme.zip, 298 kb (password: crackmes.de)
Browse contents of crackme.zip

my first tricky crackme

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: Unspecified/other

Published: 31. Jul, 2008
Downloads: 530

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Solutions

Solution by br0ken, published 03. aug, 2008; download (3 kb), password: crackmes.de or browse.

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Discussion and comments

starlight
01. Aug 2008
If I make the process shows "It works!" .Is it means that I have cracked successful?
br0ken
01. Aug 2008
I have the same question as Starlight.
AndT
Author
01. Aug 2008
Then is it cracked


downloadbrowse_Andy_'s _Andy_ KeygenMe

Download CrackMe.zip, 281 kb (password: crackmes.de)
Browse contents of CrackMe.zip

A simple KeygenMe written in AutoIt3.
You must find a valid username and key.
Good luck.

Difficulty: 1 - Very easy, for newbies
Platform: Windows
Language: Unspecified/other

Published: 11. Sep, 2009
Downloads: 1345

Rating

Votes: 4
Crackme is quite bad.

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Solutions

Solution by deurus, published 14. sep, 2009; download (1194 kb), password: crackmes.de or browse.

deurus has rated this crackme as nothing special.

The submission of solutions is closed.

Discussion and comments

deurus
12. Sep 2009
Example:

deurus
SURUED

Good job Andy! i enjoy so much with this
The So;X
13. Sep 2009
its packed with UPX
deurus
13. Sep 2009
Yes, because Autoit compiler by default pack with upx
_Andy_
Author
14. Sep 2009
It would be nice to share with us your solution.
yaav
19. Sep 2009
Why when i unpack it and fix the imports i got MessageBox with message like Unable to open script file.
_pusher_
19. Sep 2009
yaav: script is the overlay :)
so just copy the overlay and put it at the end of your unpacked file.
yaav
19. Sep 2009
agh... sorry i am noob i dont understand what is the "overlay"
Zaphod
22. Sep 2009
pusher, when I use "myExeToAut" like deurus says I get the scriptfile, "CrackMe.au3". So far so good.

But when I unpack the CrackMe (which is packed with UPX) and append CrackMe.au3 to this unpacked file, it still doesn't work. It still says "Unable to open script file".

What am I doing wrong? And would it be possible to solve the crackme using only Olly and not myExeToAut?
deurus
26. Sep 2009
First unpack with upxripper or similar and then get the script
Zaphod
26. Sep 2009
But I have the script, it's "CrackMe.au3". I got it directly using "myExeToAut" which unpacks and saves the script.

What I don't understand is pusher's comment:

"so just copy the overlay and put it at the end of your unpacked file."

I don't know what that is supposed to do :(
_pusher_
03. Jan 2010
Sorry, i missed the comment.
but my guess is that you are copying the overlay from the wrong place, or its unpacked differently :)
but unpack it with upx -d and overlay would follow.


downloadbrowseanemyx's RegMe

Download rEGme.zip, 205 kb (password: crackmes.de)
Browse contents of rEGme.zip

No patching!!! Find Valide key!

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: Borland Delphi

Published: 07. Nov, 2009
Downloads: 319

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Solutions

There are no solutions to this crackme yet. Have you solved it? Please write a tutorial and submit it here!

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Discussion and comments

crackerlnn
08. Nov 2009
key:H7E^D@SP
i try
anemyx
Author
08. Nov 2009
Gt! it will be so easy )!


downloadbrowseAnk83's KeyGenMe

Download keygenme.zip, 5 kb (password: crackmes.de)
Browse contents of keygenme.zip

Hi !

This KeyGenMe is written in Turbo Pascal 7.0. It's packed with UPX.
The keygen will be trycky (i think) becase I implemented recursion.
The main thing is that I want to show how recursion can be nasty when
you are trying to reverse it.

Hope you will enjoy reverseing it !
Best Regard
Ank83

P.S. This CrackMe is dedicated to my wife Irena and my daughter Mila.

Difficulty: 3 - Getting harder
Platform: DOS
Language: Turbo Pascal

Published: 30. Jan, 2006
Downloads: 621

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Solutions

Solution by Kerberos, published 01. feb, 2006; download (51 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseAnk83's KeyGenMe #2

Download keygenme2byank83.zip, 32 kb (password: crackmes.de)
Browse contents of keygenme2byank83.zip

Hi !

This crackme is a product of 10 minutes writting.
It's only for newbies, becase it's damn to easy.
I promise to the advanced crackers that I will write another one !
It will be interesting for the newbies becase it is just simple math.

Rules:
1. no patching and no selfkeygen
2. write a keygen and a soluton

Best Regards and Have A Nice Cracking Day !
Ank83

Difficulty: 1 - Very easy, for newbies
Platform: Windows
Language: C/C++

Published: 26. Feb, 2006
Downloads: 1159

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Solutions

Solution by l0calh0st, published 03. mar, 2006; download (8 kb), password: crackmes.de or browse.

l0calh0st has not rated this crackme yet.

Solution by NexusC, published 03. mar, 2006; download (145 kb), password: crackmes.de or browse.

NexusC has not rated this crackme yet.

Solution by Ox87k, published 28. feb, 2006; download (40 kb), password: crackmes.de or browse.

Ox87k has not rated this crackme yet.

Solution by HMX0101, published 03. mar, 2006; download (23 kb), password: crackmes.de or browse.

HMX0101 has not rated this crackme yet.

Solution by Napalm, published 03. mar, 2006; download (12 kb), password: crackmes.de or browse.

Napalm has not rated this crackme yet.

The submission of solutions is closed.

Discussion and comments

SaXoN
26. Feb 2006
Hey thanks pal...
I'm a total noob myself, i've got all the basics and im going to see if i can understand a name/serial routine =)
Nice with new stuff, keep it up ;)

SAx
HMX0101
26. Feb 2006
Nice crackme, Ank83.
Good Job!
Ox87k
26. Feb 2006
it's very easy! =)
thank ank ;)
HMX0101
26. Feb 2006
I'm waiting the next crackme :D
l0calh0st
26. Feb 2006
Solved it ;)
Thanks Ank83..Easy enough for newbies like me ;)
Kerberos
26. Feb 2006
Yep, nice one Ank83 ... I'm looking forward to your KeyGenMe#3
Ank83
Author
27. Feb 2006
Hi
I'm glad you like it.
I would like to say hello and thanks to all moderators and creators of crackme.de. This web page is simply perfection. The moderators and all the members are of lot of help here. I leard a lot of thinks wich I didn't know. And I gave some knolege to some newbies members. What i actually wanna say is THANKS to everyone that is here and are active.
Regards
Ank83
CuTedEvil
03. Mar 2006
more than enough solutions for this crackme.
Submission is now closed =)
Krabby Krap
06. Oct 2007
This is definitely my favorite crackme, because it's my first =)

I've solved others but thought I'd post this before I head on to more crackmes. Crakemes.ed rules!!!
fangrenxing
28. Apr, 04:47
실례
ID : 100
serial : 40211

알고리듬

++ID;
ID *= 2;
--ID;
ID *= ID;
for ( i = 1; i < 20; ++i )
ID -= i;
serial = ID

흥, 째보 코 빨아먹기로군.


downloadbrowseAnk83's Pyramid

Download pyramid_by_ank83.zip, 13 kb (password: crackmes.de)
Browse contents of pyramid_by_ank83.zip

Hi !

Pyramid is all in one crack me ! In it you have unpacking, fishing
a serial, enableing buttons, checkbox combination, keyfile, NAG,
keygenerator, OllyDbg protection, patching e.t.c. It's full of trick
and traps, so beware ! The CrackMe will misslead you all the time
so dont belive anything u see ! I dont think that you will crack it
as fast as i wrote it !

Task: Find the serial in stage 1, checkbox combination in stage 2,
reconstruc the keyfile in stage 3, make keygen for stage 4 ! Do all
this without patching, and everything else you can patch !

Hope you will enjoy cracking the Pyramid !
Best Regard
Ank

P.S. This CrackMe is dedicated for my newly born dauther - Mila !

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: (Visual) Basic

Published: 23. Jan, 2006
Downloads: 1119

Rating

Votes: 3
Crackme is boring.

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Solutions

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Discussion and comments

Ank83
Author
18. Dec 2005
Does anyone have a solution for this crackme ?
konstAnt
20. Dec 2005
That's a hang work man...???? Writing a solution for a crackme like this which has that many feature is a hanging up task.. :P
madlogik
20. Dec 2005
If anyone is patient enough, I would like to know how to enable buttons like the check button here... (step1 )
thanks
- madlogik(AT)gmail.com -
madlogik
20. Dec 2005
... how to find the ENABLE/DISABLE CONTROL .. ?
I crtl+b to find Check
I dont know witch one to (modify byte) from 00 to 01 to enable the button.. I dont really get the logic to find the right one..
thanks
deroko
20. Dec 2005
open it VBdecompiler and locate manually what to enable in exe itself or use Window Enabler to enable buttons/forms...
Ank83
Author
20. Dec 2005
Hint: REMEMBER this: Open a vb application in some HEX editor, and find the sting that is caption for that button, checkbox e.t.c. Go to the end of the caption, and start counting ! The 24th byte will be for for enableing that button !
Ex.: 59 6F 75 20 64 69 64 20 69 74 3F 3F 3F 0 0 0 4 F 8 0 7 C 8 0 A 6 F 0 9 7 7 0 1 0 8 0 {0}
Y o u d i d i t ? ? ? 1 2 3 4 5 6 7 8 9 101112131415161718192021222324
0 - disabled and 1 - enabled
Absolom1
21. Dec 2005
madlokik, for buttons once you have finded the label ("Check" in this case) you have to count eleven rows and edit the 00 you encountered there with a 01. This is only for Buttons... for Textbox, you have to change with FF, I think... but I´m not sure now...
konstAnt
21. Dec 2005
Yah I've enabled the buton and enabled the button and perhaps found the first level password... But it doesn't show any other box???
Ank83
Author
21. Dec 2005
konstAnt here's some help ! Open the application in VBDecopmiler and from there make vpb pjocet and open it to see what is hidden(invisible) and what is the secret trick in level one !
Ank83
Author
21. Dec 2005
Does anyone passed stage one, yet ? Or do you need some help ?
konstAnt
22. Dec 2005
Ooops Z...Z... Was sleeping that time
deroko
22. Dec 2005
one q on s2... you check if 2nd button checked(1) if not __vbaEnd, and later you check for (0) unchacked, if checked __vbaEnd... i'm confused...

00406A44
if not 1 -> __vbaEnd

and again:

00406E9C 66:83BD 38FFFFF>CMP WORD PTR [EBP-C8],0
00406EA4 0F94C3 SETE BL

but this time for 0... if not 0(unchecked) ->> __vbaEnd
Ank83
Author
22. Dec 2005
That is the part where you have to patch ! The thing is that that is the part to confuse you ! The code is checking a checkbox from stage 2 not from stage 1.
Just patch it ! This was put here to confuse you !
This message will be deleted after two days so we dont show this hint to future cracker !
Have a nice day !
Ank83
Author
22. Dec 2005
In other word that is a NAG ! A msgBox that will always popup becase the condition of poping up will always be true !
Ank83
Author
23. Dec 2005
Any progress, anyone ? I think that the webmaster's should upgrade the level of difficulty of my crackme ?! A least 3th ! :)
windayjiang
24. Dec 2005
QUOTE:Hint: REMEMBER this: Open a vb application in some HEX editor, and find the sting that is caption for that button, checkbox e.t.c. Go to the end of the caption, and start counting ! The 24th byte will be for for enableing that button !
Ex.: 59 6F 75 20 64 69 64 20 69 74 3F 3F 3F 0 0 0 4 F 8 0 7 C 8 0 A 6 F 0 9 7 7 0 1 0 8 0 {0}
Y o u d i d i t ? ? ? 1 2 3 4 5 6 7 8 9 101112131415161718192021222324
0 - disabled and 1 - enabled

I think it's not right like you said, I tested my app wrote with VB6.0:
app1 button1 enable=true
app2 button1 enable=false
both same project, but save as two different app
open them with WINHEX, it has 1300 places different

and I try to use your way to enable the button, nothing done! why?
windayjiang
24. Dec 2005
Yah, I tested it will done like this:
Check 1 2 3 4 5 6 7 8 9 A B C
..........

position C changed 01 can work, is that right?
Ank83
Author
24. Dec 2005
Try patching the 24 bit (12th byte) in each of the application from 00 to 01 or from 01 to 00 ! You will see that if the button was enabled it becames disabled, or if the button was disabled than becames enabled ! Remember the 12th byte after the end of the caption of that button ! This is a case in all my written VB application, and all other that I try ! I dont know what should be the problem with yours ! I'm not 100 % sure that this is a case in all VB aplications, but I'm 100 % sure that this is the case is mine crackme ! :)
windayjiang
25. Dec 2005
YES,I have already enable the OBJECT in stage1, but how can I type the "A0"? It always be a space. And if I edited in the dump, I can go to the stage2, it will tell me that something forget in stage1. I am sure I have already checked the checkbox. Anything else?:)
deroko
25. Dec 2005
write dialog that will print 'A0'+serial+'A0' and c/p from dialog to crackme =)
Ank83
Author
25. Dec 2005
This will be the last hint for level one ! A0 is ALT+255 !
Ank83
Author
25. Dec 2005
in other words that is character that is similar to space !
konstAnt
26. Dec 2005
Nop that's not ... :X Space means (space) in dump but it is something different..
Ank83
Author
27. Dec 2005
Any one at level 3 or 4 ?
konstAnt
28. Dec 2005
I just passed level 1 :P
KLiZMA
28. Dec 2005
Used: PE Explorer, PEiD, VBReFormer

1 step [Unpacking]

Put this crackme in PE Explorer and save it :)
Whatta FuN? This tool unpacked crackme from UPX to generic VB app.
New filesize 53,248 kb.

2 step [Enable-Disable]

Put unpacked shit in VBReFormer and change PyramidS1 - VB.Form:

Check1 - VB.CheckBox Visible False to True
Command1 - VB.CommandButton Enabled False to True
Text1 - VB.TextBox Enabled False to True

Save app. with changed parameters.

3 step [You are THE BEST CRACKER IN THE WORLD]

Run cracked app., press Check button and see ........ Nice work! message??????

Thatz all???? What trick, fun, hard???? He-he :))
Ank83
Author
28. Dec 2005
Dear KLiZMA what you've seen is the bad boy message ! The app has 4 stages ! But you're pretty close to passing stage one ! You enabled everything, you check the checkbox, all you need is the valid pass !
Hint: Do some reading in the dsscusion above, and i think you will find the valid pass, and the way to get it !
Have a nice cracking day !
Ank83
Author
28. Dec 2005
Keep going ! If some one needs hints, dont be shy and ask me !
windayjiang
29. Dec 2005
i still can't solve the A0 problem,shit!
BlackHawk
29. Dec 2005
i've unpacked , enabled all the thinks you can found in the 1st form but I still can't go trugh it... i can't use Olly because of the debugger protection, and i don't know how to disable it... ank83, i begin to hate you ^_^
Ank83
Author
29. Dec 2005
BlackHawk the OllyProtection is one of the most stupid protection that I can think of ! All you need to do in Olly is NOP the adress that is calling that protection ! NOP everything that is calling the procedure of OllyProtection ! It will work belive me ! Dont forget the hidden check box !
Have a nice day !
BlackHawk
29. Dec 2005
i've made visible the ceck box... now i'll wprk on the antidebugprotection... tnks
Ank83
Author
29. Dec 2005
windayjianq A0 is in HEX, in DEC that is 160 ! Find the character that is assingn to 160 !
I wrote a VB app to help you:

Private Sub Form_Load()
Dim a As String
a = Chr(160)
Text1.Text = a
End Sub

In the textbox you will get a character that is similar to space, but it's NOT ! So you can copy/paste it ! And at last here is the serial in stage one: ALT+255+"Ank Rulz"+ALT+255 !
Please tell me that you understand me !
HMX0101
29. Dec 2005
the anti-ollydbg trick, check if ollydbg.exe is running,
you can change the name and bypass this protection
Ank83
Author
29. Dec 2005
That is one way ! And I think that that is the easyest way, Becase OllyProtection is a one procedure that is called from places all over the crackme, so if you alter that procedure, that string you solved the problem till the end of the crackme ! So open the crackme in Hex editor find the "OLLYDBG.EXE" string and change it to "OLLYDB1.EXE" !
HM0101 nice work !
Ank83
Author
29. Dec 2005
I think that the moderators should upgrade the difficulty level of this crackme, at least 3 ! :)
Ank83
Author
31. Dec 2005
Happy New Year ! I hope you will crack my crackme in the next year ! :)
Ank83
Author
03. Jan 2006
Waiting solution ! Does anyone work on this or you all gave up ? :P Come on people i will help as much as I can !
EsKiMo
22. Jan 2006
Just reached level 3!
This is a very good crackme. It has lots tricks/code that need to be NOPed or patched to work in the right way.
Good work Ank83 :)
Ank83
Author
22. Jan 2006
Thanks EsKiMo ! If you need some help don't hasitate to write me.
Regards
Ank83
HMX0101
24. Jan 2006
the 2nd stage its a little harder, i can't get the correct combination of checkboxes, some hints?
hadicol
25. Jan 2006
Check out the 7 vbaObjSet functions in a row. The function immediately after vbaObjSet actually checks if the box is selected. I had to check each box and see which function responded to see what order they were in.

I am on stage 3, stuck on the key file... and for the success message, what button do you mean enabled? "Next Stage" is already enabled! Should I just guess where to patch it to?
hadicol
25. Jan 2006
ok figured out keyfile (I was over-thinking it) now just need a magic patch?
Ank83
Author
26. Jan 2006
To see in what order they are you can use VB6Decomiler. Generate a VB Project and you will see. I think that that is the easyer way.
I uploaded a new version of this crackme to make the level 3 easyer. So now, when you press Next Stage you will get NAG message and exit. In the code I implemented a procedure that call's the next and final stage. All you have to do is call that function (adress).
Sorry for the late respond.
Regards
Ank83
HMX0101
15. Mar 2006
I have the correct combination of checkboxes but i need the string that compare the serial in the clipboard.

This is a easy one, thank you Ank83 for this crackme, the solution for this crackme is coming soon...
Ank83
Author
15. Mar 2006
I think that the srerial include some special ascii characters (like. ATL+255 e.t.c.). It goes something like "CrAcKINg iS Co0L !", this is not the string, but it is similar to that. I will post it tomorow, becase I'm not home I don't have the source here.
Best Regards
Ank83
Ank83
Author
15. Mar 2006
HMX0101 did you found the string ?
In case you did not found it, here it is: " CrAcking is ÿc0ol !"
Regards
Ank83
l0calh0st
15. Mar 2006
It seems Ank has to submit solution for his Crackme :)
Ank83
Author
15. Mar 2006
It seems like that ! It was my first crackme, so I wanted to be solved. That is why I give so much help. :)


downloadbrowseAnonimoSer's AnonimoSer CrackMe I

Download crackme1.zip, 178 kb (password: crackmes.de)
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My first crackme.

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 09. Aug, 2002
Downloads: 3156

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Solutions

Solution by Exhuman, published 12. aug, 2002; download (1 kb), password: crackmes.de or browse.

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downloadbrowseAnonimoSer's AnonimoSer CrackMe II

Download crackme2.zip, 179 kb (password: crackmes.de)
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My second crackme, like the first, but ...

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 09. Aug, 2002
Downloads: 2908

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Solutions

Solution by DaKneeMan, published 21. oct, 2003; download (1 kb), password: crackmes.de or browse.

