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Noz3001 I'm a spammer Reputation: 26
Joined: 29 May 2006 Posts: 6220 Location: /dev/null
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Posted: Thu Jan 01, 2009 9:43 am Post subject: Easy |
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Post password and username.
Not for people who like a challenge! |
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arigity Advanced Cheater Reputation: 0
Joined: 03 Jul 2008 Posts: 65 Location: middle of nowhere.
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Posted: Thu Jan 01, 2009 10:42 am Post subject: |
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user: arigity
pass: fun`ns~ _________________
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tombana Master Cheater Reputation: 2
Joined: 14 Jun 2007 Posts: 456 Location: The Netherlands
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Posted: Fri Jan 02, 2009 3:27 am Post subject: |
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I got it because just before the loggedin/wrongpass message I saw a string in the stack-window which turned out to be the correct pass. I don't get the encryption/decryption however. The program keeps encrypting/decrypting the functions, why? |
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Noz3001 I'm a spammer Reputation: 26
Joined: 29 May 2006 Posts: 6220 Location: /dev/null
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Posted: Fri Jan 02, 2009 5:33 am Post subject: |
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tombana wrote: | I got it because just before the loggedin/wrongpass message I saw a string in the stack-window which turned out to be the correct pass. I don't get the encryption/decryption however. The program keeps encrypting/decrypting the functions, why? |
Just something I threw in. |
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DoomsDay Grandmaster Cheater Reputation: 0
Joined: 06 Jan 2007 Posts: 768 Location: %HomePath%
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Posted: Fri Jan 02, 2009 6:06 am Post subject: |
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Anti debug.
The algorithm itself is quite simple:
004013B0 -> strlen(name)
004013C5 -> password <- name ^ len |
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Noz3001 I'm a spammer Reputation: 26
Joined: 29 May 2006 Posts: 6220 Location: /dev/null
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Posted: Fri Jan 02, 2009 6:18 am Post subject: |
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Ya, didn't spend a lot of time on that part ^_^. Took a while to make storage for the strings. The crackme part kinda ruined it because i had to compare them.
Well, at least it's suitable for someone who's just started learning ( I hope ). |
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S3NSA :3 Reputation: 1
Joined: 06 Dec 2006 Posts: 1908 Location: England.
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