halsten's ChainREACTION
| Download ChainREACTION.zip, 17 kb (password: crackmes.de) Browse contents of ChainREACTION.zip Write a keygen for the crackme, patching is not allowed of course. Before you write a keygen, you'll have to figure out a way to extract the crackme. Have fun.
Difficulty: 4 - Needs special knowledge | RatingWaiting for at least 3 votes View profile of halsten » |
Solutions
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Discussion and comments
| halsten Author 03. Mar 2007 | I apologize but, there's a bug in the main crackme, and I don't have much time to fix it now, sorry! P.S: The first 2 levels of the crackme are corect. |
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| r0ck 03. Mar 2007 | Interesting crackme halsten. What's the bug you're referring to? It crashes whenever I hit "Check"...? |
| halsten Author 03. Mar 2007 | r0ck: That's the bug. And unfortunately I'm very busy these days. The bug is triggered due to a conflict with a part of the code and the protection scheme. Again, I apologize for the inconvenience. |
| r0ck 03. Mar 2007 | No problem, at least I know it wasn't my unpacking that did it! =) |
| halsten Author 03. Mar 2007 | r0ck: Sure it needed unpacking? ;) |
| r0ck 03. Mar 2007 | I regretted that as soon as I clicked the submit button. ;) I should have said "extracting"... |
| halsten Author 03. Mar 2007 | r0ck: No problem. :) |
| Ox87k 03. Mar 2007 | a little hint to extract the crackme?? :) I tried to work with PE's bytes but seems to be the wrong way.. |
| r0ck 03. Mar 2007 | Ox87k: "This program cannot be run in DOS mode" |
| halsten Author 05. Mar 2007 | Ox87k: Think about a small and old cipher. :) |
| Shism 07. Aug 2007 | How do you extract this thing lol ? Do we have to decrypt the current text ? |
| saitob 07. Aug 2007 | Yes, it's encrypted and you need to decrypt it. The only problem is to figure out what kind of encryption is used. |
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