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Solution by _pusher_, published 29. aug, 2002; download (8 kb), password: crackmes.de or browse.

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Solution by you_known, published 22. aug, 2002; download (1 kb), password: crackmes.de or browse.

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downloadbrowseAnonimoSer's AnonimoSer CrackMe III

Download crackme3.zip, 183 kb (password: crackmes.de)
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Here you have one more

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 09. Aug, 2002
Downloads: 2551

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Solutions

Solution by _pusher_, published 29. aug, 2002; download (7 kb), password: crackmes.de or browse.

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downloadbrowseAnonimoSer's AnonimoSer Crackme IV

Download crackme4.zip, 170 kb (password: crackmes.de)
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Its a little tricky....

Difficulty: 2 - Needs a little brain (or luck)
Platform: Unspecified/other
Language: Unspecified/other

Published: 10. Aug, 2002
Downloads: 2683

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Solutions

Solution by fira, published 27. mar, 2004; download (2 kb), password: crackmes.de or browse.

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downloadbrowseAnonimoSer's AnonimoSer CrackMe V

Download crackme5.zip, 215 kb (password: crackmes.de)
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I think this is a little more difficult...

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 09. Aug, 2002
Downloads: 2773

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Solutions

Solution by _pusher_, published 19. may, 2004; download (12 kb), password: crackmes.de or browse.

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downloadbrowseAnonimoSer's Antisocial Crackme I

Download antisocial1.zip, 236 kb (password: crackmes.de)
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AntiSice AntiDsasm AntiDebug AntiOlly

Difficulty: 8 - *VERY VERY* hard
Platform: Unspecified/other
Language: Unspecified/other

Published: 05. Jan, 2003
Downloads: 3227

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Solutions

Solution by Roma, published 30. sep, 2003; download (14 kb), password: crackmes.de or browse.

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Discussion and comments

apuromafo
16. Jul 2007
can not see the solution but ..
the oep is
00474988 > $ 55 PUSH EBP
Shism
16. Jul 2007
There's nothing in the solution ??/
Shism
16. Jul 2007
Also crackme doesn't startup in my computer
apuromafo
16. Jul 2007
mine doesn't startup but in oep can dump and see iat cleaned..maybe the comparations do crash...
but this is the oep 00474988
can see an push 00474988...go to. 00474988 and dump..
you see the encripted delphi..
Shism
17. Jul 2007
Yes, I see it. Thank you


downloadbrowseAnonimoSer's Nirvana Crackme I

Download nirvana_crackme1.zip, 39 kb (password: crackmes.de)
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OH KURT COBAIN NO TE HUBIERAS MUERTO

Difficulty: 2 - Needs a little brain (or luck)
Platform: Unspecified/other
Language: Unspecified/other

Published: 26. Jan, 2003
Downloads: 2114

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Solutions

Solution by scarabee, published 25. feb, 2003; download (23 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseanorganix's CrackMe #6 :: anorganix

Download CrackMe.6.anx.zip, 144 kb (password: crackmes.de)
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Hi all!
I bring you my latest CrackMe (#6). The goal is to find a valid serial for your name and then write a keygen + tutorial.

Please send comments and bug-reports to anorganix[at]gmail[dot].com.

Trcks: anti-debugging / code obfuscation / string encoding / custom packing




Have phun!

Difficulty: 4 - Needs special knowledge
Platform: Windows 2000/XP only
Language: Borland Delphi

Published: 16. May, 2006
Downloads: 636

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Solutions

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Discussion and comments

kao
17. May 2006
I liked unpacking it - quite easy, but still enjoyable. Serial check can be found easily, but I am too lazy to do keygen. :P

Would be nice getting source of this CM. After a decent tutorial is published, of course..


downloadbrowseanorganix's CrackMe #8 :: anorganix

Download CrackMe.8.anorganix.zip, 30 kb (password: crackmes.de)
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Features:
* packed with home-brewed packer
* import table protection
* simple OEP protection + function hash +CRC
* customized MD5 for serial generation routine

Instructions:
* do not patch the registration routine
* write tutorial + CodeGen to recieve Delphi sources

anorganix@gmail.com
09.10.2006

Difficulty: 3 - Getting harder
Platform: Windows
Language: Borland Delphi

Published: 09. Oct, 2006
Downloads: 840

Rating

Votes: 5
Crackme is quite nice.

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Solutions

Solution by Encrypto, published 27. mar, 2008; download (1533 kb), password: crackmes.de or browse.

Encrypto has rated this crackme as quite nice.

Solution by HMX0101, published 15. oct, 2006; download (24 kb), password: crackmes.de or browse.

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Discussion and comments

The french beginner
09. Oct 2006
good idea to set OEP as SEH.
ghostz
09. Oct 2006
Thank you for your help -The french beginner ;)
I unpaked it and see the serial for my name. Olly clearly displays it.
thx anorganix for this Nice Crackme :)
@+
HMX0101
10. Oct 2006
You can fish and keygen it, without unpack ;)
ghostz
10. Oct 2006
How? you can give me some things please :)
The french beginner
10. Oct 2006
you just have to run the target in olly, and set bp on GetWindowTextA for example
ghostz
10. Oct 2006
Ok ! this method without unpacking the crackme Works! Thx Beginner!
EvOlUtIoN
10. Oct 2006
I don't understand why you don't want to unpack it, it is very simple and you can make a codegen in an easier way!
Encrypto
27. Mar 2008
I absolutely like this one. good packing and quite easy to unpack :D. also half decent algo. thank heavens the author said it had md5 lol. ;). thanks yet again.
DigitalAcid
27. Mar 2008
Nice crackme and nice solutions. Learned a little bit more again.

PS:
You can find OEP in an easier way:
Line 0041C004 and 0041C048 both have the same push (basically that's the OEP) and line 0041C04D has a RET.
PUSH + RET = JUMP ;).
I couldn't step into those calls.
Also, PEiD told what the OEP should be ;).


downloadbrowseanorganix's KEYGEN.ME.5

Download CrackMe.5.anorganix.zip, 222 kb (password: crackmes.de)
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Rules:
patching the registration-routine is *not* allowed
a valid solution has to contain unpacked file + codegen + tutorial

Features:
anti-debugger tricks
special packing trick (UPX is just at the surface)
nice serial-generation routine

Difficulty: 4 - Needs special knowledge
Platform: Windows 2000/XP only
Language: Borland Delphi

Published: 01. Feb, 2006
Downloads: 843

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Solutions

Solution by kao, published 13. feb, 2006; download (282 kb), password: crackmes.de or browse.

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Discussion and comments

anorganix
Author
05. Feb 2006
Need some hints? Here is the first: "ANX" / "anx"
anorganix
Author
06. Feb 2006
P.S: the above hint is usefull after unpacking :D
HMX0101
06. Feb 2006
The crackme has a section named ".anx", if is changed show a error, maybe this is the loader section :)

If this is correct, tell me more hints, hehehe :)
Kerberos
06. Feb 2006
HMX0101: Your're close, but it's not loader section ... it's section with encoded file which is loaded into memory. But after saving this file after decoding I'm still unable to repair it's PE header :-/ (I think it's packed with UPX)
HMX0101
07. Feb 2006
yeah this is packed with UPX :)
Kerberos
07. Feb 2006
Yeah, but that "second" file is IMHO packed with UPX too :)
anorganix
Author
07. Feb 2006
You are almost right guys...
It's packed with a "home-brewed" packer that uses the UCL compression library (same used in UPX)...

This is the second hint... :)
HMX0101
07. Feb 2006
uhhhm, the crackme uses some calls to WriteProcessMemory and CreateProcess, interesting...
HMX0101
07. Feb 2006
The compression library used maybe is the Delphi version of UCL: http://www.zeitungsjunge.de/delphi/ucl/index.htm :D
HMX0101
07. Feb 2006
This is a trap, the crackme is packed two times:
1: Packed with UPX
2: Packed with a modified version of UCL

anorganix:
You are cool!
anorganix
Author
07. Feb 2006
Thx man! If you need more hints, just ask... :D
kao
09. Feb 2006
Unpacking took 15 minutes. Serial algo search and rippping - 30 minutes. Got fooled by certain trick.. ;)

Thumbs up for Anorganix!
Kerberos
09. Feb 2006
Kao : I hope you're going to write a solution :)
HMX0101
09. Feb 2006
kao: please write the solution :D
l0calh0st
09. Feb 2006
How to unpack the file
kao
10. Feb 2006
Sorry guys, I am damn lazy... ;)

If nobody writes a solution until Monday, I will write a tutorial + publish keygen sources in 100% Delphi. Not a single ASM line in there.. :))
anorganix
Author
13. Feb 2006
@kao:
Your solution is VERY well explained... You are a talented reverser!

Cheers!
HMX0101
13. Feb 2006
kao: you are a very talented cracker, but a lazy person XD
Sorry for my bad english


downloadbrowseanorganix's KeygenMe #4 :: anorganix

Download CrackMe4_anorganix.zip, 344 kb (password: crackmes.de)
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* patching not allowed

* coded in Delphi7
* packed with NsPack
* write a KEYGEN to recieve the full-source code

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: Borland Delphi

Published: 03. Dec, 2005
Downloads: 1009

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Solutions

Solution by merker, published 10. dec, 2005; download (1 kb), password: crackmes.de or browse.

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Solution by deroko, published 10. dec, 2005; download (223 kb), password: crackmes.de or browse.

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Discussion and comments

anorganix
Author
06. Dec 2005
Need some hints? C'mon it's not so hard... :)
Immortal_One
06. Dec 2005
Crashes on W98se (blue-screen-of-death)
anorganix
Author
06. Dec 2005
Hmm... didn't test it with 9x!


downloadbrowseanorganix's UnlockMe :: anorganix

Download UnlockMe.zip, 180 kb (password: crackmes.de)
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* create a KEYGEN or find a valid "Unlock Code"
* patching is not allowed


o4.12.2oo5

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: Borland Delphi

Published: 07. Dec, 2005
Downloads: 1134

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Solutions

Solution by HMX0101, published 18. jan, 2007; download (19 kb), password: crackmes.de or browse.

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Discussion and comments

jB_
07. Dec 2005
Really easy stuff, but I found it interesting, I don't know why. Maybe because of the template.
jB_
18. Dec 2005
HMX0101 : THere are a lot of valid serials. The condition to resect is not very restrictive :)
konstAnt
20. Dec 2005
Is anyone going to give the solution???
anorganix
Author
10. Jan 2006
Need some hints?
anorganix
Author
11. Jan 2006
Unpacked the file? How about debugger detection? :)
HMX0101
11. Jan 2006
i have dumped the crackme and rebuilded the import table and eliminated the debugger detection, but i can't sniff the serial
TQN
16. Mar 2006
Solved it, it is really a interest crackme.
Krtko666
19. Jul 2006
can anyone help me because i'm new in this and when i tried to open file in delphi 7 created in delphi it only showed my something that couldn't be read


downloadbrowseAntiPro's Fascist KeyGenMe #1

Download Fascist_KeyGenMe_#1.zip, 201 kb (password: crackmes.de)
Browse contents of Fascist_KeyGenMe_#1.zip

Objective of Fascist KeyGenMe #1 is obviously to keygen it, but finding one serial number is also accepted. Just be sure to mention how you found it.

You're on your own from here. Good luck!

Difficulty: 5 - Professional problem to solve
Platform: Windows 2000/XP only
Language: C/C++

Published: 03. Jun, 2006
Downloads: 730

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Solutions

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Discussion and comments

AntiPro
Author
14. Sep 2006
Nobody? Come on, guys! :)
badmojo
14. Sep 2006
Do you really expect us to bruteforce 20^16?...
badmojo
14. Sep 2006
Actually my last post was incorrect, I mean 0x14^0x24.

However I have a challenge for you. Post one of the 512 valid keys and I will give you the remaining!
Shouldnt be a problem, right, since they're all independent? ;)

Cheers
crp-
15. Sep 2006
heh, nobody broken blowfish yet ? ;)
badmojo
16. Sep 2006
I'm closeeeeeee!
badmojo
17. Sep 2006
Wooowhooooooooooo got it!!!

Will post solution if there is interest. :)

See, you can break blowfish!

Cheers
crp-
17. Sep 2006
of course theres interest :)
Ox87k
17. Sep 2006
well, badmojo if u can write a good solution for us :)
badmojo
18. Sep 2006
I'll find some time over the next couple of days to write something on this. :)


downloadbrowseAntiPro's KeyGenMe Bassez32

Download KeyGenMe_Bassez32.zip, 23 kb (password: crackmes.de)
Browse contents of KeyGenMe_Bassez32.zip

A tiny symmetric encryption algorithm (32bit input, 32bit output, 32bit key).

Objective is not to crack it but to write a keygen that works with any input/output/key combination.

Good luck!

Difficulty: 3 - Getting harder
Platform: Windows
Language: C/C++

Published: 04. Sep, 2008
Downloads: 575

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Solutions

Solution by JoKa, published 08. sep, 2008; download (13 kb), password: crackmes.de or browse.

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Solution by andrewl.us, published 08. sep, 2008; download (6 kb), password: crackmes.de or browse.

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Discussion and comments

[xorolc]
05. Sep 2008
who the hell cares. Aren't we here to learn something and advance some protection ideas? Not be like I found this or that which has nothing to do with helping others? I'm not trying to be a jerk about it, but these kinds of posts are so useless. Look at me I'm first.
lgtngstk
07. Sep 2008
I'm not exactly clear on what you want in the keygen. Something which generates output from a input/key combination, key from input/output, input from key/output, or all of the above?
lgtngstk
08. Sep 2008
Okay, so is what you enter in the window the input or key? Otherwise, there is no way to figure this out.


downloadbrowseantofik's VVM keygenme: level 1

Download VVMachine.zip, 5 kb (password: crackmes.de)
Browse contents of VVMachine.zip

A keygenme with a very simple checking algo, but realized at embded virtual machine (embded into another VM).

For more information see readme.txt

Difficulty: 5 - Professional problem to solve
Platform: Windows
Language: Assembler

Published: 08. Apr, 2008
Downloads: 507

Rating

Votes: 5
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Solutions

Solution by Babo0n, published 13. apr, 2008; download (11 kb), password: crackmes.de or browse.

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Discussion and comments

Babo0n
13. Apr 2008
Interesting Crack-me !
I've finished to studie all the VMs and I'm coding a keygen

I think it could be more interesting with junk and a best utilisation of all the opcodes of your first VM

(I hope my bad english will not hurt your eyes ;) )
Babo0n
13. Apr 2008
(PS : your TLS implementation is bad and crash the keygen-me on my second computer)
antofik
Author
14. Apr 2008
Well, Babo0n, good work :-)
As for TLS, yeah, it could be. Because I was a bit in hurry when added that callback, and probably have easily missed something. Well, ought to be more attentive next time:-).
And what about junk - really I don't like to make a jumble from code. Firstly because the main idea was not to make you sit and spit upon the awful code :-) Understanding the VM is a routine, thus I don't want to do it more boring for you.
Well, next level VMachines will be much more complicated and, hope, interesting.
hinte!
15. Aug 2009
nice and simple

name: hinte^2oo9
serial: 4vxEB*;85(0-*'$!(

sum(name) == sum(serial (+-^|&+) Russia) &&
sum(name) == sum(serial) + 1 &&
sum_div(name) == sum_div(serial)

probably there is no keygen that generates nice looking serials


downloadbrowseantonone_'s antonone\'s crackme v0.666

Download crackme_v0666.zip, 32 kb (password: crackmes.de)
Browse contents of crackme_v0666.zip

Hi :]. This is my second crackme I decided
to release. It\'s free of cryptographic stuff
of any kind, just a few math tricks that
everybody should handle ;). Everything can
be reversed (i made a working keygen myself).

The goal is to make a working keygen.

There\'s no anti-disasm nor anti-debug stuff,
so patching won\'t be necessary.

Difficulty: 4 - Needs special knowledge
Platform: Windows
Language: C/C++

Published: 10. Sep, 2004
Downloads: 579

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Discussion and comments



downloadbrowseaodrulez's Aodrulez's Javascript Crackme

Download Aod_JSFoo.zip, 2 kb (password: crackmes.de)
Browse contents of Aod_JSFoo.zip

[Description]
Its a javascript based challenge but an interesting one nonetheless :) Was entirely handcrafted & has some interesting techniques... but its an easy one for an experienced reverser. ;)

Tip for Dummies :
1. Extract the contents of the zip file to a folder.
2. Open "home.html" using a web-browser (Google chrome, Firefox, Opera..) & get cracking!


Hint : Only a valid key should give an output that makes some sense ;)
Objective : Find a valid key.

Difficulty: 3 - Getting harder
Platform: Multiplatform
Language: Unspecified/other

Published: 02. Dec, 2013
Downloads: 149

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Solutions

Solution by demoth, published 09. dec, 2013; download (3 kb), password: crackmes.de or browse.

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Discussion and comments

demoth
02. Dec 2013
No. I don't like coffee. Tea, please. :)
aodrulez
Author
03. Dec 2013
@demoth Then Tea it is for you ;) +10!
evaboy
08. Dec 2013
The code in "simple.js" is interesting but bring it to c/cpp, then it will be more juicy to taste.


downloadbrowseaodrulez's Aodrulez Crackme V1.0

Download crackme.zip, 16 kb (password: crackmes.de)
Browse contents of crackme.zip

Aodrulez's Crackme V1.0

Rules:
Well, no rules as such... Will be simply cool if you leave
the Crackme untouched & find the valid serial. :-)

Have phun!

Difficulty: 3 - Getting harder
Platform: Windows
Language: Assembler

Published: 10. Nov, 2008
Downloads: 525

Rating

Votes: 3
Crackme is nothing special.

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Solutions

Solution by mjesun, published 16. nov, 2008; download (3 kb), password: crackmes.de or browse.

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Discussion and comments

mjesun
10. Nov 2008
I already sent my tutorial. It's a very interesting crackme, different of the 99% crackmes uploaded here, with a very complicated keygenning function, a simple JE/JNE check and a big 'no patch' on top.


downloadbrowseap0x's Ap0x crackMe #1

Download cracking.zip, 9 kb (password: crackmes.de)
Browse contents of cracking.zip

VB 6 written crackMe with the Matrix

Difficulty: 3 - Getting harder
Platform: Unspecified/other
Language: (Visual) Basic

Published: 01. Dec, 2003
Downloads: 1273

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Solutions

Solution by {Sturm}, published 21. mar, 2004; download (15 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseap0x's Ap0x crackMe #2

Download crazy_clipboard.zip, 15 kb (password: crackmes.de)
Browse contents of crazy_clipboard.zip

VB crackware program

Difficulty: 4 - Needs special knowledge
Platform: Unspecified/other
Language: (Visual) Basic

Published: 01. Jan, 2004
Downloads: 1252

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Solutions

Solution by {Sturm}, published 18. mar, 2004; download (9 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseap0x's Ap0x MathCrackMe #1

Download matrix.zip, 23 kb (password: crackmes.de)
Browse contents of matrix.zip

Find the correct 9 digit code...

Difficulty: 4 - Needs special knowledge
Platform: Windows
Language: Borland Delphi

Published: 21. Jan, 2005
Downloads: 1645

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Solutions

Solution by CuTedEvil, published 21. jan, 2005; download (20 kb), password: crackmes.de or browse.

