pnluck's Crackme x64
| Download Crackme94.zip, 25 kb (password: crackmes.de) Browse contents of Crackme94.zip This is a simple crackme for win64. You must find the correct serial, patch is not allowed
Difficulty: 2 - Needs a little brain (or luck) | RatingWaiting for at least 3 votes View profile of pnluck » |
Solutions
Solution by Ox87k, published 11. jul, 2008; download (3587 kb), password: crackmes.de or browse.
Ox87k has not rated this crackme yet.
Solution by TiGa, published 11. jul, 2008; download (2277 kb), password: crackmes.de or browse.
TiGa has not rated this crackme yet.
Discussion and comments
| TiGa 05. Jul 2008 | Solved! Really nice and simple crackme! It's a good one to try x64 for the first time. |
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| Ox87k 05. Jul 2008 | Hum.. TiGa, can you make a video tutorial? I would learn something more about x64 |
| TiGa 05. Jul 2008 | Sure, I'm waiting 2-3 days to give a chance to somebody else . |
| Ox87k 06. Jul 2008 | TiGa.. but have you some problem with IDA or nothing? I've problems with breakpoints.. :-| |
| TiGa 06. Jul 2008 | I used IDA 5.3 BETA instead of 5.2. ;) |
| pnluck Author 06. Jul 2008 | I reversed it with WinDBG & IDA 4.9 :p (watching the source code hihihi) |
| Ox87k 07. Jul 2008 | Solved! Tiga, i'll do a video-tutorial if you didn't make it already. Is it ok for you? |
| TiGa 09. Jul 2008 | Send yours in whenever it's ready. |
| MACH4 11. Jul 2008 | Tnks, two excellent tutes guy's! Couple of questions; Why didn't the program detect winDebug? @Tiga, The power of IDA never fails to amaze me when used in the right hands, yet using it seems more criptic than the program being debugged! How do you rate winDebug with IDA? ie advantages disadvantages? sorry for being slightly off topic! |
| pnluck Author 11. Jul 2008 | @MACH4: "Why didn't the program detect winDebug?" I didn't write code to detect ida or another one debugger, ida craches when try to debug this crackme, just because can't read, maybe, in the right way, exe files generated by visual studio 8. |
| TiGa 11. Jul 2008 | The anti-debug trick prevents WinDbg from starting the file directly too, that's why 0x87k attached to the process after the anti-debug was executed. If the trick had also been present in the code of the button too, attaching would have been useless. In mine, I took the long way around to explore and neutralize the anti-debug trick. I could have attached IDA in the same way as WinDbg to bypass it instead. IDA 5.2 crashing is not really caused by any anti-debug trick, it's simply an unrelated bug in IDA. The bug was fixed in 5.3. I prefer IDA because of the graphical view. WinDbg is a ring 0 debugger but I don't really need that feature and the interface is command-line only. I don't use OllyDbg either, always IDA. |
| MACH4 12. Jul 2008 | Thanks for the explanations , Much appreciated! |
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