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First Crackme.

 
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Cx
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PostPosted: Sun Jul 29, 2007 12:25 am    Post subject: First Crackme. Reply with quote

'bout time.
I'm a beginner to crackme's, so I probably did something retarded along the way. I just tried to use common sense. Please tell me what gave it away/what I could've done better.

It's simple- find a password. For bonus leet points, find all possible answers (technically there's more than one).
I didn't put any type of notification in. Open the program and type your password right away, press enter.
Wait a bit for the program to run itself. If it's wrong, it'll either crash or close depending on wtf you inputted.
If it's right, you'll see a string of numbers then a prompt, then it'll close.

Made in C(++lol).

Please help me improve. The crackme is attached (refresh if you can't see it). It's was compiled in Debug Mode 'cuz Release gave me weird lib errors ("unresolved external symbol ___security_cookie").

Also, added another one that will be easier to trace (firstcrackmeeasy.rar). The hint I'm giving is that as soon as it opens, you'll hear something (if your volume is up).
Trace it.
The original one is harder (firstcrackme.rar), I didn't use anything easy to trace.

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Last edited by Cx on Sun Jul 29, 2007 10:44 am; edited 2 times in total
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oib111
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PostPosted: Sun Jul 29, 2007 1:09 am    Post subject: Reply with quote

Man, there was no strings. So I had no idea where to look. Which would mean I would basically have to read everything until I found the part about your password, and then start cracking it, but that would take to long and its 12:41am...so no....
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8D wrote:

cigs dont make people high, which weed does, which causes them to do bad stuff. like killing
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haha01haha01
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PostPosted: Sun Jul 29, 2007 8:20 am    Post subject: Reply with quote

wtf impossible.
no text strings...
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Symbol
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PostPosted: Sun Jul 29, 2007 8:49 am    Post subject: Reply with quote

lol 1 post 1 warning =)
i dont know what do u think, but i dont know if its a crackme... =\
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oib111
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PostPosted: Sun Jul 29, 2007 8:53 am    Post subject: Reply with quote

Of course its a real crackme. Me and haha01haha01 both downloaded and were fine. Its codex, and codex doesn't make virus stuff, at least to my knowledge, o.O
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8D wrote:

cigs dont make people high, which weed does, which causes them to do bad stuff. like killing
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appalsap
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PostPosted: Sun Jul 29, 2007 9:20 am    Post subject: Re: First Crackme. Reply with quote

Cx wrote:
It's was compiled in Debug Mode 'cuz Release gave me weird lib errors ("unresolved external symbol ___security_cookie").


that means you need to link to libcmt.lib (for unhandled exception handling)

or you could find the code that msvc thinks is unsafe by commenting Smile
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Cx
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PostPosted: Sun Jul 29, 2007 10:13 am    Post subject: Reply with quote

1) Eh, anyways, if you guys want I can put in something you can trace from.
But you could just use damn logic when tracing without anything significant.
I was wondering myself if this would be considered "legal".

2) stfu, it's not malware (I know, the compiling issues might make it look that way). Also, this is my 3rd account, so be quiet. I'm Codex and xCodex. One I accidentally put a bad email when changing the account info and the other is fine, I don't know why I'm using this one.

3) appal, I'm too lazy. besides the functions don't have revealing names or anything. plus, I have no idea what I'd need to comment out, it's all legit.

Edit: Added something you can trace from, it's the "firstcrackmeeasy".
Check the first post.

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ForumUser
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PostPosted: Sun Jul 29, 2007 6:47 pm    Post subject: Reply with quote

42A271:
db E9

Ownage. void owns joo

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Cx
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PostPosted: Sun Jul 29, 2007 6:58 pm    Post subject: Reply with quote

Wrong (try it).
And anyways I said find the PW.

Anyways appalsap it didn't work, and I commented out lines and it still didn't work.

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appalsap
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PostPosted: Sun Jul 29, 2007 7:25 pm    Post subject: Reply with quote

what are your compiler switches?
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Cx
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PostPosted: Tue Jul 31, 2007 10:09 am    Post subject: Reply with quote

Still not cracked?
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Toxicelfman
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PostPosted: Wed Aug 01, 2007 1:23 pm    Post subject: Reply with quote

Lol funny siggy forum user Very Happy
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