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Discussion and comments

blub
26. Dec 2012
very nice puzzle, thanks
[Wizzer]
27. Dec 2012
Solved, though brute forced with 4 constraints, takes about 40 seconds to get a key (single key is the only solution), but I think CuTedEvil's solution with randomization is pretty cool :)


downloadbrowseap0x's RLPack - New Year unpackme

Download Challange.zip, 39 kb (password: crackmes.de)
Browse contents of Challange.zip

RLPack - New Year challenge

This is the official RLPack unpackme. Unpacking is considered correct if the unpacked Unpack.exe can unpack crackme.fsg.exe. You can not add ap0x unpacking engine .dll files to unpackme to make it work. You can only use things located inside the challenge archive. Due to the fact that Unpack.exe uses psapi.dll challenge will work only on NT systems.
The first one to unpack the official unpackme will get RLPack Full Edition Personal license!

Contact email: ap0x.rce@gmail.com

Happy cracking ;)

Difficulty: 5 - Professional problem to solve
Platform: Windows 2000/XP only
Language: Assembler

Published: 31. Dec, 2006
Downloads: 752

Rating

Votes: 4
Crackme is nothing special.

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Solutions

Solution by haggar, published 03. jan, 2007; download (60 kb), password: crackmes.de or browse.

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Discussion and comments

Bswap
02. Jan 2007
Solved it. Look if apox's likes it.....
ap0x
Author
02. Jan 2007
Just a note... You have to unpack file Unpack.exe, that file (unpacked one) must remain functional and able to unpack crackme.fsg.exe
ap0x
Author
05. Jan 2007
Great work haggar


downloadbrowseapuromafo's Apuro little check Serialme #1 vb.net 4.5

Download Tarea_3_framework3.5.zip, 13 kb (password: crackmes.de)
Browse contents of Tarea_3_framework3.5.zip

Rules: Found the correct Serial, and create a mini kg in the lenguage as you can

Coded in vb.net VS2012 Framework 4.5

Best Regards Apuromafo

hint:
good Boy=Serial Correct
Bad boy=Validacion Erronea= wrong validation

Best Regars Apuromafo

pd:my native language is spanish :D

Difficulty: 1 - Very easy, for newbies
Platform: Windows
Language: .NET

Published: 04. Feb, 2013
Downloads: 468

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Solutions

Solution by jiml, published 11. dec, 2014; download (863 kb), password: crackmes.de or browse.

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Discussion and comments

anakha
04. Mar 2013
This is my first crackme i have ever tried, and i found the password in plain text using simple assembly explorer. Not sure if that was the way to crack it.
apuromafo
Author
11. Mar 2013
if solve the algo, not must be difficult do a keygen in any languaje there you can do but only are registred for that time, about the serial correct, there exist only 1 online valid, and many offline

Best Regards Apuromafo
Zananok
13. Mar 2013
Wow, pretty hard. Reversing it and encrypting it again and again.... sure doesn't help. Maybe i'm just a noob but I give it a 6/10 in difficulty, taking to account that i can see your whole encrypting process and I know .net really good.
Zananok
14. Mar 2013
Cracked.. but i didnt figure out the algorithm.. Actually i only tried for 40 minutes and decided to crack like i usually do..


Hint: Small exploit on the second message box ;)
Hint2: this Hint has nothing to do with keygens. If you are planning to keygen it.. i don't have a good advice.
apuromafo
Author
12. Jul 2013
the server online check was checked(posible to delete by te posible DOS in the online check (was someone try to D.O.S the web)..., not was like there exist a check online to the admin , there now not will exist solution of check online, until the dns checker will put again online, but if someone wana do a tutorial not have problem there exploit, crack too the file, best regards Apuromafo
stlcoder
06. Aug 2013
Gah! I was working through this and got to the part where it does the online check. I didn't realize the server was taken down :( Will it be coming back? I have a half finished tutorial!
apuromafo
Author
08. Aug 2013
maybe can coming back in other server but first must check for not d.o.s. again.

best regards Apuromafo
ralf1985
31. May, 08:42
1 - serial must not be empty
2 - serial must be 19 character
3 - serial must be seperated with ( - ) at positions 4,9,14
4 - positions ( 5, 10 ) must equals to F
5 - positions ( 0 , 18 ) must be numbers
6 - sum of position ( 0 , 18 ) must equals 10

valid serial :
1234-F789-F345-7899

Yeah that is quite easy but server isn't working anymore -_-


downloadbrowsearashrj's Crack Me 1.2 (RJ)

Download CrackMe_1.2.zip, 153 kb (password: crackmes.de)
Browse contents of CrackMe_1.2.zip

Hi all,

no rules for this crackme, do what you want.
Goodluck and send me your solution to arashrj@gmail.com

Difficulty: 1 - Very easy, for newbies
Platform: Windows
Language: (Visual) Basic

Published: 04. Feb, 2007
Downloads: 1443

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Solutions

Solution by mucki, published 19. feb, 2007; download (117 kb), password: crackmes.de or browse.

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Solution by pwn, published 19. feb, 2007; download (4 kb), password: crackmes.de or browse.

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Discussion and comments

mucki
08. Feb 2007
it's easy if you have the right tools :)


downloadbrowsearashrj's Crack Me 1.5 (RJ)

Download CrackMe_1.5.zip, 108 kb (password: crackmes.de)
Browse contents of CrackMe_1.5.zip

Hi all,

no rules for this crackme, do what you want.
Goodluck and send me your solution to arashrj@gmail.com

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: (Visual) Basic

Published: 19. Feb, 2007
Downloads: 612

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Solutions

Solution by deurus, published 01. aug, 2010; download (288 kb), password: crackmes.de or browse.

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downloadbrowsearashrj's Crack Me 1.6 (RJ)

Download CrackMe_1.6.zip, 85 kb (password: crackmes.de)
Browse contents of CrackMe_1.6.zip

Hi all,

no rules for this crackme, do what you want.
Goodluck and send me your solution to arashrj@gmail.com

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: (Visual) Basic

Published: 19. Feb, 2007
Downloads: 1383

Rating

Votes: 3
Crackme is boring.

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Solutions

Solution by r0ck, published 05. mar, 2007; download (23 kb), password: crackmes.de or browse.

r0ck has rated this crackme as nothing special.

Solution by Adjiang, published 02. mar, 2007; download (99 kb), password: crackmes.de or browse.

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Discussion and comments

saitob
24. Feb 2007
Wow, this looks like a tricky one! I'll see what I can do! ;)
mucki
25. Feb 2007
only md5 - that's all. very easy.
saitob
26. Feb 2007
Well, I can see that my name is turned to md5, but I cant find the serial for some reason. Maybe it's because it's 04.20am here (^.^)
mucki
26. Feb 2007
the serial is only a combination of some substrings of the md5 result


downloadbrowsearashrj's KeyGen Me 1.2

Download KeygenMe_1.2.zip, 84 kb (password: crackmes.de)
Browse contents of KeygenMe_1.2.zip

Rules:
1-) Make a keygen that fully works.
2-) No patching the serial routine ofcourse.
3-) Write a solution/tutorial.

Have fun :-)

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: (Visual) Basic

Published: 05. Aug, 2007
Downloads: 612

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Solutions

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Discussion and comments

saitob
05. Aug 2007
There is a problem with your KeyGenMe... It will not close! After the animation is done, it just stands there and I must shut it down by bruteforce :S


downloadbrowsearashrj's KeyGen Me 1.4

Download KeyGenMe_1.4.zip, 80 kb (password: crackmes.de)
Browse contents of KeyGenMe_1.4.zip

hi

Rules:
1-) Make a keygen that fully works.
2-) No patching the serial routine ofcourse.
3-) Write a solution/tutorial.

Have fun :-)

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: (Visual) Basic

Published: 12. Sep, 2007
Downloads: 548

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Solutions

Solution by ORacLE_nJ, published 17. jul, 2010; download (46 kb), password: crackmes.de or browse.

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downloadbrowseARCHANGEL's Against Driver

Download Against_Driver.zip, 4 kb (password: crackmes.de)
Browse contents of Against_Driver.zip

To crack this crackme your need to debug device driver's protection and break it without code modification and brute-force.
First,it seems it's quite hard do find crypted bites,but you need to see the SUB intruction to understand everything!
Valid pare:
AAAAAAAAAAAAAAAAAAAA
BBBBBBBBBBBBBBBBBBBB
But there not everything

Difficulty: 3 - Getting harder
Platform: Windows 2000/XP only
Language: Assembler

Published: 14. Jan, 2008
Downloads: 411

Rating

Votes: 5
Crackme is boring.

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Solutions

Solution by rAsM, published 07. feb, 2008; download (70 kb), password: crackmes.de or browse.

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Solution by _HellDashX_, published 22. jan, 2008; download (9 kb), password: crackmes.de or browse.

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Discussion and comments

soychino
15. Jan 2008
good idea,but the algo only consist of some simple xor and add/minus operations.
soychino
15. Jan 2008
a little hint,xor 3:)
ARCHANGEL
Author
19. Jan 2008
soychino,
Yes, that's true, but the idea is to test device driver protection - not the algo, by the way, did you submit your solution?
soychino
20. Jan 2008
I used the IDA to analyze the sys file,and I found it tries to clear the debugging register,no other anti measures were found,so how if I use a Int3 breakpoint?BTW,thanks for ur valid username and password wiithout which it may take me more time to analyze it:)
rAsM
20. Jan 2008
I'll submit my solution on February, i have no time now. There is no "protection" if you clear the drx. The driver is easy to understand but for people witch never had debugged a driver the crackme will be harder.
_HellDashX_
21. Jan 2008
Solution submit, :)
rAsM
22. Jan 2008
Hello _HellDashX_ the name can be shorter than 20 chars but serial must this size BBBBBBBBBBBBBBBBBBBB
i've sent you my serial.
_HellDashX_
23. Jan 2008
rAsm, yes, your serial work using 4 chars in the name, but only in the first check, :)

If the crackme will check 2 or more times the serial/name you can get in the second pass nothing, and in the 3 pass you can get a exception and show the bad message.

I send you the codes in the 2 pass and 3 pass using the name/serial that you send me.
rAsM
23. Jan 2008
Yes i know this bug,names shorter than 20 only work one time. ARCHANGEL forgot to reset the buffers. Anyway the 2 solutions are right.
Dspider0
08. Feb 2008
why does my OllyDBG always pause the program and i get an error everytime i run? error is always about the origin address


downloadbrowseARCHANGEL's HiddenCrackme1

Download HiddenCrackme1.zip, 143 kb (password: crackmes.de)
Browse contents of HiddenCrackme1.zip

Hi, here is the very simple protection with obfuscation. It's not uncrackable, you can do it easy. Still it can show you the ability to make your reversing much harder if you are not ready for the binary code deobfuscation.

Of course, only keygen is a valid solution.

I wish you luck.

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: C/C++

Published: 26. Oct, 2015
Downloads: 271

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Solutions

Solution by acruel, published 29. oct, 2015; download (2 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowsearintel's MineLock I

Download MedusaChallenge.zip, 26 kb (password: crackmes.de)
Browse contents of MedusaChallenge.zip

This is a $300 challenge. Below is brief information. For a full description, please visit http://minelock.blogspot.com

Description:
This is a small Pocket PC program which shows some medusas moving around the screen and eating each other. The original section of code that controls the movement of the medusas has been transformed by MineLock I technique. You will not find plain assembly instructions changing the positions of the medusas. Also, the transformed code will move the medusas correctly only when the Pocket PC is running at its maximum speed or it will freeze the medusas or quit the program otherwise.

Requirements:
The challenge is reconstruct the original code which changes the positions of the medusas and patch the program for it to run correctly with all speeds of the Pocket PC. You must not simply guess and rewrite the code. You must DEDUCE the original code from the executable file. That is, explain clearly how you get the original code by analyzing the executable file only and support your arguments by reference to the assembly code of the program. You can do it in anyway using any tools of your choice.

Usage:
There are an executable file and two license files. For the program to run correctly, rename the corresponding .lic file to MineLock.lic, put it in the root folder, and run the executable file. You can try running the program with a different speed of the Pocket PC or with a wrong license file to see the medusas freezed.

Difficulty: 9 - You can't solve this yourself :)
Platform: Unspecified/other
Language: C/C++

Published: 30. Mar, 2006
Downloads: 675

Rating

Votes: 5
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Solutions

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downloadbrowsearjani's crackme4

Download arjani_cm4.zip, 22 kb (password: crackmes.de)
Browse contents of arjani_cm4.zip

nags (vb)

Difficulty: 6 - Hard, for very professionals only
Platform: Unspecified/other
Language: (Visual) Basic

Published: 21. Jun, 2001
Downloads: 2092

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Solutions

Solution by figugegl, published 21. jun, 2001; download (15 kb), password: crackmes.de or browse.

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downloadbrowsearjani's crackme 0.3

Download arjani_cm1.zip, 4 kb (password: crackmes.de)
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name/serial (vb)

Difficulty: 6 - Hard, for very professionals only
Platform: Unspecified/other
Language: (Visual) Basic

Published: 09. Feb, 2001
Downloads: 2014

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Solutions

Solution by noptical, published 09. feb, 2001; download (2 kb), password: crackmes.de or browse.

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downloadbrowseArkantos's Crackme3

Download crackme.zip, 7 kb (password: crackmes.de)
Browse contents of crackme.zip

Try to crack it.It is my keygenme...Now You have to find out serials for your name...
The Name is "as YOU Wish".. But the Serials Are based on your name and the serial.
You have to find the last two serials..
I think it's not so easy... You can try...
Sorry for my Bad English..

Packer: You have to Find..
Used MS Dos to write this thing
Thanks to Everyone...
You can Punish me at r_u_s_h_e_d@myself.com
Bye Bye...

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: Unspecified/other

Published: 27. Oct, 2010
Downloads: 392

Rating

Votes: 5
Crackme is boring.

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Solutions

Solution by hasherezade, published 11. nov, 2010; download (231 kb), password: crackmes.de or browse.

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Discussion and comments

Arkantos
Author
29. Oct 2010
Anyone trying? Please write a solution
Arkantos
Author
30. Oct 2010
Need any help over there? I'm ready to help. I'm waiting for a solution. Please answer me.
|sas0|
01. Nov 2010
solution is on the way, realy nice idea for crackme, it was fun reversing it
Tasin
02. Nov 2010
I've Keygened your Crackme in 5 minutes. but i can't submit a solution because i lost my internet connection and i'm writing from my mobile. So i can't submit it very soon... So i'll try to submit it later... Any way nice Crackme Arkantos..
Tasin
07. Nov 2010
Awesome Crackme. Written a tutorial and keygen in batch. Similiar to serial Crackme. But a little deferent. Thank to mr. Exodia for first solution. Submitting the solution quickly... Hope you like it. Awesome Crackme man...
Frighten426
08. Nov 2010
Good Crackme.... Really learnt from it....


downloadbrowseArkantos's Crackme5

Download Crackme5.zip, 102 kb (password: crackmes.de)
Browse contents of Crackme5.zip

This is my First Crackme Written in Visual Basic. You've To find serial and reg With Id for your name.
Mission:
Patch those nags
write A keygen.
no selfkeygen.
Write a nice solution

Easy Crackme...

It's Packed

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: (Visual) Basic

Published: 23. Nov, 2010
Downloads: 388

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Solutions

Solution by deurus, published 06. dec, 2010; download (319 kb), password: crackmes.de or browse.

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Discussion and comments

deurus
24. Nov 2010
deurus
737572756564
210579ioO-avB-pM
ua921N737572756564pnqVTm

If i have any time, i will do the tuto
Arkantos
Author
24. Nov 2010
It was so fast deurus! Waitin for you your tutorial....
woodoo34tr
26. Nov 2010
woodoo
6F6F646F6F77
210579ioO-avB-pM
ua921N6F6F646F6F77pnqVTm


downloadbrowseArkantos's Crackme7

Download Crackme7.zip, 23 kb (password: crackmes.de)
Browse contents of Crackme7.zip

This is my Second Crackme Written in Visual Basic. You've To find serial and reg With Id for your name.
Mission:
Enable Check Button.
Patch those nags
write A keygen.
no selfkeygen.
Write a nice solution

Easy Crackme...

Difficulty: 3 - Getting harder
Platform: Windows
Language: (Visual) Basic

Published: 23. Nov, 2010
Downloads: 285

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Solutions

Solution by deurus, published 06. dec, 2010; download (163 kb), password: crackmes.de or browse.

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Discussion and comments

Arkantos
Author
25. Nov 2010
Anyone trying? Is it too hard? I think not...
deurus
26. Nov 2010
Name: deurus
Lastname: EUFUDTJR
Organization: FUDUEFUE25I
Serial: s15tauo737572756564zmN
ID: 55554464
---------------------------------------------
Sorry but the manual will have to wait
tilosag
02. Dec 2010
Please give me some hint how to enable "Check it!". Seem's like it's being disabed during runtime and my ideas with bp EnableWindow does not work.
Arkantos
Author
02. Dec 2010
You can try resource hacker(res hacker).... Load Crackme and then enable the check button...
deurus
02. Dec 2010
Reshacker can't enable the "labels"
Arkantos
Author
03. Dec 2010
So what are the other ways to enable "labels"? I never tried so hard Vb crackmes.. Would you like to tell me deurus?
deurus
03. Dec 2010
Hi Arkantos!

I send a solution to explain this, but in resume, with vb reformer we can enable buttons and change the interval of timer to zero.

In this case the buttons are labels, and the way to enable they, is patching with olly.
Arkantos
Author
04. Dec 2010
Thanks deurus, waiting for tuto!
Tasin
07. Dec 2010
Nice try Arkantos¿ Make you crackmes a little harder on future.


downloadbrowseArkantos's NameGenMe!

Download NameGenMe!.zip, 52 kb (password: crackmes.de)
Browse contents of NameGenMe!.zip

Try to crack it.It is my keygenme (number two)...Now i'll give you my pass and you have to find your name..
The serial is random... It's encrypted. So at first You've to Decrypt it!!
You have to find two name..
Works on XP.
Don't know about others.!!
Must have Vbscript Host.>.>
You can post for Help!!
It's not easy i think.
your mission:
1. Make a keygen.
2. Write a Cute solution.

Sorry for my bad English..

Packer: You have to Find..
Thanks to Everyone...
You can Punish me at r_u_s_h_e_d@myself.com
Bye Bye...

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: Unspecified/other

Published: 23. Nov, 2010
Downloads: 284

Rating

Votes: 4
Crackme is quite bad.

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Solutions

Solution by deurus, published 12. dec, 2010; download (245 kb), password: crackmes.de or browse.

deurus has rated this crackme as nothing special.

Solution by draww, published 13. dec, 2010; download (23 kb), password: crackmes.de or browse.

draww has rated this crackme as boring crap.

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Discussion and comments

Arkantos
Author
05. Dec 2010
Anyone trying? Is it soo boring?
Tasin
07. Dec 2010
No it's not! Hmmm i've done it 60%. So rest of it is confusing, it's kinda hard. It writes random number to a file, makes it a variable, then checks specific numbers and goes to another variable? I think i'll write a solution very soon.
draww
08. Dec 2010
there is nothing special.. only a batch file compiled with exescript. solved everything about it, but it's so boring man.. why don't you delete the leftovers (i mean vbs files & jkf file) you only hide them under system folders..
Arkantos
Author
09. Dec 2010
So what kind of crackmes you like?
draww
09. Dec 2010
well, it has some nice features but i was answering your 1st question.. and i still think it's boring ;) keygening is really easy, we only have to modify your decrypted batch to show us the names. btw thanks for the effort mate.
Arkantos
Author
10. Dec 2010
it's okay draww...... I'll try my best to write some interesting crackmes.....
deurus
10. Dec 2010
I suposed that the script is batch [faf.bat] but even invert the jump to view the crackme i dont view the batch file in nowhere.

curious!
deurus
11. Dec 2010
Im near!!!!

