downloadbrowse^DAEMON^'s Crackme 4

Download, 9 kb (password:
Browse contents of


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

Published: 18. Sep, 2002
Downloads: 1856


No votes yet.
Rate this crackme:

Send a message to ^DAEMON^ »

View profile of ^DAEMON^ »


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

Submit your solution »

Discussion and comments

08. May 2006
Uhh It took me like 13 seconds to crack this. Put it in the easy catagory
08. May 2006
Well, you can patch the crackme in few seconds, 13 are too much. If you have a valid serial... write a tutorial :)
07. Nov 2009
Very Very Easy to crack this.
Set Je to JNZ.
07. Nov 2009
Uses an Rivest Cipher. I'm not sure what kind yet. However, the output is hardcoded, meaning there is only one password. I'm trying to find the key right now but once that is found, it shouldn't be too hard to find the real serial.
07. Nov 2009
all serials with 8 chars in Base10Table has been bruteforced
detection: none :)
08. Nov 2009
gpt^J, I don't understand what you're saying. I detected a RC5/RC6 signature in the file. Used multiple detectors to confirm. Does he use a Base10 encryption?
08. Nov 2009
sorry, I had to say Base10Char,not Base10Table.
Base10Char - it's only nombers 0,1,...,8,9 - I used it for bruteforcing,but I don't succesful
About RC5/RC6 - first part RC5 - RC5ENCAB and RC5Encrypt is modified
second part is RC6 - RC6ENCRND is modified too
08. Nov 2009
ok, first algo has solved
invoke RC6Init,addr Serial,dword ptr szSerial
rounds = 4
08. Nov 2009
Yeah. The first part I have the source for. I'm currently working on the second part as well. I like your Base10Char idea! =D Is the cipher 64 bits? The preceeding 8 bytes I think are associated with the key for the cipher.

You may leave your comment, thoughts and discuss this crackme with other reversers here.
Acting childish will not be tolerated.
HTML and such will be left as-is, so don't try.