downloadbrowseyo-mismo's CrackMe V1

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Simple spanish crackme written in NASM.

Language: NASM
Difficulty: 1 / 10 - Just started (Newbies only)
Packed: Yes, UPX.
Password Source: Serial valid for user Alguien.
Objective: Keygen and tutorial.

-No SelfKeygen
-No patch
-Valid Keygen
-Enjoy it

Have a nice day

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

Published: 12. Apr, 2011
Downloads: 1374


Votes: 3
Crackme is nothing special.

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Solution by nu.orpse, published 28. apr, 2011; download (9 kb), password: or browse.

nu.orpse has rated this crackme as quite nice.

Solution by elicn, published 28. apr, 2011; download (2 kb), password: or browse.

elicn has not rated this crackme yet.

Solution by gehstock, published 08. feb, 2012; download (846 kb), password: or browse.

gehstock has not rated this crackme yet.

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Discussion and comments

12. Apr 2011
"Packed: Yes, UPX."

"Can I pack/protect my Crackme with a commercial protector even if it is free?
No. The only packers/protectors allowed are those that you wrote yourself."

Is this rule even enforced anymore? Kinda answered my own question there but w/e.
12. Apr 2011
Disregard my previous comment, I see the exe in the zip isn't packed.
14. Apr 2011
something either it's a bug or something else i don't wanna say ^^ at 00401317 you did a CMP ECX,4 that means that the length of calculated serial should be 4 and then after the end of that loop, you did a lstrlen so that we already know that the length of calculated serial is 4!! you've wasted three lines x)
14. Apr 2011
okey your crackme is buggy!! i entered serial for Alguien which is Alguien3891878852 but wasn't accepted in the crackme, but in the source.rar it was accepted..
14. Apr 2011
Is not a bug, only 4 first bytes are calculated... I don't know what is the problem with the user Alguien, but there is a bug...

Well done, gehstock!
15. Apr 2011
>> I don't know what is the problem with the user Alguien

buffer size: 16 versus 7 ("Alguien") + 10 (the decimal string representation of the calculated checksum 0xE7F95BC4 ("3891878852") + 1 ("\0")
15. Apr 2011
Nice tip, sng, i only was tested it with 5 char's string for username...

Wait second version
17. Apr 2011
Self Keygen means patching the app so it tells you the correct serial instead of validating the one you enter.
18. Apr 2011
@vlad648 yes, that's a bug, see the sng-'s comment.
19. Apr 2011
guys I apply two jumps to another address and I turned, but not to get valid serial crak and user

chicos yo aplique dos saltos a otra direccion y me resulto, pero no se crak para sacar serial valido y usuario
19. Apr 2011
correction : name must be 4 or 5 chars.
19. Apr 2011
If the username have more than 5 char's, the crackme can turn crazy... A little bug

Si el usuario contiene más de 5 caracteres, el crackme se volverá loco... Un pequeño bug
21. Apr 2011
Challenge for Numernia: Translate his nick.
02. May 2011
Solved! Wait next version...
07. Mar 2012
Username my overwrite serial.
I think you need some bounds check
07. Mar 2012
Username may overwrite serial :)

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