Serial1: 321358541-42486224-421724624-42827941
Name1: n4nt8aroi42

Serial2: 5210348-3514593-13215188-5342521
Name2: r04ck48-351oc8oc

only for curious because the serials are random ;-)
draww
11. Dec 2010
well deurus, if you successfully deobfuscated the batch file, you'll have everything that you need :))
deurus
12. Dec 2010
@draww: I finally finished ;-)


downloadbrowseArkantos's Serial

Download First_Crackme.zip, 7 kb (password: crackmes.de)
Browse contents of First_Crackme.zip

Try to crack it.It is my First Crackme... You have to find out Five Serials....
The Name is "as you wish".. But the Serials Are the same. It's easy... You can try...
Sorry for my Bad English..

No Packer
Used MS Dos to write this thing
Thanks to Everyone...
You can Punish me at r_u_s_h_e_d@myself.com
Bye Bye...

Difficulty: 1 - Very easy, for newbies
Platform: Windows
Language: Unspecified/other

Published: 16. Oct, 2010
Downloads: 789

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Solutions

Solution by Mr. eXoDia, published 19. oct, 2010; download (9 kb), password: crackmes.de or browse.

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Discussion and comments

Mr. eXoDia
18. Oct 2010
With the name "cracker" your serials can be:

1. cracker57f8s+-e@s\/
2. cracker57f8s+-e@s\/oneld-561-fch@rd
3. cracker123fa4v5bwh@rd
4. h@rde@s\/6n6o8t4h4i6n4gcracker57f8s+-e@s\/
5. cracker57f8s+-e@s\/h@rde@s\/6n6o8t4h4i6n4gcracker57f8s+-e@s\/e@s\/h@rd

I'm writing a solution + a keygen in batch for you right now!

Mr. eXoDia // T.P.o.D.T 2010
http://tpodt.tk
http://forum.tpodt.tk
Xspider
18. Oct 2010
well you can find the main batch file in: %temp%\CF.tmp
Mr. eXoDia
19. Oct 2010
ok In my soltution i just open the file in notepad :p
And be4 I forget: I coded a keygen in batch :p
dload it here (if you are intersted): http://www.mediafire.com/?c5nkw5h22pqito6
Arkantos
Author
20. Oct 2010
Thanks Mr. eXoDia... I think more crackme will be great.
Tasin
07. Nov 2010
Awesome Crackme Arkantos. Better than Crackme3.. Wrote an keygen in batch...
Frighten426
08. Nov 2010
Awesome... I agree with Tasin... Better than Crackme3...
promix17
30. Dec 2010
Thank's for this CrackME))) It's the first I've solved!!!
Arkantos
Author
30. Dec 2010
Crackmes are to be solved. I hope you enjoyed it :-) i'd be glad if you enjoyed it.


downloadbrowseArkantos's Serial2

Download Second_Crackme.zip, 7 kb (password: crackmes.de)
Browse contents of Second_Crackme.zip

Try to crack it.It is my Second Crackme...Now You have to find out Six Serials....
The Name is "as YOU Wish".. But the Serials Are based on your name.I think it's not so easy... You can try...
Sorry for my Bad English..

Packer: You have to Find..
Used MS Dos to write this thing
Thanks to Everyone...
You can Punish me at r_u_s_h_e_d@myself.com
Bye Bye...

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: Unspecified/other

Published: 27. Oct, 2010
Downloads: 410

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Solutions

Solution by hasherezade, published 11. nov, 2010; download (222 kb), password: crackmes.de or browse.

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Solution by havaliza, published 11. nov, 2010; download (466 b), password: crackmes.de or browse.

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Discussion and comments

Xspider
27. Oct 2010
run -> %Temp% --> A6.tmp ;)
Arkantos
Author
28. Oct 2010
Anyone trying? Are you trying to crack it. I don't see much comments.
Arkantos
Author
28. Oct 2010
Anyone trying to solve it? I think it's easy. A little trick will solve it.
Mr. eXoDia
28. Oct 2010
Im trying this right now and I will try to write a nice solution
|sas0|
29. Oct 2010
nice idea with batch file, as soon as I write decent tutorial I will upload solution
Arkantos
Author
30. Oct 2010
Need some help over there? I'm ready to help.
slackwarshik
30. Oct 2010
dr.web say that this crackme is suspicious))
Arkantos
Author
31. Oct 2010
Need any tips? I'm ready to help you. Just ask.


downloadbrowsearminb's DevilMayCrack #1

Download DMC1.zip, 67 kb (password: crackmes.de)
Browse contents of DMC1.zip

Try to crack this CrackMe. Patching is not allowed!
It's my first btw. Feedback would be nice :D

Have fun!

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: (Visual) Basic

Published: 02. Dec, 2008
Downloads: 460

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Solutions

Solution by ORacLE_nJ, published 12. dec, 2009; download (22 kb), password: crackmes.de or browse.

ORacLE_nJ has rated this crackme as quite nice.

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Discussion and comments

mjesun
03. Dec 2008
Is keyfishing / selfkeygenning allowed?
arminb
Author
03. Dec 2008
If you write a nice tutorial, why not. Never have seen how to do this. But it would be also great if someone gets the algo and write a keygen.
arminb
Author
04. Dec 2008
There are 6 solutions in queue since 3 days! I don't know if this is normal, but i can't wait to see some solutions. So everyone who has solved this, please load it somewhere up and send me a messagge. Thanks a lot.
Forgive me if i did a mistake.
mjesun
05. Dec 2008
I already solved it, but I'm making a very very lovely keygen, using the "?" button of your crackme to show the valid serial for your keygen.

I know that it's not the easiest solution from far, but with this method I will develop pieces of code to make a generical interface for __vbaStrCmp / __vbaVarTestEq crackmes.

;) be patient my friend
ORacLE_nJ
13. Dec 2009
Hi guys..

How is my soln??

I'm sorry i dont know to program a GUI..

:-)
ORacLE_nJ
13. Dec 2009
Hi guys..

How is my soln??

I'm a beginner in programming. I have studied only console based programs...
I'm sorry i dont know to program a GUI..

:-)
dahiphop
31. Dec 2009
Name: DAHipHop
Serial: F869-5341-168D-8E76
=> Crackme easy for newbie
arminb
Author
18. Jul 2010
thanks for the solution ORacLE_nJ!
very nice


downloadbrowseArtfulwave's AUZ_Cavora

Download AUZ_Cavora.zip, 1212 kb (password: crackmes.de)
Browse contents of AUZ_Cavora.zip

Hey guys Here is a new Keygenme
This keygen does not seem to be like the others
======================================
Protection future:
===============
Anti-Noobz
Anti-Serail Fishing
Long-Serial-Generator
Discover the other futures on your own
Of course i have coded the functions on my own.
======================================
Rules:
=====
NO PATCHING //Allowed in removing the protection functions
NO SERIAL FISHING (Anti-SerialFishing makes the serail wrong on other PCs)
Of course the only valid solution is a keygen
=======================================
Artfulwave@gmail.com

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: Borland Delphi

Published: 26. Mar, 2013
Downloads: 172

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Solutions

There are no solutions to this crackme yet. Have you solved it? Please write a tutorial and submit it here!

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Discussion and comments



downloadbrowseArtfulwave's CanYoUDoIt? Keygenguru

Download Keygenme_ZIP.zip, 1197 kb (password: crackmes.de)
Browse contents of Keygenme_ZIP.zip

Indeed this is my first keygen so i will be too glad to take your feedback and advises so keep commenting :).

Patching is allowed in case you are going to make a patcher.exe
Keygen is a perfect solution
A valid serial is accepted ( 4 IDs ,Passwords ).

if you could help the newbies by a tutorial this will be too great

Thanks for reading

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: Borland Delphi

Published: 08. Mar, 2013
Downloads: 372

Rating

Votes: 4
Crackme is quite nice.

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Solutions

Solution by Ice_cracked, published 08. apr, 2013; download (1515 kb), password: crackmes.de or browse.

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Solution by iSSoGoo, published 13. mar, 2013; download (54 kb), password: crackmes.de or browse.

iSSoGoo has rated this crackme as quite nice.

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Discussion and comments

iSSoGoo
08. Mar 2013
Short question: What do you mean with "Patching is allowed" (Description) and "Patching is NOT allowed" (Keygen). Actually patching is pretty easy (maybe 1 or 2 bytes only) thus writing a patcher or a loader should work, you could even use a patcher-builder (dUP 2 etc.). Is that what you mean, because that would be too easy for a 2/10 ;)
Artfulwave
Author
08. Mar 2013
As i wrote it`s my first keygen me so i wanted to see the solution of everyone but OK Patching is not allowed :).Give me your advice about how to change the description! xD
iSSoGoo
09. Mar 2013
Just write "Do a keygen, NO patching allowed" I think that will be totally ok ;)

BTW: I submitted a solution a few hours ago, it takes some time, because the solutions are all checked by a moderator if I should send you the solution, just write me a PM ;)
Artfulwave
Author
09. Mar 2013
I will write a PM to you :)
bearchik
11. Mar 2013
Solved.
14-8--7-Bearchik-Art
Artfulwave
Author
12. Mar 2013
Would you make a keygen , Wouldn`t you ?
bearchik
13. Mar 2013
Solution and keygen was sent on moderation.
Artfulwave
Author
13. Mar 2013
Nice :) Keep up the good work bro
ideku_nih
12. Apr 2013
I don't know.. i just found this
10-4--11-atit-Art
Artfulwave
Author
15. Apr 2013
You meant "Cant make a keygen ?" Or ?


downloadbrowseArtfulwave's Need a little brain ?

Download SwampAttackKeygenme.zip, 1246 kb (password: crackmes.de)
Browse contents of SwampAttackKeygenme.zip

A new keygen me the 3rd one :).Might be hard for newbies

your solution must be a keygen + src + tut

Patching is not allowed is unaccepted

Thanks for reading Enj0y Cr4cKiNg

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: Borland Delphi

Published: 20. Mar, 2013
Downloads: 321

Rating

Votes: 3
Crackme is boring.

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Solutions

There are no solutions to this crackme yet. Have you solved it? Please write a tutorial and submit it here!

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Discussion and comments

gregorbyatt@hotmail.com
25. Mar 2013
they are practice cracking programs im guessing ?
Artfulwave
Author
25. Mar 2013
Yeps , that`s it. Reverser`s Ground!
yo-mismo
01. Apr 2013
Thank you, was easy :)

i'm spanish, but i gonna try write a tutorial
loizos
02. Apr 2013
I love it's music :)
Artfulwave
Author
03. Apr 2013
yo-mismo<-- Thanks :)
Iam glad to hear that you have liked it
I cant wait till i see your Tut + keygen ^_^
Artfulwave
Author
03. Apr 2013
Loizos<--- Thanks :)
I love this music too
ideku_nih
16. Apr 2013
I search for luck, and i can't find it. Are there any converter ASM to BAS?? damn i must learn from begin..
Artfulwave
Author
21. Apr 2013
Tell me what are you looking for ? I might help :)
jmper
11. May 2013
try empty username and serial
lol :D


downloadbrowseArtfulwave's NeverGotOwned

Download NeverGotOwned.zip, 1036 kb (password: crackmes.de)
Browse contents of NeverGotOwned.zip

Feedback , Comment.

Here is the rules:

The only valid solution is a keygen

You might include :

Keygen + src : tutorials for beginners

Thanks _ Artfulwave

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: Borland Delphi

Published: 20. Mar, 2013
Downloads: 207

Rating

Votes: 4
Crackme is quite bad.

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Solutions

There are no solutions to this crackme yet. Have you solved it? Please write a tutorial and submit it here!

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Discussion and comments

redoC
13. May 2013
Does this have real solution? Serial requires UNICODE chars like 0xFFAF ?
mopy
13. May 2013
yes, redoC is right.
This keygenme has no "normal-looking" serials for every username. It's impossible ..
zairon
Moderator
13. May 2013
If you really think there's a flow inside the serial generation scheme you can write a tutorial explaining everything in details. We don't have any kind of problem accepting something like that :)
hPl0w
20. May 2013
is not for noobs, i am one (:.

PD : Nice Crackme.
Artfulwave
Author
29. May 2013
Sorry , was busy the last few days..
redoC : it got a solution
mopy : Yeah , it has..If you want to know why PM me
zairon: got a question about it PM me
hPl0w: i thought it`s easy for noobs i was going to choose it`s difficulty as 1.
.. there is like 11 function in this keygen for serial generating/validation.. Thanks..


downloadbrowseArthi's ArthisCrackme1.02Final

Download Arthis_Crackme_NX_1.02_Final.zip, 105 kb (password: crackmes.de)
Browse contents of Arthis_Crackme_NX_1.02_Final.zip

Find the valid Serial !

Difficulty: 6 - Hard, for very professionals only
Platform: Windows
Language: (Visual) Basic

Published: 23. Nov, 2004
Downloads: 1949

Rating

Votes: 4
Crackme is boring.

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Solutions

Solution by deroko, published 15. oct, 2005; download (43 kb), password: crackmes.de or browse.

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Discussion and comments

deroko
13. Oct 2005
I got key but it doesn't do anything, so I have to terminate app by typing wrong key... is this a bug or feature???
bigboss1988
13. Oct 2005
oh very hard :(

i tried to found OEP

00411216 EB 01 JMP SHORT Arthis_C.00411219

Or

0041121C E8 01000000 CALL Arthis_C.00411222

i don't know where's OEP ?

i ill stay to submit ur solution deroko :)
deroko
14. Oct 2005
yah that's it, if serial is incorect it prints error msg if serial is right nothing happens, form is created after getkey/inputkey check, and this is really huge huge serial =)
bigboss1988
15. Oct 2005
Wow deroko good job;)

i have problem when i setup DriverStudio3.2 on winXP

sp2 Soft-ice doesn't work ?!!

cheers :)


downloadbrowseArthi's Arthis Keygenme A.0.3Final

Download ArthisKeygenmeA0.3Final.zip, 8 kb (password: crackmes.de)
Browse contents of ArthisKeygenmeA0.3Final.zip

Write a Keygen !

Difficulty: 8 - *VERY VERY* hard
Platform: Windows
Language: (Visual) Basic

Published: 12. Oct, 2005
Downloads: 1156

Rating

Votes: 4
Crackme is nothing special.

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Solutions

Solution by MACH4, published 21. feb, 2009; download (1328 kb), password: crackmes.de or browse.

MACH4 has rated this crackme as awesome.

Solution by ultrasound, published 13. oct, 2005; download (16 kb), password: crackmes.de or browse.

ultrasound has rated this crackme as boring.

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Discussion and comments



downloadbrowseArthi's Arthis Keygenme A0.2

Download ArthisKeygenmeA0.2.zip, 12 kb (password: crackmes.de)
Browse contents of ArthisKeygenmeA0.2.zip

Write a Keygen !

Difficulty: 7 - Very hard
Platform: Windows
Language: (Visual) Basic

Published: 09. Oct, 2005
Downloads: 866

Rating

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Solutions

Solution by deroko, published 12. oct, 2005; download (46 kb), password: crackmes.de or browse.

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Discussion and comments

IronBOSS
09. Oct 2005
Runt-time error '5':
Invalid procedure call or argument

Win XP Pro.
Ppl please check your crackmes before submit.
deroko
09. Oct 2005
works fine on xp sp2...
HMX0101
10. Oct 2005
its working on winxp sp2, without any problems
Arthi
Author
10. Oct 2005
@ IronBOSS :

Please download the newest VB6-Runtimes !

Greetz
Arthi
deroko
11. Oct 2005
maybe you should make better keycheck routine, this one was easy to self-keygen... and that is not something that should happen in 7/10 rated crackmes...


downloadbrowseArthi's CrackmeNX2Final.exe

Download CrackmeNX2Final.exe.zip, 11 kb (password: crackmes.de)
Browse contents of CrackmeNX2Final.exe.zip

Crack it or find the only one valid Serial !"

Difficulty: 1 - Very easy, for newbies
Platform: Windows
Language: (Visual) Basic

Published: 24. Jun, 2005
Downloads: 1279

Rating

Votes: 3
Crackme is nothing special.

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Solutions

Solution by El_PuPaZzArO, published 13. sep, 2006; download (56 kb), password: crackmes.de or browse.

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Solution by EsKiMo, published 27. jun, 2005; download (25 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseArturDents's Crackme #1

Download ad_cm1.zip, 1 kb (password: crackmes.de)
Browse contents of ad_cm1.zip

Serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 21. Jul, 2002
Downloads: 3220

Rating

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Solutions

Solution by bRaiN_faKKer, published 08. oct, 2002; download (827 b), password: crackmes.de or browse.

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Solution by CuTedEvil, published 22. jul, 2002; download (938 b), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseArturDents's Crackme #2

Download ad_cm2.zip, 2 kb (password: crackmes.de)
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Name/Serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 21. Jul, 2002
Downloads: 3453

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Solutions

Solution by CuTedEvil, published 22. jul, 2002; download (3 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseArturDents's Crackme #3

Download ad_cm3.zip, 192 kb (password: crackmes.de)
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Name/Serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 21. Jul, 2002
Downloads: 3442

Rating

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Solutions

Solution by D4ph1, published 08. oct, 2005; download (33 kb), password: crackmes.de or browse.

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Solution by CuTedEvil, published 22. jul, 2002; download (6 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseArturDents's Crackme #4

Download ad_cm4.zip, 169 kb (password: crackmes.de)
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Name/Serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 21. Jul, 2002
Downloads: 3107

Rating

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Solutions

Solution by D4ph1, published 05. oct, 2005; download (79 kb), password: crackmes.de or browse.

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Solution by Lesco, published 25. jul, 2005; download (241 kb), password: crackmes.de or browse.

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Solution by cronos, published 06. sep, 2002; download (38 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseArturDents's Crackme #5

Download ad_cm5.zip, 131 kb (password: crackmes.de)
Browse contents of ad_cm5.zip

Name/Serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 21. Jul, 2002
Downloads: 2868

Rating

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Solutions

Solution by ShadowKat, published 01. aug, 2002; download (1 kb), password: crackmes.de or browse.

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Discussion and comments



downloadascii's kgm1

Download kgm1.tar.gz, 2 kb

Another KeyGenMe but for Linux.

Wrote in C and compiled with GCC.
This x86 Linux binary is 32-bit and need libc6.

Rules:
- No patching.
- Write a keygen.

Difficulty: 1 - Very easy, for newbies
Platform: Unix/linux etc.
Language: C/C++

Published: 05. Dec, 2007
Downloads: 3293

Rating

Votes: 7
Crackme is nothing special.

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Solutions

Solution by magnanimous, published 26. may, 2008; download (9 kb), password: crackmes.de or browse.

magnanimous has rated this crackme as quite nice.

Solution by whats, published 21. may, 2008; download (4 kb), password: crackmes.de or browse.

whats has rated this crackme as quite nice.

Solution by pof_es, published 19. dec, 2007; download (7 kb), password: crackmes.de or browse.

pof_es has rated this crackme as quite nice.

The submission of solutions is closed.

Discussion and comments

bierik
25. Nov 2012
Very nice and very well suited for a newbie such as myself.
vendramini
06. Feb 2013
Good one, helped me out a lot. Specially the solutions. Thank you!
ShadowyViper
05. Sep 2013
Very interesting, first crackme for me, and now that i discover on my own how does it work i'm writing the keygen :D thanks for the fun
Noteworthy
05. Dec 2013
Cracking done ! Thanks for the keygen me.


downloadbrowseastigmata's Bruteforceme#1_astigmata

Download bruteforceme#1_astigmata.zip, 30 kb (password: crackmes.de)
Browse contents of bruteforceme#1_astigmata.zip

Hi crackers,
this is my first crackme
I made it easy and with sources codes (54 lines, not packed)
sometimes bruteforce is required
that's why I want you try this one.
I want the good key and a working bruteforce

I hope you enjoy

astigmata

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: Assembler

Published: 24. Feb, 2006
Downloads: 1292

Rating

Votes: 10
Crackme is boring.

