BuKoBG's KeyFileMe #1
| Download keyfileme.zip, 704 b (password: crackmes.de) Browse contents of keyfileme.zip No patching.Craft a *special* keyfile that shows good boy message.
Difficulty: 3 - Getting harder | Send a message to BuKoBG » View profile of BuKoBG » |
Solutions
Solution by draww, published 11. feb, 2011; download (2 kb), password: crackmes.de or browse.
draww has rated this crackme as boring.
Solution by sphaaz, published 11. feb, 2011; download (3 kb), password: crackmes.de or browse.
sphaaz has not rated this crackme yet.
Solution by -Alex-, published 11. feb, 2011; download (2 kb), password: crackmes.de or browse.
-Alex- has rated this crackme as nothing special.
Solution by promix17, published 11. feb, 2011; download (2 kb), password: crackmes.de or browse.
promix17 has not rated this crackme yet.
Solution by Klaria, published 11. feb, 2011; download (2 kb), password: crackmes.de or browse.
Klaria has not rated this crackme yet.
Discussion and comments
| Andersen 08. Feb 2011 | Did this crackme has solution? The code is simple, but GetTickCount returns differ values everytime, and this value compared with first DWORD bytes of keyfile. Oo Anywhere, my Ollydebugger crashed in 40106D. So, I thougth-no way |
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| Andersen 08. Feb 2011 | Hmm... Seems, retn instruction do not knows address where return. Is it trick? Where is my IDA Pro+SoftIce? (= |
| Andersen 08. Feb 2011 | so, may be something I am do not know? Please, write the solution, anyone |
| Zephy 08. Feb 2011 | nice pure code, ...but solution is not so nice :-))) |
| promix17 08. Feb 2011 | Hm... I think, that solution is the buffer overflov... Wait a minute... |
| maverick` 08. Feb 2011 | you are right... |
| promix17 08. Feb 2011 | I solved it wait a tutorial! |
| Andersen 09. Feb 2011 | Roger, here need overflow, but how? I thougth, first dword of keyfile is not so important, it's not matched with GetTickCount()'s return. But another part of the keyfile filled the stack. |
| Xspider 09. Feb 2011 | i'm wondering where is that special key :p |
| Xspider 09. Feb 2011 | ok i give up it's a BoF!!!!!!!!! |
| sphaaz 09. Feb 2011 | actually it simple i wrote a tut w8ing for approval :) just push the values for messgebox onto the stack and jump to call MessageBoxA :) |
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