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Solutions

Solution by andrewl.us, published 27. dec, 2008; download (340 kb), password: crackmes.de or browse.

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Discussion and comments

Dahaka
25. Feb 2006
holy smoke!
you should be running on some super computer to go over bruteforcing some pass phrase with 100000000 loop!
by 1583242846 possibility!
NexusC
25. Feb 2006
hehe, would have been easier if we knew what range of chars to use ;) since " " - "~" is kinda heavy but can't be excluded if u wanna have 100% accuracy..
HMX0101
25. Feb 2006
i think that loops can be made for separately...
astigmata
Author
25. Feb 2006
there are only numbers in the good key
1,2,3,4,5,6,7,8,9,0
for the size of the key, check the algo
:)
HMX0101
25. Feb 2006
i need a number that parsed by the algorithm of the crackme has equal to 0D5446474h ?
NexusC
25. Feb 2006
ok, thx :P that will reduce the needed time alot :P
astigmata
Author
25. Feb 2006
yes hmx0101, but you can't reverse it because you don't know value of ebx before the XOR
that's why it's called brutforceme :D

if you find without bruteforce, go buy a lottery ticket.
Rambo
25. Feb 2006
hmm.. if we can find the value of CL then we can make keygen ;) but i don't have time to math ;)
Rambo
25. Feb 2006
sorry. no keygen ,but brute algo
NexusC
25. Feb 2006
lol, this might take a few weeks depending on the starting number in the key xD
HMX0101
25. Feb 2006
that sounds easy :D
~raj
27. Feb 2006
Keycode is 8 digit no from 0000 0000 to 9999 9999.
For each number it loops for 1 0000 0000 (5F5E100) times.

for each iternation it takes around 70 seconds.

So total time reqquired for brute force method will be:

1 0000 0000 * 1 0000 0000 * 70
= 700000000000000000 sec
= 11666666666666666.67 min
= 194444444444444.44 hr
= 8101851851851.85 days
= 22196854388.63 yrs !!!!! ;^*)

What do you think ?
Rambo
27. Feb 2006
each iteration 70 sec ????
Kerberos
27. Feb 2006
~Raj: Whole serial check takes 5 seconds on my PDA so you really need new computer :)

And if you're calculations are right for your computer, then you need to wait (100000000 * 70) seconds until your serial code is checked in this CME ...
NexusC
27. Feb 2006
hehe, to know the starting number in the key would shorten the brute by a load of weeks on my comp ;)
astigmata
Author
27. Feb 2006
I say 3 years if you test every serial without found the correct one.
but you are 6000 here, if someone makes a good bruteforce (like SETI@home lol), with many ranges, you ll be able to defeat this level1 crackme
:D
~raj
28. Feb 2006
70 sec time taken was for checking 100 numbers in loop ;-( mistake there

So total time will some down by factor of 100
NexusC
01. Mar 2006
no matter how good brute u code i think ppl will skip this one coz it's just too time consuming to dedicate the computer resources for a lvl1 crackme ;) so a shorter key would have been better imho :)
costy
03. Mar 2006
is it possible to do a bruteforcer changing to source code?
astigmata
Author
04. Mar 2006
to do a bruteforce, you need to add a loop, that's all
ManSun
26. Mar 2006
Yes its very easy but...
1 cobmination / 1 second
8 digits password = 100000000 combinations = 100000000 sec = 1666666 min = 27777 hours = 1157 days = ~3,1 years :-D
Shism
27. Mar 2006
Instead of doing that use random brutefoce
phueghy
27. Mar 2006
But random BF does not increase the chance of finding the right key. And you have to make sure not to check some numbers twice.
It would be easier if we knew the first one or to digits though :-)
Shism
29. Mar 2006
It does increase the chance of finding the right key...
phueghy
29. Mar 2006
Why? The Chance of finding the right key is 1:100000000, no matter if you are searching randomly or linear. It could just as well be 500000004 as it could be 81640724.
Shism
29. Mar 2006
Why becuase chance you find the right key increases. Let's say the key is 17 chars long

So you go in a linear form testing each combination. That's the way you want to do it. So you go through every combination of chars from the 1 char long length to 17 char long length. RBF tests every combination of keys randomly.

So if lets say the key is 17 chars long, with linear bruteforce it would take forever, however the chances that a random bruteforce finds the key is much higher than linear bruteforce.

Lets say the key is ^KC*.&>)D_?F)+"F(D*
... So the chances of linear bf finding they key can be stated. An estimate can be made. However,on random bruteforce an estimate can't be made. There is no chance for random bruteforce. The chances of finding the right key are 100% for both. Bruteforcing the key gaurentes finding the right key. Bruteforcing will increase your chances.
Shism
29. Mar 2006
*Random bruteforcing will increase your chances of finding the right key
TDC[NL]
24. Apr 2006
hint: EBX must be 85AE3E6C in hex at 00401070 after the loop :) maybe some guy can now do it?
Ox87k
24. Apr 2006
ebx must be 85AE3E6C only if eax is 50EA5A18... or not?
BugHunter
24. Apr 2006
to be honest, you have a point there, i'm trying 2 figure it out but i'm sleepy and thinking is hard now ^^
BugHunter
24. Apr 2006
yes you are right 0x87k! sorry for my wrong post :-D
still trying to find a way to reverse hehe
BugHunter
24. Apr 2006
i made some comments on my bruter source code, check it out:

;EAX must be 0xD5446474 at the end
;let's say EAX = 0x52212755 and EBX = 0x87654321 (xor EAX with 0xD5446474)
;then before the encryption algo you need to have valid numbers in ASCII
;hmmm, so lets initialize the registers and let's try to bruteforce a
;valid alpha numeric serial

;so EAX = random hex number, EBX = xor 0xD5446474 with the random EAX
;then do the loop

;now check if EBX is ALPHA NUMERIC

maybe helps coding a bruter? i've coded one and it's now bruting :D
BugHunter
24. Apr 2006
tip: if you dont brute with a random value, then increase by one a value each loop, but begin with 0x0000FFFF because if you XOR a dword with something lower than 0x00010000 than the upper characters will NEVER be alpha numeric, you could even research/think more about it and code a good bruter
BugHunter
25. Apr 2006
any 1 tried yet?
SoN
25. Apr 2006
I wrote a working brute forcer but the moderator says that the algo can be modified to run quicker. I'm not quite sure how yet but I'm looking at it.
indomit
25. Apr 2006
TDC[NL], if ebx must be 85AE3E6C in hex at 00401070 after the loop, then when ecx=1000000-4, I cannot reverse this:
MOV CL,AL
RCR EAX,CL
if after it code EAX=73AC9313 and EBX=22D0B21F, then all be fine in 3 full loops ;) But that is the question: EAX=? before this two operations? It can be reversed for CL=(from 00 to FF)
indomit
25. Apr 2006
sorry... Last sentence: It can't be reversed...
costy
07. Jul 2008
@moderators
The possible keys are from 00000000 to 11111111. I made a keygen but I think that it will never find a solution becouse it takes a second to try a key. My bruteforcer is a self bruteforcer so i don't think it can be faster if i made another one.
I tested it for a while. It makes its job but it's impossible to find a serial becouse it's slow.
Can I send it as valid solution?
I think that the algo can't be reversed.
sd333221
07. Jul 2008
I will submit my solution in two years when my bruteforcer is done. Please wait xD
sd333221
07. Jul 2008
My current bruteforcer takes 300ms per try :-( Way too much
TiGa
07. Jul 2008
To be accepted, your bruteforcer has to find the serial in a reasonable amount of time.
sd333221
08. Jul 2008
I just see that "00000001" is also accepted as an input, so there are more combinations
costy
08. Jul 2008
Sorry I committed an error while writing "The possible keys are from 00000000 to 11111111". Infact their range is from 00000000 to 99999999.

@sd333221 what computer do you have? mine has got a 1000 Mhz processor. I take a second to trying a serial.
I selfbruted it.
saitob
08. Jul 2008
Off Topic:

Ohh costy, that's bad xD

Why do you not upgrade your computer? I mean, the parts cost nothing now a days. You can get a compleatly new and super fast computer for some hundred dollars.


On Topic:

Crackme looks interesting, but i'll wait for a solution.
sd333221
08. Jul 2008
Got a Dual Core 3 ghz
sd333221
08. Jul 2008
costy how do you change the numbers?
You have to change the strings.

I don't understand why it is not possible to just reverse the algorithm like that:
MOV EAX, 1; //LOOP
CONTINUE:
XCHG EBX,EDX
SUB EBX,0x11223344
SUB EBX,EDX
MOV CL,BL
RCL EBX,CL
DEC EAX;
JNE CONTINUE;

For me it works like for the first 2 steps, and then somehow the numbers are changing
costy
08. Jul 2008
@saitob
I'm poor :-(

@sd333221
about the computer
I'm poor :-(

about the selfgen...
In order to change the number...

At the program start

the string must be"00000000"
MOV DWORD PTR DS:[404000],30303030
MOV DWORD PTR DS:[404004],30303030
JMP faster.00401010 the start

each time it generates a new serial

MOV EAX,faster.00404000 mov the string in eax
INC BYTE PTR DS:[EAX] inc the first byte
CMP BYTE PTR DS:[EAX],3A byte must be in the range 30 - 39 (ascii 30 = number zero ascii 39 = number nine)
JNZ tothestartandtryit
MOV BYTE PTR DS:[EAX],30 if byte > hex39 ... byte = 30 (number zero in ascii)
INC EAX
JMP inc_the_next_byte


the selfgen tries
00000000
10000000
20000000
30000000
40000000
50000000
60000000
70000000
80000000
90000000
01000000
11000000
.....
19000000
02000000
....

Anyway I can send you the exe. If you want
HMX0101
08. Jul 2008
I'm bruting it over a Athlon 2ghz.. after 9hours it have made 1ABA5h checks... so some calcs with i've made:

9h-----1ABA5h
24h----x

x=(24*1ABA5h)/9=6AE94h

1 day = 6AE94h
2 day = D5D28h
3 day = 140BBCh
...
5888 days = 99AF4C00h /* aprox. 99999999h

1yr-----365days
x-------5888days

x=1yr*5888days/365days=16years

so, i think i'll leave this one :D good luck, guys ;)
costy
08. Jul 2008
@moderators

Could this crackme can considered impossible to solve?
And if it's impossible could be deleted??
p1nasIAT
19. Aug 2008
@costy
This is very possible to solve in a short time by brute-forcing. All you need to do is think out of the box, literally. I solved this one yesterday. I'll write a solution if I find the time, soon.
ARCHANGEL
20. Aug 2008
@p1nasIAT
It would be interesting to see the result of your bruting...
We'll wait.
andrewl.us
Moderator
20. Aug 2008
@p1nasIAT
I'm both skeptical and excited of your claim. Post or message me the DWORD :)
sd333221
28. Oct 2008
15 years and 36 days remaining until I got this one
Ox87k
28. Oct 2008
@sd333221:
AHAHAHAHAHA, LOL! :)
main
30. Oct 2008
Thanks p1nasIAT for the "out of the box" thinking, I may be on to something. Just have to learn some stuff first!

Tip:
You really have to think different.
Think of all the ways the components in your computer can do computing :)
main
30. Oct 2008
Too bad I don´t have the components needed to solve it :(
main
31. Oct 2008
If I don´t get the components I need, this will take at leat 1.5 year with my computer. Even if I use all of my computers this will take a bit over 180 days...

Of course... We could split this crackme up in parts? There are 818 (round = 800) downloads.... I have working bruteforcer, so if half of us = 400 goes from 99999999 to 00000000 and the other half does do opposite, then we could solve this in 1 min.


Like this:

Computer 1 starts from 0000 0000
Computer 2 starts from 0000 0000 + amount_of_work_done_by_one_computer * current_num_of_computers
...
Computer 401 starts from 9999 9999
Computer 402 starts from 9999 9999 - amount_of_work_done_by_one_computer * current_num_of_computers

If amount_of_work_done_by_one_computer is the amount of work a computer can do :), then we could solve this very fast.

There are 10^8 passwords to try. Each password takes (depending of implementation and computer), say 0.5 seconds to try (we can try 2 passwords / second). Then If we have 800 computers and this task is distributed equally, we can solve this with 100% accuracy in about 17 hours (maybe less because of my calculations).

Is this a possible solution (besides the solution to have special components to solve it)?
main
31. Oct 2008
"we could solve this in 1 min", ok maybe a bit exaggerated, but I was a bit excited. :P
main
01. Nov 2008
Maybe we should write some all-round brute-forcing client that could be used for different tasks?

Then we could solve quite many tasks that seem unsolvable. It´s all about computing power.

You could have a system where there are code to be executed located in some database, or dll:s that where downloaded or whatever (I´m just thinking here) and put in a queue and then equally distributed over the clients as I was talking about above.

A system where every other computer is allotted (is that the correct word?) a piece of work and if it is done processing, it request another piece and so on. It could be quite powerful.

What do you think?
andrewl.us
Moderator
01. Nov 2008
Nice idea!

http://www.distributed.net/
user2k
01. Nov 2008
heh, seti-like project started because of bruteforce-me, nice idea :)
main
02. Nov 2008
Interesting link andrewl.us!
@user2k yeah, it´s maybe a bit too much work just because of this one, but what the h-ll, once you´ve written a client (or use some already existing) it could be fun :)

And also, there are quite some users registered here on crackmes.de, if we got people engaged in this stuff it would be great!

We could solve alot of things together!
andrewl.us
Moderator
17. Dec 2008
A Christmas gift for crackmes.de; the key should be found by December 25th at the latest.

You can view the live status of the key searching at http://andrewl.us/astigmata

(assuming a valid key actually exists, that they key really does consist only of decimal digits, and that nothing environmental like loss of power or computer bursting into flames occurs)
cyclops
Moderator
21. Dec 2008
@Andrew:
Damn! You(you're PC) is working hard on it :)

Great initiative to solve a single crackme!
Lotta respect 4 you :)
andrewl.us
Moderator
24. Dec 2008
KEY: 76449502

Thanks cyclops :) Wanted to hold off reply until this thing actually worked. Was starting to have doubts :/
xylitol
27. Dec 2008
wow nice work andrewl.us !
aout
27. Dec 2008
Awesome solution, really made my day :D
simonzack
Moderator
12. Jan 2009
that was totally awesome
god what a fast pc too


downloadaton's One to rule them all

Download onetorulethemall.tar.gz, 401 b

my first crackme, have fun!

one is needed to rule them all.
tip: think about what the base pointer does.

rules: no patching

Difficulty: 3 - Getting harder
Platform: Unix/linux etc.
Language: C/C++

Published: 26. Jan, 2006
Downloads: 542

Rating

Votes: 6
Crackme is quite bad.

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Solutions

Solution by lagalopex, published 26. jan, 2008; download (4 kb), password: crackmes.de or browse.

lagalopex has rated this crackme as boring crap.

Submit your solution »

Discussion and comments

aton
Author
25. Jan 2006
by the way, the executable in the tar.gz is not suitable for developing an exploit (it is part of the crackme to find out why). i compiled it on my system without special care. use the sourcecode.
aton
Author
25. Jan 2006
no patching means: no static patching, no dynamic patching, including: "high-jacking".. ld_preload, ptrace, kmod, etc. etc.
Qnix
27. Jan 2006
aton :p .......
crp-
27. Jan 2006
hehe funny qnix... you exploited the 1st version which actually had a "bug", which made it not exploitable at all ;)
Qnix
27. Jan 2006
heheheh i didn't exploit anything ... it all wrong :p
Qnix
04. Feb 2006
the solution still here !!
moderators should remove my solution !!
zairon
Moderator
05. Feb 2006
Ok.....
taviso
03. May 2006
Is this supposed to be a joke? there is no way that code is ever going to print "cracked". That off by one error is not exploitable with any compiler I have here, maybe with some obscure flag or specific version, but if that's the case you should provide an executable.

Even if it did work, this isnt really a crackme, no original thinking is required, you can just copy and paste a stock exploit out of any of the numerous papers/books on the subject, anyone interested in the subject has surely already written their own examples which must be much more interesting than this.
taviso
03. May 2006
Some research suggests this might be exploitable with earlier gcc versions (<3.3 ?), but if this is what you tested with, you should have stated that or provided an executable, I dont have an ealier gcc here.
crp-
03. May 2006
according to a previous conversation with the crackme author, to figure out the specific compiler (version) needed to make this code exploitable is part of the challenge...
taviso
03. May 2006
Okay, fair enough i suppose :)
lagalopex
06. May 2007
no patching... but no compiler specified... what about coding our own compiler 8-)

btw... who the h*ll has a 3.x compiler installed or which distribution still offers such an old compiler...

to much hassle for a find-a-vulnerable-compiler-and-exploit-it "crackme" (it doesn't deserves to be called a crackME ;) )
lagalopex
05. Jan 2008
Question. Nowhere is mentioned, what the aim of this "crackme" is.
Just executing it like:
./otrta 'Cracked!!!
you are the lord of the base pointer
'
Would output the perhaps expected string... ;)

Is anybody thinking someone would solve this?
Could aton perhaps post a solution? Including a vulnerable executable?
(also he wasn here for a year...)


downloadbrowseAttilhaZ's Crackme01

Download crackme01.zip, 4 kb (password: crackmes.de)
Browse contents of crackme01.zip

Very simple crackme in VB.

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: (Visual) Basic

Published: 18. Apr, 2004
Downloads: 2351

Rating

Waiting for at least 3 votes
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Solutions

Solution by kewlkish, published 05. aug, 2004; download (7 kb), password: crackmes.de or browse.

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Solution by xyzero, published 20. apr, 2004; download (624 b), password: crackmes.de or browse.

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Solution by myllan, published 20. apr, 2004; download (796 b), password: crackmes.de or browse.

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Solution by ZeroZero, published 20. apr, 2004; download (1 kb), password: crackmes.de or browse.

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Solution by LuCiFeR, published 20. apr, 2004; download (1 kb), password: crackmes.de or browse.

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Discussion and comments

LeeviON
30. Nov 2008
Very easy.. very easy.


downloadbrowseAttilhaZ's Crackme02

Download crackme02.zip, 4 kb (password: crackmes.de)
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NAG Screen crackme in VB6

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: (Visual) Basic

Published: 18. Apr, 2004
Downloads: 1774

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Solutions

Solution by xyzero, published 20. apr, 2004; download (822 b), password: crackmes.de or browse.

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Solution by myllan, published 20. apr, 2004; download (5 kb), password: crackmes.de or browse.

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Solution by ZeroZero, published 20. apr, 2004; download (14 kb), password: crackmes.de or browse.

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downloadbrowseAttilhaZ's Crackme03

Download crackme03.zip, 4 kb (password: crackmes.de)
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A simple crackme in vb. Enable a button!!!

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: (Visual) Basic

Published: 18. Apr, 2004
Downloads: 1808

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Solutions

Solution by xyzero, published 20. apr, 2004; download (926 b), password: crackmes.de or browse.

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Solution by ZeroZero, published 20. apr, 2004; download (14 kb), password: crackmes.de or browse.

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Solution by LuCiFeR, published 20. apr, 2004; download (4 kb), password: crackmes.de or browse.

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downloadbrowseAttilhaZ's Crackme04

Download crackme04.zip, 3 kb (password: crackmes.de)
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Block the infinity NAG cicle!

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 22. Apr, 2004
Downloads: 1533

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Solutions

Solution by LuCiFeR, published 15. aug, 2004; download (4 kb), password: crackmes.de or browse.

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Solution by xyzero, published 24. apr, 2004; download (9 kb), password: crackmes.de or browse.

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downloadbrowseAttilhaZ's Crackme05

Download crackme05.zip, 4 kb (password: crackmes.de)
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Find the correct serial for it!

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 22. Apr, 2004
Downloads: 1910

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Solutions

Solution by LuCiFeR, published 25. apr, 2004; download (1020 b), password: crackmes.de or browse.

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Solution by hacnho, published 24. apr, 2004; download (2 kb), password: crackmes.de or browse.

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Solution by xyzero, published 24. apr, 2004; download (681 b), password: crackmes.de or browse.

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downloadbrowseAttilhaZ's Crackme06

Download crackme06.zip, 4 kb (password: crackmes.de)
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Change the caption of the DEMO VERSION label!

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 22. Apr, 2004
Downloads: 1995

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Solutions

Solution by juza, published 27. feb, 2012; download (6443 kb), password: crackmes.de or browse.

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Solution by LuCiFeR, published 25. apr, 2004; download (4 kb), password: crackmes.de or browse.

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Solution by hacnho, published 24. apr, 2004; download (5 kb), password: crackmes.de or browse.

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Solution by xyzero, published 24. apr, 2004; download (9 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseAttilhaZ's Crackme07

Download crackme07.zip, 4 kb (password: crackmes.de)
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Enable the button and find the serial.

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 22. Apr, 2004
Downloads: 1585

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Solutions

Solution by LuCiFeR, published 25. apr, 2004; download (5 kb), password: crackmes.de or browse.

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Solution by xyzero, published 24. apr, 2004; download (10 kb), password: crackmes.de or browse.

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downloadbrowseAttilhaZ's Crackme08

Download crackme08.zip, 4 kb (password: crackmes.de)
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Crackme with 3 levels. You must enable all level!

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 22. Apr, 2004
Downloads: 1528

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Solutions

Solution by LuCiFeR, published 25. apr, 2004; download (4 kb), password: crackmes.de or browse.

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Solution by xyzero, published 24. apr, 2004; download (9 kb), password: crackmes.de or browse.

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downloadbrowseAttilhaZ's Crackme09

Download crackme09.zip, 5 kb (password: crackmes.de)
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Serial number and cd-key.

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 22. Apr, 2004
Downloads: 1451

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Solutions

Solution by xyzero, published 25. apr, 2004; download (30 kb), password: crackmes.de or browse.

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downloadbrowseAttilhaZ's Crackme10

Download crackme10.zip, 3 kb (password: crackmes.de)
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Register it without patching.

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 29. Apr, 2004
Downloads: 1007

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Solutions

Solution by LuCiFeR, published 15. aug, 2004; download (1 kb), password: crackmes.de or browse.

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Solution by myllan, published 02. may, 2004; download (831 b), password: crackmes.de or browse.

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downloadbrowseAttilhaZ's Crackme11

Download crackme11.zip, 5 kb (password: crackmes.de)
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Find the correct serial.

Difficulty: 4 - Needs special knowledge
Platform: Unspecified/other
Language: Unspecified/other

Published: 24. Apr, 2004
Downloads: 1410

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downloadbrowseAttilhaZ's Crackme12

Download crackme12.zip, 4 kb (password: crackmes.de)
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Keyfile

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 29. Apr, 2004
Downloads: 988

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Solutions

Solution by LuCiFeR, published 15. aug, 2004; download (4 kb), password: crackmes.de or browse.

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Solution by myllan, published 02. may, 2004; download (1 kb), password: crackmes.de or browse.

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downloadbrowseAttilhaZ's Crackme13

Download crackme13.zip, 4 kb (password: crackmes.de)
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Another keyfile.

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 29. Apr, 2004
Downloads: 964

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Solutions

Solution by LuCiFeR, published 15. aug, 2004; download (5 kb), password: crackmes.de or browse.

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Solution by myllan, published 02. may, 2004; download (2 kb), password: crackmes.de or browse.

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downloadbrowseAttilhaZ's Crackme14

Download crackme14.zip, 4 kb (password: crackmes.de)
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Find the correct serial and make a keygen.

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 11. May, 2004
Downloads: 1294

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Solutions

Solution by myllan, published 13. may, 2004; download (1 kb), password: crackmes.de or browse.

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Solution by Plasmator, published 12. may, 2004; download (6 kb), password: crackmes.de or browse.

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downloadbrowseAttilhaZ's Crackme15

Download crackme15.zip, 4 kb (password: crackmes.de)
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Kill the NAG screen.

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 11. May, 2004
Downloads: 1058

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Solutions

Solution by kRio, published 26. jun, 2004; download (4 kb), password: crackmes.de or browse.

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downloadbrowseAttilhaZ's Crackme16

Download crackme16.zip, 4 kb (password: crackmes.de)
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Cd-Check.

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 11. May, 2004
Downloads: 1362

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Solutions

Solution by ZeroZero, published 13. may, 2004; download (25 kb), password: crackmes.de or browse.

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Solution by myllan, published 13. may, 2004; download (5 kb), password: crackmes.de or browse.

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Solution by Plasmator, published 12. may, 2004; download (9 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseAttilhaZ's Crackme17

Download crackme17.zip, 4 kb (password: crackmes.de)
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Another Cd-Check

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 11. May, 2004
Downloads: 1229

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Solutions

Solution by Plasmator, published 12. may, 2004; download (9 kb), password: crackmes.de or browse.

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Discussion and comments

Borgiman
13. Dec 2012
i tried to get this running many hours, but i didn't get it...
so i read the tutorial of Plasmator and he has written, that in the call 40214E it compares the label of our drive to a given value.
but the program won't run to it - i can't analyse why, cause i've no clue what some of the vb calls are doing, like vbaHresultCheckObj

is it maybe something with my computer configuration?


downloadbrowseAttilhaZ's Crackme18

Download crackme18.zip, 5 kb (password: crackmes.de)
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Find the correct serial.

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 12. May, 2004
Downloads: 876

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Solutions

Solution by myllan, published 16. may, 2004; download (2 kb), password: crackmes.de or browse.

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downloadbrowseAttilhaZ's Crackme19

Download crackme19.zip, 4 kb (password: crackmes.de)
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name/serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 12. May, 2004
Downloads: 853

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Solutions

Solution by xyzero, published 14. may, 2004; download (16 kb), password: crackmes.de or browse.

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downloadbrowseAttilhaZ's Crackme20

Download crackme20.zip, 5 kb (password: crackmes.de)
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name/serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 12. May, 2004
Downloads: 841

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Solutions

Solution by xyzero, published 14. may, 2004; download (18 kb), password: crackmes.de or browse.

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Discussion and comments

Borgiman
27. May 2014
After several hours i finally managed to write a keygen - i'm a newbie reverser and personally i find vb a bit more complicated to understand. But i learned much of it.


downloadbrowseAttilhaZ's Crackme21

Download crackme21.zip, 5 kb (password: crackmes.de)
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name/serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 12. May, 2004
Downloads: 848

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Solutions

Solution by xyzero, published 15. may, 2004; download (18 kb), password: crackmes.de or browse.

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Discussion and comments

Borgiman
28. May 2014
very similar to crackme20 with some string changes and serial-lookalike routine


downloadbrowseAttilhaZ's Crackme22

Download crackme22.zip, 5 kb (password: crackmes.de)
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name/serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 12. May, 2004
Downloads: 862

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Solutions

Solution by xyzero, published 14. may, 2004; download (17 kb), password: crackmes.de or browse.

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Discussion and comments

Borgiman
29. May 2014
again, very similar to the other crackmes from you, with a different sort of formatting the serial :)


downloadbrowseAttilhaZ's Crackme25

Download crackme25.zip, 25 kb (password: crackmes.de)
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Enable the button. More difficult.

Difficulty: 2 - Needs a little brain (or luck)
Platform: Unspecified/other
Language: Unspecified/other

Published: 18. May, 2004
Downloads: 988

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Solutions

Solution by kRio, published 22. jun, 2004; download (28 kb), password: crackmes.de or browse.

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downloadbrowseAttilhaZ's Crackme26

Download crackme26.zip, 41 kb (password: crackmes.de)
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Serial with antidebugger, antismartcheck.

Difficulty: 2 - Needs a little brain (or luck)
Platform: Unspecified/other
Language: Unspecified/other

Published: 20. May, 2004
Downloads: 947

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Solutions

Solution by kRio, published 22. jun, 2004; download (3 kb), password: crackmes.de or browse.

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downloadbrowseAttilhaZ's Crackme27

Download Crackme27.zip, 5 kb (password: crackmes.de)
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Serial crackme...

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: (Visual) Basic

Published: 15. Mar, 2006
Downloads: 742

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Solutions

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downloadbrowseAttilhaZ's CryptAnaliseME01

Download cryptanalizeme01.zip, 22 kb (password: crackmes.de)
Browse contents of cryptanalizeme01.zip

Decrypt the file and write a Decrypter program.

Difficulty: 3 - Getting harder
Platform: Unspecified/other
Language: Unspecified/other

Published: 12. May, 2004
Downloads: 1035

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Solutions

Solution by kRio, published 21. jun, 2004; download (20 kb), password: crackmes.de or browse.

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downloadbrowseAttilhaZ's MathsCrackme(Crackme23)

Download crackme23.zip, 5 kb (password: crackmes.de)
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Maths serial cracking. Find it.

Difficulty: 4 - Needs special knowledge
Platform: Unspecified/other
Language: Unspecified/other

Published: 12. May, 2004
Downloads: 959

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Solutions

Solution by kRio, published 22. jun, 2004; download (3 kb), password: crackmes.de or browse.

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downloadbrowseAttilhaZ's MathsCrackme(Crackme24)

Download crackme24.zip, 5 kb (password: crackmes.de)
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Another Maths Crackme. Find the correct serial.

Difficulty: 5 - Professional problem to solve
Platform: Unspecified/other
Language: Unspecified/other

Published: 12. May, 2004
Downloads: 904

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Solutions

Solution by kRio, published 22. jun, 2004; download (2 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseAuspeX's K-Protean v1.0

Download kprotean1.zip, 130 kb (password: crackmes.de)
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anti-bpm, anti-bpx, anti-traced, anti-frogsice

Difficulty: 3 - Getting harder
Platform: Unspecified/other
Language: Unspecified/other

Published: 10. Jan, 2003
Downloads: 2841

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Solutions

Solution by zairon, published 26. mar, 2003; download (6 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseavatar's catwalk

Download a.zip, 9 kb (password: crackmes.de)
Browse contents of a.zip

Run a.exe

What is the username and password to get this output:

48 130 2 94 2 1 0 2 129 129 0 217 154 214 65 205 45 143 246 148 136 235 105 124 110 196 39 43 218 7 169 30 51 100 2 118 220 103 83 112 63 31 214 23 149 221 170 108 225 65 114 65 195 90 120 55 50 222 77 60 166 179 219 213

Difficulty: 3 - Getting harder
Platform: Windows
Language: C/C++

Published: 29. Feb, 2016
Downloads: 706

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Solutions

Solution by acruel, published 12. jul, 2016; download (2 kb), password: crackmes.de or browse.

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Discussion and comments

acruel
03. Mar, 17:21
Kind of weird. Anyway, I got the output.
Extreme Coders
05. Mar, 09:38
Exploiting buffer overflow.

any 10 letter username followed by [alt + numpad 3]
any password
acruel
05. Mar, 11:49
@Extreme Coders

Not exactly.

.text:00402D19 mov ecx, [ebp+var_3C]
.text:00402D1C cmp [ebp+var_40], ecx
.text:00402D1F jz loc_402DFC
avatar
Author
05. Mar, 19:50
@Extreme Coders:

what is the [Alt + numpad 3] supposed to produce? I believe it's Ctrl-C (ASCII ETX) which will terminate the program. Your solution does not work for me.
Extreme Coders
05. Mar, 20:12
@avatar:

alt + numpad 3 = ♥
Try this:

username: 0123456789♥
pass: 123
avatar
Author
06. Mar, 01:11
@Extreme Coders: nice
masihamasiha
04. Apr, 10:08
hi @avatar.
I analyzed the code. the user must contain 11 character. the ASCII code for 11th char must be between 0 and 10 excluding 0 and 10 themselves.
----------------------------------------------------------------
here is the logic in code:
MOVZX EAX,BYTE PTR DS:[User 11th char]
TEST AL,AL
JZ 00402DDD
MOVZX EAX,BYTE PTR DS:[User 11th char]
CMP AL,0A
JA 00402DDD
MOVZX EAX,BYTE PTR DS:[User 11th char]
TEST AL,AL
JZ SHORT 00402D19

none of the jumps mus not be taken.
-------------------------------------------------------------
I tried the tab key as the 11th character whose ASCII code is 9 and it is working.
masihamasiha
04. Apr, 10:10
I forgot to mention that the password can be everything.


downloadbrowseAxel.NET's parts

Download Parts.zip, 5 kb (password: crackmes.de)
Browse contents of Parts.zip

It is composed by 2 parts so that I choosed the name Parts it has been written using C# other info can be found inside the rules.txt and inside the .exe there is a button called "rules" it will explain all!
Good Luck Have Fun

Difficulty: 1 - Very easy, for newbies
Platform: Windows
Language: .NET

Published: 20. Mar, 2011
Downloads: 608

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Solutions

Solution by JеRRy, published 14. apr, 2011; download (11 kb), password: crackmes.de or browse.

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Discussion and comments

Cooty125
20. Mar 2011
Hi
Why you have a random in static key() method?
My solution works, but must clicked Check for more times -> For Sucess!
Sorry for my english.
Cooty125
20. Mar 2011
DateTime now = DateTime.Now;
int num = Convert.ToInt32(now.Second);
int num2 = Convert.ToInt32(now.Minute);
int num3 = (num + num2) / 2;
if (num3 == 0)
{ return num3; }
Random random = new Random();
return (random.Next(10, 40) + 40);
idid231
20. Mar 2011
Hey, i'm newbie in .Net and i don't think it's for newbie like me. As Cooty125 said, you used random function to make serial if (second + minute) / 2 != 0 ; so it's mean i should keygen this kgm "on time" ???

I think the rule should change from keygen or selfkeygen to only Patch is allow!
Cooty125
20. Mar 2011
@idid231
Yes! How he can use a random and time span in serial? :D
Axel.NET
Author
20. Mar 2011
ahah guys i see you are in difficult ok I give you a tip I said you can patch 3 instructions: so answering to Cooty125:
u posted my method to get the key ok --> obviously here you have to patch something....there is a if-else construct !!!!! think about it, I said in the Rules.txt you have to patch with a particular instruction....br.....!! If I say more I solve it by myself!!!
Cooty125
20. Mar 2011
OK
I understand. I try make any else solution. Thanks and sorry for my retardation xD
idid231
21. Mar 2011
Well, seem i don't understand your mind :D Wait your solution about keygen :)
Axel.NET
Author
25. Mar 2011
hey guys Soon I will post a new KeygenMe this time I've Used a packer/obfuscator coded by Me !!
Good Luck have Fun -->Axel.Net
idid231
25. Mar 2011
packer/obfuscator? Well it's mean not for me, i don't know what is that =.= and how to unpack it :(
Waiting solution for this crackme :)
Axel.NET
Author
25. Mar 2011
hey I cannot upload a solution to my OWN crackme
anyway look back at my tip I gave to Cooty125 I'm gonna give u a new Suggestion u will need Reflector obviously and Ildasm to solve my KeygenMe if u find other problems send me a private message I will give an help with something similiar to my keygenMe so U will have a sort of tutorial "a kind of guide" I mean
idid231
26. Mar 2011
About upload solution u should pm to mod in forum
About your tut, i like it, but i think i should try again this kgm before have it, Thank you very much.
Axel.NET
Author
26. Mar 2011
ahah no the tutorial wasnt about this keygenme in particular it was in a class of keygenme similiar to mine because these types of keygenme required a bit of MSIL the tutorial would pointing out MSIl in particular cya
rip06
27. Mar 2011
Hi guys, i got a (wrong)solution for the Parts crackme, i fixed the timer problem and found a way to see the serial but i didn't use the "br" function so the solution is not the right one.. But if you would like to know how pm me (maybe it will help you to make the right solution:)
Axel.NET
Author
28. Mar 2011
that's right rip u are closely to the solution but the "br" come on man i'm sure u can defeat this using the br,
I wish you the best
rip06
28. Mar 2011
i think a found a million solutions but not with a "br" is "br.true.s" okay ?
Nelix
28. Mar 2011
Why this strange rules?

The rules with the br an the two parameters may work, but in reality this makes no sense.
Axel.NET
Author
14. Apr 2011
well the solution has been accepted anyway my idea was replace parameters inside random funciton with a range of 0 and then make an assolute jump and the application wont crash it has been tested on my pc


downloadbrowsea_k_47's PwnMe

Download pwnme.zip, 41 kb (password: crackmes.de)
Browse contents of pwnme.zip

Try generating a valid key for this crackme.
The executable file is also available for linux (is attached in the zip file also).

Have Fun!

Difficulty: 3 - Getting harder
Platform: Windows
Language: C/C++

Published: 29. Jul, 2015
Downloads: 362

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Solutions

Solution by acruel, published 07. aug, 2015; download (83 kb), password: crackmes.de or browse.

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Solution by klefz, published 07. aug, 2015; download (4 kb), password: crackmes.de or browse.

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Discussion and comments

acruel
04. Aug 2015
I've never played chess.
Delirium
05. Aug 2015
Would like to see a solution.

8 r n b q k b n r
7 p p p p p p p p
6 . . . . . . . .
5 . . . . . . . .
4 . . . . . . . .
3 . . . . . . . .
2 P P P P P P P P
1 R N B Q K B N R

a b c d e f g h
freesoul
07. Aug 2015
I didn't go for understanding the IA inside the crackme, but I got the key playing chess. Solution is sent :)
o0xmuhe
16. Aug 2015
interesting cm~
But I 've never played chess...


downloadbrowseb0ne's KeyMe#1

Download keyme_b0ne.zip, 294 kb (password: crackmes.de)
Browse contents of keyme_b0ne.zip

Hi Guys.

find the right key.
As there's not packer or any hard algo this could be something for beginners, but I think it's too hard for real n00bs.
but if you're noob:Feel free to try ;)

have fun with it, you need to guess a little bit but I think it's obvious after you gathered some information about the key.

let me know what you think

Difficulty: 2 - Needs a little brain (or luck)
Platform: DOS
Language: C/C++

Published: 09. May, 2007
Downloads: 549

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Solutions

Solution by Sunshine, published 22. may, 2007; download (14 kb), password: crackmes.de or browse.

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Solution by cmorbach, published 20. may, 2007; download (899 b), password: crackmes.de or browse.

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Discussion and comments

Ox87k
08. May 2007
i think there is a little bug in this point:
0040149B . 0110 ADD DWORD PTR DS:[EAX],EDX

The variable in memory is zero only the first time you execute the appz. Maybe have you forgotten something like var=0; ?
:)
b0ne
Author
09. May 2007
well... you're right. but nobody's perfect.
I uploaded the new version.
enjoy ;)
Zaphod
17. May 2007
b0ne: I found a key that works, but from your ReadMe I get the impression that there is a 'better' key, a key that makes sense in some way. Is that so?
fjlj
17. May 2007
lol yes the keu make a lot of sense

you need to look at the format of the key :) im gonna submit a solution now
Zaphod
18. May 2007
Okay, got it now! ( 4 = a )
yo-mismo
14. Apr 2011
Solved! Nice crackme


downloadbrowsebadRipper's NoChance KeyGenME

Download KeyGenME.zip, 222 kb (password: crackmes.de)
Browse contents of KeyGenME.zip

This Crackme is an Keygen. So you need to find out the way how the Keys are generated and write a tutorial. The complete Steps are listed in the zipfile.

Difficulty: 4 - Needs special knowledge
Platform: Windows
Language: Borland Delphi

Published: 07. May, 2008
Downloads: 256

Rating

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Solutions

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Discussion and comments

TiGa
07. May 2008
The goal is to make a keygen for the keygenme that is already a keygen.
Ox87k
08. May 2008
Eheh he "stole" the idea i had in my mind for my next keygenme.
Good job man, i'm working on it..
andrewl.us
Moderator
08. May 2008
Self-keygen allowed? :)
badRipper
Author
08. May 2008
What do you exactly mean with self-keygen?
Xspider
08. May 2008
i think self keygenning mean your keygen(ME) keygen himself, if i'm right!!
HMX0101
08. May 2008
Hey this one is easy :DD
Btw, a question... why do you use Int64 if you never have values higher than 0xFFFFFFFF??? Just that ;))

Good challenge ;P
badRipper
Author
09. May 2008
Again for all from info.txt:
1. Find my algo to generate the Keys (an info is in the application)
2. Look at the stored information in the registry and find out how to to do that entries
3. Write a tutorial how you did your job!
4. Write a new KeyGen with my algo to show that you have done your job!

HMX0101:
:D :D :D
badRipper
Author
12. May 2008
Very hard stuff heh... ???


downloadbrowseBadSector's CrackMe#1

Download crackme1.zip, 3 kb (password: crackmes.de)
Browse contents of crackme1.zip

The very first and very easy

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 19. Jan, 2003
Downloads: 3484

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Solutions

Solution by sk8r4life, published 22. jan, 2009; download (175 kb), password: crackmes.de or browse.

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Solution by _RiPTiDE_, published 16. feb, 2003; download (18 kb), password: crackmes.de or browse.

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Solution by *Sorcerer*, published 24. jan, 2003; download (7 kb), password: crackmes.de or browse.

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Solution by Bytedevil, published 19. jan, 2003; download (728 b), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseBadSector's CrackMe #2

Download crackme2.zip, 3 kb (password: crackmes.de)
Browse contents of crackme2.zip

Enable button/find serial

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 21. Jan, 2003
Downloads: 2897

Rating

Votes: 3
Crackme is boring.

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Solutions

Solution by _RiPTiDE_, published 16. feb, 2003; download (14 kb), password: crackmes.de or browse.

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Solution by bRaiN_faKKer, published 25. jan, 2003; download (5 kb), password: crackmes.de or browse.

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Solution by *Sorcerer*, published 25. jan, 2003; download (7 kb), password: crackmes.de or browse.

*Sorcerer* has rated this crackme as nothing special.

Solution by _pusher_, published 25. jan, 2003; download (7 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseBadSector's CrackMe #3

Download crackme3.zip, 2 kb (password: crackmes.de)
Browse contents of crackme3.zip

Keygen this easy CrackMe

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 31. Jan, 2003
Downloads: 2856

Rating

Votes: 3
Crackme is boring.

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Solutions

Solution by Apocalyps, published 10. feb, 2004; download (5 kb), password: crackmes.de or browse.

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Solution by _RiPTiDE_, published 16. feb, 2003; download (11 kb), password: crackmes.de or browse.

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Solution by *Sorcerer*, published 16. feb, 2003; download (11 kb), password: crackmes.de or browse.

*Sorcerer* has rated this crackme as nothing special.

Solution by bRaiN_faKKer, published 01. feb, 2003; download (6 kb), password: crackmes.de or browse.

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The submission of solutions is closed.

Discussion and comments

Borgiman
30. May 2014
nice crackme

keys work only, if you start a fresh crackme instance
if you try a key that's shorter than one you tried before, it won't be correct, because it doesn't clear the memory

e.g.
morpheuz YTBD-KLHE works
morpheuz YTBD-KLHE works
pablo NK?=-K doesn't work
itfuckingworks RJOK_RAGABYJZG; works

so, always start a fresh instance of a crackme, before you try it :)


downloadbrowseBadSector's CrackMe #4

Download crackme4.zip, 3 kb (password: crackmes.de)
Browse contents of crackme4.zip

Find serial

Difficulty: 2 - Needs a little brain (or luck)
Platform: Unspecified/other
Language: Unspecified/other

Published: 15. Feb, 2003
Downloads: 3070

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Solutions

Solution by cooller, published 18. feb, 2004; download (2 kb), password: crackmes.de or browse.

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Solution by luucorp, published 23. feb, 2003; download (3 kb), password: crackmes.de or browse.

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Solution by _RiPTiDE_, published 20. feb, 2003; download (16 kb), password: crackmes.de or browse.

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Solution by elfz, published 18. feb, 2003; download (3 kb), password: crackmes.de or browse.

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Solution by Bswap, published 18. feb, 2003; download (883 b), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseBadSector's CrackMe #5

Download crackme5_bs.zip, 4 kb (password: crackmes.de)
Browse contents of crackme5_bs.zip

name/serial

Difficulty: 2 - Needs a little brain (or luck)
Platform: Unspecified/other
Language: Unspecified/other

Published: 01. Sep, 2003
Downloads: 2017

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Solutions

Solution by bRaiN_faKKer, published 11. sep, 2003; download (7 kb), password: crackmes.de or browse.

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Discussion and comments

Borgiman
02. Jun 2014
for some reason i am unable to start the crackme. it gets loaded in memory and then exits. in ollydbg i see that it crashes at an int 68, but i don't know what this is. compatiblity mode changed nothing. any ideas?


downloadbrowseBadSector's CrackMe #6

Download crackme6_bs.zip, 8 kb (password: crackmes.de)
Browse contents of crackme6_bs.zip

lil math &amp; crypto 4 your pleasure :)

Difficulty: 3 - Getting harder
Platform: Unspecified/other
Language: Unspecified/other

Published: 03. Dec, 2003
Downloads: 1647

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Solutions

Solution by bRaiN_faKKer, published 21. jul, 2004; download (31 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseBadSector's CrackMe 7

Download crackme07.zip, 7 kb (password: crackmes.de)
Browse contents of crackme07.zip

It&#039;s easy (crypto)

Difficulty: 2 - Needs a little brain (or luck)
Platform: Unspecified/other
Language: Unspecified/other

Published: 12. Jan, 2004
Downloads: 2138

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Solutions

Solution by bLaCk-eye, published 23. jan, 2004; download (79 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseBadSector's Exercise crackme (fixed4good)

Download c9_exercise_ffg.zip, 6 kb (password: crackmes.de)
Browse contents of c9_exercise_ffg.zip

yes i know it all and i don't know what to say about all this but it works 100% now

Difficulty: 3 - Getting harder
Platform: Windows
Language: Assembler

Published: 06. Sep, 2004
Downloads: 2046

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Solutions

Solution by bLaCk-eye, published 20. sep, 2004; download (42 kb), password: crackmes.de or browse.

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Discussion and comments

StaTiX
21. Oct 2010
no this one is a challange for me.

after 5 failed attempts i just changed the info msgbox to a jump to the correct serial messge :D thouth it freezes afterwords

still searching for a way to crack it and im enjoing it.
adam master
01. Apr 2011
thanks for the crackme .. i will try to crack it..
and i think i will know jow.. since i downloaded alot of crack me in this website and i crack them successfully !!!
ideku_nih
06. Apr 2011
Look this two tiny modified
case at address A55 and A74
change it from (75) to (74)
make you feel good isnt it.


downloadbrowseBadSector's KeyMe

Download bs.keyme.zip, 3 kb (password: crackmes.de)
Browse contents of bs.keyme.zip

nothing you can&#039;t handle

Difficulty: 3 - Getting harder
Platform: Unspecified/other
Language: Unspecified/other

Published: 06. Aug, 2004
Downloads: 1479

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Solutions

Solution by bLaCk-eye, published 11. aug, 2004; download (18 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseBadSector's Pick My Lock

Download crackme10.bs.zip, 3 kb (password: crackmes.de)
Browse contents of crackme10.bs.zip

This one is different than my previous crackmes. I tried to make it interesting but not too hard. This time you will deal with some
old and easy encryption methods. Not much of a challenge for crypto lovers but still coding a keygen could be a little tricky.

Difficulty: 3 - Getting harder
Platform: Windows
Language: Assembler

Published: 27. Dec, 2004
Downloads: 1619

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Solutions

Solution by [Wizzer], published 11. jan, 2005; download (99 kb), password: crackmes.de or browse.

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Solution by jE!, published 11. jan, 2005; download (33 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseBaKaE's CrackMe#1 by BaKaE

Download CrackMe1.zip, 255 kb (password: crackmes.de)
Browse contents of CrackMe1.zip

This CrackMe is my first one
so pleaze test it, send your solution and support me a little

Difficulty: 3 - Getting harder
Platform: Windows
Language: Borland Delphi

Published: 11. Aug, 2006
Downloads: 946

Rating

Votes: 3
Crackme is boring.

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Solutions

Solution by jE!, published 02. oct, 2006; download (308 kb), password: crackmes.de or browse.

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Discussion and comments

Shism
12. Aug 2006
crashes for no reason
BaKaE
Author
12. Aug 2006
if you got an error-page

this is a part of this crack-me (read the readme.txt)
you must patch only one byte to kill this
error
BaKaE
Author
12. Aug 2006
if you need a hint for this problem
say it
Shism
12. Aug 2006
So the program is supposed to crash?
BaKaE
Author
12. Aug 2006
yes i made it crashing and your task is to stop crashing
(its not hard)

sorry for my english
symbiont
12. Aug 2006
Why did your use MEW? I thought using pe-protectors is not allowed?
BaKaE
Author
14. Aug 2006
sorry i did not knew that
BaKaE
Author
18. Aug 2006
come on!! solve it! its not to hard
LAS3R
21. Aug 2006
sure thing was 1 byte, not to easy find doh, pure luck here!
BaKaE
Author
25. Aug 2006
@ las3r did you find it??
good boy!!
BaKaE
Author
31. Aug 2006
okay the solution for the error-page

i renamed a section of this file. you need stud-pe, go to section, open the second one and patch the first byte ( 03 --> 02 )
now it worx.
now sol it!!
jE!
31. Aug 2006
you mean byte at 40012C?
this not works;
jE!
31. Aug 2006
ah, sorry, now prog unpacks in memory, nut crash happens in other place
BaKaE
Author
01. Sep 2006
@ jE! work the prog??
jE!
01. Sep 2006
on W98 happend many crash.. finished unpk on XP;
some explanations can you give?

for example, must i remove comparision with 'nope'?
BaKaE
Author
02. Sep 2006
i coded this prog in XP, if it not work on 9X, sorry.
i cant explain how fix it for 9x.
Crack it on XP

back to Error-Page:

open the prog with a hex-editor;
go to offset 12C and patch the byte to 02
now it work
jE!
02. Sep 2006
hey, already did it; look above.

so, must i remove final serial comparision with 'nope'?
it looks like your programming fault.
BaKaE
Author
04. Sep 2006
no!!
don't nope serial comparision!!
i testet the crackme and it hasn't programming fault
here is a hint: it doesn't have only s/n protection!!

(copy the part of the "programming fault" to a txt-file and sent it to bakae@web.de --> i check this)
jE!
04. Sep 2006
hey! don't warry, i will not nop your code:)

Here is problem:
@0046B588 happens final comparision os serial with string "nope";
but serial can't be string "nope".

maybe you did somthing wrong?
jE!
04. Sep 2006
ha-ha!

i viewed you CRACKme#3 understood your crackme#1..

all is ok:)
BaKaE
Author
05. Sep 2006
hä? your are a little confuse

now solv it complete and write a tut

ps: how did you like my selfmade background-images ??
jE!
06. Sep 2006
yesterday written kg-s for both #1 & #3..
later will write tut.. i'm playng with setwindowtext in delhpi
BaKaE
Author
02. Oct 2006
really nice work jE!
but
i didnt use INT2HEX (i didn't know this function)
but yes, it was a little programming fault, sorry


downloadbrowseBaKaE's CrackMe#3

Download CrackMe#3.by.BaKaE.zip, 285 kb (password: crackmes.de)
Browse contents of CrackMe#3.by.BaKaE.zip

thiz is my third CrackMe
It has a better protection, is not packed, and shouldn't crash

rulez:

1. don't use DeDe -->DONT
2. patching is allowed but not the algo or jumps

Difficulty: 3 - Getting harder
Platform: Windows 2000/XP only
Language: Borland Delphi

Published: 04. Sep, 2006
Downloads: 590

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Solutions

Solution by jE!, published 25. sep, 2006; download (65 kb), password: crackmes.de or browse.

jE! has rated this crackme as quite nice.

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Discussion and comments

BaKaE
Author
14. Sep 2006
no solution?? too hard, huh ?
BaKaE
Author
25. Sep 2006
pleaze rate it jE! and thnx for cracking my #3
jE!
25. Sep 2006
rated as GOOD
rated as GOOD
rated as GOOD

short comment not accepted???
BaKaE
Author
26. Sep 2006
@jE!
1. your patch destroy the crackme (it doesn't work)
2. your keygen doesn't work with the original exe
3. your keyfile contents not that, what i expectat
the right content is:
This is a good KeyFile. Believe me. Test it if you Want!!!!!! How Did you like my CrackMe#3?? Please Mail me if got questions: bakae@web.de


downloadbrowseBaKaE's CrackMe # 5

Download CrackMe#5.zip, 394 kb (password: crackmes.de)
Browse contents of CrackMe#5.zip

hello folks,

thiz iz my fifth CrackMe and my hardest one.
I hope you enjoy it :>

RuleZ:
1. patching NOT allowed (just patching with ressource-editors is allowed)
2. write a keygen
3. avoid to bruteforce
4. find the little EasterEgg (contains the name of another Cracker)

see ya

Difficulty: 4 - Needs special knowledge
Platform: Windows 2000/XP only
Language: Borland Delphi

Published: 04. Nov, 2006
Downloads: 588

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Solutions

There are no solutions to this crackme yet. Have you solved it? Please write a tutorial and submit it here!

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Discussion and comments

BaKaE
Author
13. Nov 2006
does someone need help??
ProTreeBrain
13. Nov 2006
I'll try solve it this week.
I don't know if I do it.

Look at my crackme. In my is allowed everything, but I like every break/code.
BaKaE
Author
26. Jan 2007
no soutions? its to hard, or ?


downloadbrowseBaKaE's CrackMe# by BaKaE

Download CrackMe#2.zip, 276 kb (password: crackmes.de)
Browse contents of CrackMe#2.zip

thiz is my second crackmes

i think it is a little bit harder than my first one

Difficulty: 3 - Getting harder
Platform: Windows 2000/XP only
Language: Borland Delphi

Published: 01. Sep, 2006
Downloads: 460

Rating

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Solutions

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Discussion and comments

BaKaE
Author
14. Sep 2006
no one ?? pleaZE someone write a tutorial ?? im waiting
l0calh0st
14. Sep 2006
give some hints on enabling hidden controls
BaKaE
Author
15. Sep 2006
use a ressource-editor
i use always pe-explorer (good prog)
you only set the enabled, and visible tag to "true"
l0calh0st
15. Sep 2006
Thanks it works...can it be done manually....Ok time to study more :)
ghostz
12. Oct 2006
Hi,
BaKaE,
I patched the crackme to display the following components:

Edit1.visible := True;
Edit2.visible := True;
Edit1.ReadOnly := False;
Edit2.ReadOnly := False;
Button1.visible := True;

I also follow the routine of Serial but I don't know if a Bad boy message or Good boy message displayed because the message close himself directly after my click with the crackme !

my serial = 20 characters.

my question is : the good boy message closes himself if I entred the good serial ? or i must patch olso the message Winodow ?

thx for your Help !
BaKaE
Author
12. Oct 2006
hy sorry i cant test it yet coz i not at home but

if your serial is correct it comes a good-boy message (title of this window) of not (bad-boy) it should close (or show nothing)
this means your serial was NOT correct.

if you want to wait until tommorow i can test it at home again and can you help again and may give some hints

thx
ghostz
12. Oct 2006
Ok ;) I'm waiting !
Thanks
BaKaE
Author
12. Oct 2006
but keep trying (don't sleep ;))

hints tommorow
BaKaE
Author
13. Oct 2006
it tested it again
it has nine times the close-order if something wrong
this means you definitely typed the wrong serial

hint: read the solutions for my #3 and #1 and than try again to crack this

happy weekend
ghostz
13. Oct 2006
Ok ! Thank you for the hint ! ;)
BaKaE
Author
26. Jan 2007
too hard to cracking ??

im ready to give some hints ;)


downloadbrowseBaKaE's CracMe#4

Download CrackMe#4.zip, 333 kb (password: crackmes.de)
Browse contents of CrackMe#4.zip

Thiz is my fourth CrackMe, it should be harder, than my other CrackMes.

Rulez: 1. Have Fun
2. Don't patch any jump
3. Avoid to use DeDe
4. Avoid to give up

Thiz is all, now go on and Crack It

Difficulty: 3 - Getting harder
Platform: Windows 2000/XP only
Language: Borland Delphi

Published: 25. Sep, 2006
Downloads: 455

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Solutions

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Discussion and comments

geeko
26. Sep 2006
Hi
too many rules.
The fifth should be: 'Avoid to use a PC'

:-)

cheers
BaKaE
Author
26. Sep 2006
two rulez are fun-rulez (avoid to give up and have fun)
but you there right: "AVOID to use a PC, or something like that"
BaKaE
Author
23. Nov 2006
hy, who changed my rulez, and why??
zairon
Moderator
23. Nov 2006
BaKae, only mods can change the crackme rules. Maybe an error of one of us, don't know. I changed the box again. Tell me if it's ok.
BaKaE
Author
23. Nov 2006
yes thanx zairon
BaKaE
Author
26. Jan 2007
come on crackers

pleaze crack thiz one, or did you need help ??


downloadbrowseBaKaE's SerialMe #1

Download serialme.by.bakae.zip, 215 kb (password: crackmes.de)
Browse contents of serialme.by.bakae.zip

Thiz is my first Serialme

dont Patch (not needed)
just keygen it

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows 2000/XP only
Language: Borland Delphi

Published: 25. Jan, 2007
Downloads: 1176

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Solutions

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Discussion and comments

BaKaE
Author
22. Jan 2007
no solutions ??
too hard ??
Zaphod
22. Jan 2007
It's too early to say that it's too hard but it is certainly not "very easy", I think :)
I'm working on it, though...
Zaphod
23. Jan 2007
I found a valid code ( serial fishing ), but it is not pretty ( some non-printable characters ) and I don't really know what's going on in this crackme. Still trying, though...
BaKaE
Author
23. Jan 2007
ive got a keygen :D, coded with the crackme-source
yes some nonprintable chars, to make it a little bit harder :)
Zaphod
23. Jan 2007
This is what I think I have found out:
Serial is 20 chars, the first 16 generates the last four and these can be fished, but I still don't know how they are generated...
BaKaE
Author
24. Jan 2007
correct!!
the first 16 generate the 4 other one to make it harder to keygen it :)

keep trying

ps: i change it to level 2
Zaphod
24. Jan 2007
My valid code from yesterday is no longer valid! I discovered that the serial depends on the date, too. This crackme gets harder and harder - arrrrgh!
BaKaE
Author
25. Jan 2007
hello

i reuploaded the crackme to fix two things

1. no longer a "xxxx is not a valid Integer-Value"
2. after writing a char, the editbox wouldn't be cleared anymore

@Zaphod

the serial doesn't have 20 chars ;)
Zaphod
25. Jan 2007
Well, no - the serial itself isn't 20 chars, but the code I enter to the clipboard is :)
Kostya
30. Jan 2007
Solved.. :) Like it, but don't think that it is level 2 :)..Maybe 1.5 ?! :)
Kostya
01. Feb 2007
..I found ...easy way..(
But doesn't work with digits :) cauze it has "Covert to hex entered digits" function ..
BaKaE
Author
01. Feb 2007
you mean it work only with digits ;)
Kostya
01. Feb 2007
...No! ) I mean my solution :) works only with letters (not with digits), but now too lazy to rewrite it ....[ easy way, but works.. ;) ]
BaKaE
Author
02. Feb 2007
but my keygen ignore all letters

hope it will be approved, them im check this ;)


downloadbrowseBaKaE's Sudoku by BaKaE

Download Sudoku.by.BaKaE.zip, 356 kb (password: crackmes.de)
Browse contents of Sudoku.by.BaKaE.zip

Thiz is a Sudoku-Game with an easy Registration-Part

it has three rulez
1. have fun while playing
2. have fun while cracking (you need ca. 10 min)
3. read at first the readme --> very important, cauz important infos about little bugs (sorry)

have fun !!!!

Difficulty: 1 - Very easy, for newbies
Platform: Windows 2000/XP only
Language: Borland Delphi

Published: 12. Sep, 2006
Downloads: 1240

Rating

Votes: 4
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Solutions

Solution by geeko, published 15. sep, 2006; download (357 kb), password: crackmes.de or browse.

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Discussion and comments

EvOlUtIoN
12. Sep 2006
nice one BaKaE, i vote it awesome!
red477
13. Sep 2006
Interesting crackme!
BaKaE
Author
13. Sep 2006
this baby has a little bug (the game is unsolvable *nice word*) if the check-button is enabled and press the button it come always the "not solved"-message open it with olly and search the pleace there a number compared with 4F (dez:79) patch this to 51 (dez:81)

--> the registration is bug-free !!
geeko
13. Sep 2006
why it reacts so slow on label.onclick?!?!
geeko
13. Sep 2006
it takes me 1 hour to fill the grid
BaKaE
Author
13. Sep 2006
ive have a 2600+ Sempron and it needs 4-5sec to fill the grid
and the label.onclick is not slow (maybe the check if all fields are filled *check it on every label.onlcick*)

the prob is your pc is to slow and you need XP, sorry
geeko
13. Sep 2006
man, is too impossible slow.
So: modify the call at 476712 to call 2 adresses lower. At that address overwrite with MOV eax,edx and it's done (i think, coz is slow to test). If this is right I'll write tuto
BaKaE
Author
13. Sep 2006
the test check if label.caption<>' '
it means label.caption is filled with a number (this little check cant be slow)

geeko what cpu did you have ??
geeko
13. Sep 2006
Intel 1500.
So my CALL change is correct?
BaKaE
Author
13. Sep 2006
maybe!! this call-change skip the test, but this test is only to avoid exception, cauz if press that button without all fields filled, it comes an exception (... is not an integer...)!!

a tut for this call-change is not needed cauz its is only for slow pc's
but you can write a tut for the registration-part (easy)
--> and sorry for this problems <--
BaKaE
Author
13. Sep 2006
ps: i have newer version of my sudoku :P
my version has a "Solve it" button, that shows me the right entrys
*nice*
geeko
14. Sep 2006
1. The call does not skip the test, as u will see in tut
2. I think I found why it is "slow". Your labels are autosize=true, so when are empty they are very thin and hard to click on it :-P (why u kill us?)
3. I changed 4f to 51 (at 4734a3), but it's the same 'not solved' message when it is correctly solved. Is it the wrong address or is it a bug in a bug?!?!
4. I've got no exceptions, never.
Now can I write tut?
geeko
14. Sep 2006
The compare at 4734a3 is not always done with (esi) 51, sometimes with 41 or 49 or...what else? although the grid is correct.
Is it a bug in your check routine!??
geeko
14. Sep 2006
please clarify that compare
geeko
14. Sep 2006
OK, man. 0x51=d81. the number of cells.
It seems that u don't take into account that there are several solutions to sudoku and u check only the one solution u know. If u confirm this as a bug I'll write tut
BaKaE
Author
14. Sep 2006
sometimes there are two or three solutions for the game,but you need the same solution that the game want!!

-->try this fill the grid correctly and change one entry (the check test the first field, if right check the next, then the next,...) every right field a number increments, after finishing the test the counter must be 81 and you must be registered, so you must find the loop that check the counter with 4F (unpatched), i try your change at 47343a3 this evening, answer tommorow

write a tut if you want, but upload it not today, upload it tommorow (maybe 15.09 or 16.09) after my answer

the thing with the autosize is a standard attitude of borland and i didn't changed that, but thnx for that info
geeko
14. Sep 2006
I didn't understand: do u want me to crack your proggy or to find out the solution u expected?
u don 't check the counter in a loop. u increment ESI for every correct number separately (it's a kinda unrolled loop), and chek it at the finish, right? and I found that compare right? What else should I do?
BaKaE
Author
14. Sep 2006
1. i don't expect a solution, i mean the right grid-solution that the game want, thus the game said "solved"
2. you were right, the check is outside of the loop [ ?? = 51 ](i don't know which register has the counted number

3. the task of this crackme is only: enable the register-menu-item and enable it, then check out how it calculate the right number; if you had done this write a solution;
if you want to write about other things in your solution (for example the patch 4F -> 51) do it

4. the last thing is (if you like): the right serial is a string of numbers and you must "convert" it to ASCII-signs, and it develops a sentence about my crackme ;-) (include it in your sol if you want)

--> little question: what exactly did you mean with crack my proggy ??
BaKaE
Author
15. Sep 2006
so i test you patch

1. the patch at 476712 is not necessarily, cauz the new msgBox only shows the "encrypted" sting, but you have the right encrypted string, you need to revrese the algo and decrypt the string to get the right serial number

2. the line is ca. cmp esi, 4f you must patch it to cmp esi, 51
than you're right (the line is easy to find)
geeko
15. Sep 2006
U gave too much hints, details. They wasn't necesary! I didn'n need nor use them.
U didn't say we can't patch. I sent the tuto. Wait for moderators now. Pretty easy. Thanks
I forgot something:
'This SudokuGame kjcks Ass'
Moderators, don't delete this, coz part of the Bakae's request
BaKaE
Author
15. Sep 2006
you mean ... kicks Ass not with j ;-)
good work, and one question why: some easy puzzles to relax ??
why don't play Sudoku ?? :P

btw, good work and test my other crackmes if you want
BaKaE
Author
15. Sep 2006
oh one thing
i forgot to hide the register-button, so it is a little easier, than planned
geeko
15. Sep 2006
is 'j' , not 'i'. U did a mistake.
Coz your sudoku doesn't recognize all solutions, sorry.And labels are too thin. And it takes too much to generate the grid. :-)
Other crackmes are too hard :)
How would I register without button?
Why don't u still work to my crackmes?. Noone solved them yet. If they are too hard I'll give you some hints.
BaKaE
Author
15. Sep 2006
i dont make mistakes (little jokes),
this sudoku was a weekend-project, so it was not enough time for another function that check if that grid right, or not and i was a little sleepy :), labels are thin, coz autosize (i believe) sorry,
the reason why it takes too much to generate the grid: your pc is too slow (on my pc it needs 5 sec. or less)
other crackmes are too hard ?? these are level 3 and you tried a level 5 (i mean magics one)
"How would I register without button?" i mean to set the button not visible and you need to make it visible again
i try your crackmes this weekend again, looking forward to solve some, bye
geeko
15. Sep 2006
5 secs. is a long time, on mine pc: the same time. I tried level 5 just to look at it from the distance and I got scared.
Yes, but U had to tell me that there is a hidden button.
Good luck. I will work on some other new crackmes
BaKaE
Author
15. Sep 2006
what is your skill-level of cracking ??
mine is 1,5 - 2
geeko
17. Sep 2006
I don't know. That was my first aproved solution. and the second tried by myself at crackmes.de.
sd333221
03. Oct 2006
Sorry but the algo, you use to create a new Sudoku game is HORRIBLE! Brute Forcing...
BaKaE
Author
04. Oct 2006
i know its horrible, but not horrible enough

bruteforce it if ya want


downloadbrowsebalaiazataeara's BKeyGenMe 2007-1

Download BKeygenMe2007.1.zip, 141 kb (password: crackmes.de)
Browse contents of BKeygenMe2007.1.zip

This KeygenMe was coded in c++ and runs in a console environnement. Good luck on this one. The algorithm is pretty simple ;) Don't patch it, keygen it ;) Feel free to comment.

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: C/C++

Published: 04. Mar, 2007
Downloads: 598

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Solutions

Solution by cooller_ho, published 11. mar, 2007; download (95 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowseBalu's GoodJob?

Download Crackme.#2.by.Balu.zip, 238 kb (password: crackmes.de)
Browse contents of Crackme.#2.by.Balu.zip

CrackMe #2 by Balu
==================

To-Do:
- get the correct registration informations or patch it
- enable the exit-button
- "registered" must shown in the label
- the red layer on the top must be green

Note:
- Crackme isnt decrypted with tools like upx...

Please notice that this is my first CrackMe, I dont really know the correct difficulty level. ;)

Difficulty: 3 - Getting harder
Platform: Windows
Language: Borland Delphi

Published: 19. Dec, 2006
Downloads: 502

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Solutions

Solution by WoCCC, published 04. jan, 2007; download (440 kb), password: crackmes.de or browse.

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Discussion and comments

Balu
Author
22. Dec 2006
Whats up guys? Too hard for you? :P
Apakekdah
23. Dec 2006
hehehe... it's too easy, i can spend my time for 2 minutes for cracking this...
LucuBRB
23. Dec 2006
Your crackme waste my time for 3 minutes 28 seconds. :P *AIO*
Balu
Author
24. Dec 2006
Okay okay guys, it seems to be that that is just a bad job. :D

I'm waiting for your solution. :-)


downloadbrowsebarut.de's barut.de Keygenme

Download Unpack.cn_Keygen_Me.zip, 28 kb (password: crackmes.de)
Browse contents of Unpack.cn_Keygen_Me.zip

barut.de keygenme

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: Unspecified/other

Published: 15. Apr, 2007
Downloads: 439

Rating

Votes: 3
Crackme is boring crap.

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Solutions

Solution by Adjiang, published 21. apr, 2007; download (48 kb), password: crackmes.de or browse.

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Discussion and comments

Adjiang
15. Apr 2007
It used Anti Debugging OEP tricks so you can't access the algorithm code.So,we have to NOP the calls function to OEP to get valid serial.


downloadbrowsebasdog22's ArtIgent

Download artigent_by_basdog22.zip, 4 kb (password: crackmes.de)
Browse contents of artigent_by_basdog22.zip

Name/Serial

Difficulty: 2 - Needs a little brain (or luck)
Platform: Unspecified/other
Language: Unspecified/other

Published: 14. Jun, 2003
Downloads: 1897

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Solutions

Solution by scarabee, published 29. jun, 2003; download (5 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowsebasdog22's HardToWork

Download hardtowork.zip, 11 kb (password: crackmes.de)
Browse contents of hardtowork.zip

All in one crackme. It will make you nuts

Difficulty: 4 - Needs special knowledge
Platform: Unspecified/other
Language: Unspecified/other

Published: 09. Jun, 2003
Downloads: 2071

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Solutions

Solution by kao, published 01. jul, 2004; download (16 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowsebasdog22's multicrackme 1.2

Download basdogmulti12.zip, 11 kb (password: crackmes.de)
Browse contents of basdogmulti12.zip

serials

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 18. Feb, 2002
Downloads: 2937

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Solutions

Solution by myllan, published 18. feb, 2002; download (941 b), password: crackmes.de or browse.

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Discussion and comments

magdeburg
09. Jun 2006
Hi, I just had a look on this crackme and tried to solve it... However, I did not have a clue where to start and since I'm rather new to assembler and crackmes I read myllan's solution. The important tip is that you have to set a breakpoint at 004029CC and follow the CALL. You already see in EDX the right serials and it's quite easy... But I still don't know how you shall find this line in the code ... Are there any signs or something like that which point to 004029CC so that you start looking there ??? Or is it the result of patience and/or luck to find this call ??

thanks for any replies that might enlighten the problem a bit
regards,
magdeburg
crackpot1978
16. Apr 2008
Can't start the program - CC3250MT.DLL not found :O(
DigitalAcid
16. Apr 2008
Then download the dll, just google it and add it to the folder where the crackme is located.


downloadbrowsebasdog22's Pako

Download pako.zip, 4 kb (password: crackmes.de)
Browse contents of pako.zip

Pako is made in Assembly using HLA

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 07. Jun, 2003
Downloads: 2647

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Solutions

Solution by elfz, published 09. jun, 2003; download (9 kb), password: crackmes.de or browse.

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downloadbrowsebasdog22's Relax

Download relax.zip, 5 kb (password: crackmes.de)
Browse contents of relax.zip

Relaxing crackme. A Nag a serial another serial..

Difficulty: 2 - Needs a little brain (or luck)
Platform: Unspecified/other
Language: Unspecified/other

Published: 09. Feb, 2003
Downloads: 2352

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Solutions

Solution by kao, published 01. jul, 2004; download (8 kb), password: crackmes.de or browse.

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downloadbrowsebasfreak's KeyME#1

Download KeyMe#1Basfreaks.zip, 8 kb (password: crackmes.de)
Browse contents of KeyMe#1Basfreaks.zip

Make a keygen not a patch.
This is my first one, leave a comment =D

Difficulty: 1 - Very easy, for newbies
Platform: Windows
Language: .NET

Published: 06. Jul, 2008
Downloads: 707

Rating

Votes: 4
Crackme is boring.

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Solutions

Solution by obnoxious, published 10. jul, 2008; download (10 kb), password: crackmes.de or browse.

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Solution by sd333221, published 10. jul, 2008; download (261 kb), password: crackmes.de or browse.

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Discussion and comments

PrincessJade
05. Jul 2008
keygen made, but i've never written a yutorial before
costy
06. Jul 2008
I solved it.
But what??

my friend PricessJade...
So you are ready for your first tutorial.
Congratulation.

I don't write a solution I'm waiting for P.Jade's one.

Anyway... About the crackme...
You use a simple text comparision. That's bad becouse i can simply copy and paste the code in my Visual Studio and them write MessageBox(ExitProg("costy")) to have the right key for my name.

But It's only the first one... so no problem.
obnoxious
06. Jul 2008
well if costy wants p.jade to write a tut so be it. p.jade looking 4ward to reading your tut :)
basfreak
Author
06. Jul 2008
Ill be waiting :)
basfreak
Author
06. Jul 2008
Haha, if you put nothing it works also, but i don't think that was your solution?
costy
06. Jul 2008
NO NO I solved correctly.
Anyway you should write
If text1.text ="" then
Msgbox "Hey! Write a name"
else
....
basfreak
Author
07. Jul 2008
Maybe P.Jade don't even want to write a tut.
obnoxious
07. Jul 2008
p.jade go ahead and write a tut....... m waiting to read ur first tut. best of luck.........
costy
07. Jul 2008
I only suggested to her to write a tutorial. If she like...
Anyway... It's clear that other people can write a solution.
sd333221
07. Jul 2008
It is really nothing special.....
I still added a solution
Bispoo
07. Jul 2008
Keygenme solved, i made keygen, easy crackme as stated.
nice job basfreak
basfreak
Author
08. Jul 2008
Thanks, gonna make another one.
simonzack
Moderator
16. Jul 2008
good job for 1st keygen basfreak :)
solved


downloadbrowsebasfreak's RegisterProduct

Download RegisterProduct#Basfreak.zip, 11 kb (password: crackmes.de)
Browse contents of RegisterProduct#Basfreak.zip

You may only patch the disabled forms.
Make a keygen.

-Greetz

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: .NET

Published: 08. Jul, 2008
Downloads: 371

Rating

Votes: 3
Crackme is quite bad.

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Solutions

Solution by obnoxious, published 13. jul, 2008; download (228 kb), password: crackmes.de or browse.

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Discussion and comments

sd333221
08. Jul 2008
This is really not a 2, you only have to take the routine and put it into your project
simonzack
Moderator
16. Jul 2008
omg, I spent more time entering the serial than solving it ~.~


downloadbrowsebasilik's crackme #1

Download bas_cm1.zip, 8 kb (password: crackmes.de)
Browse contents of bas_cm1.zip

name/company/serial, anti-si/wdasm/sc

Difficulty: 6 - Hard, for very professionals only
Platform: Unspecified/other
Language: Unspecified/other

Published: 02. Dec, 2000
Downloads: 2023

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Solutions

Solution by mccool, published 02. dec, 2000; download (199 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowsebatman10's Crackme_1

Download crackme_1.zip, 3 kb (password: crackmes.de)
Browse contents of crackme_1.zip

My first crackme!

No patch, make a keygen!

Difficulty: 1 - Very easy, for newbies
Platform: Unix/linux etc.
Language: C/C++

Published: 10. Dec, 2015
Downloads: 819

Rating

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Solutions

Solution by rsumi, published 19. jan, 2016; download (6 kb), password: crackmes.de or browse.

rsumi has rated this crackme as quite nice.

Solution by arlkers, published 19. jan, 2016; download (587 b), password: crackmes.de or browse.

arlkers has not rated this crackme yet.

Solution by Himsord, published 19. jan, 2016; download (948 b), password: crackmes.de or browse.

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Solution by acruel, published 19. jan, 2016; download (865 b), password: crackmes.de or browse.

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The submission of solutions is closed.

Discussion and comments

reflection
01. Apr, 20:15
What the hell. If I didn't miss something, I just tried "c" and "f" as totally random inputs - and it says "Good"


downloadbrowsebbidhan's b@h0n

Download 2.zip, 214 kb (password: crackmes.de)
Browse contents of 2.zip

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Unspecified/other

Published: 10. Dec, 2005
Downloads: 634

Rating

Waiting for at least 3 votes
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Solutions

Solution by Ox87k, published 13. dec, 2005; download (119 kb), password: crackmes.de or browse.

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Discussion and comments



downloadbrowsebbidhan's [Bid]haN666

Download Crack_me_2.zip, 31 kb (password: crackmes.de)
Browse contents of Crack_me_2.zip

This crack me is only for professionalz.

Difficulty: 3 - Getting harder
Platform: Unspecified/other
Language: (Visual) Basic

Published: 22. Nov, 2005
Downloads: 715

Rating

Votes: 4
Crackme is nothing special.

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Solutions

Solution by modchip, published 24. nov, 2005; download (58 kb), password: crackmes.de or browse.

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Solution by konstAnt, published 23. nov, 2005; download (31 kb), password: crackmes.de or browse.

konstAnt has rated this crackme as boring crap.

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Discussion and comments

bigboss1988
22. Nov 2005
lol, Nice CrackMe:)

Dll files have a Tricks ;)

try change name Dll file and run crackme and ill know The Baby :D
konstAnt
22. Nov 2005
Ha..ha.... That's an easy one solution'll be given fast...
bigboss1988
22. Nov 2005
heheh konstAnt :D
konstAnt
23. Nov 2005
He...he.... solution submitted.... a nice trick discussed in the tutorial...
tommy
23. Nov 2005
i thought it was very easy =)
modchip
24. Nov 2005
nice dll trick.. heheehe, submitted solution too. :)