WinFan's NAVM - Not another Virtual Machine
| Download NAVM.zip, 16 kb (password: crackmes.de) Browse contents of NAVM.zip Platform: Microsoft Windows (tested on Windows 7 - 32 bit)
Difficulty: 3 - Getting harder | Send a message to WinFan » View profile of WinFan » |
Solutions
Solution by Voik, published 21. sep, 2010; download (14 kb), password: crackmes.de or browse.
Voik has rated this crackme as awesome.
Discussion and comments
| Voik 17. Sep 2010 | Very nice crackme! I will try it! :) |
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| Voik 18. Sep 2010 | Patched .navm file: 00 D1 40 00 Tutorial soon. :) |
| WinFan Author 18. Sep 2010 | Well done, now write a KeyGen (shouldn't be much of a problem), explain what the VM is doing and the solution is perfect! :) |
| Voik 19. Sep 2010 | Tutorial submited with keygen and patched .navm. :) |
| WinFan Author 19. Sep 2010 | Cool, I am already working on my next NAVM crackme, which will be a little more complex. I have written a simple assembler language so writing .navm files should be a lot faster for me. :) I am also thinking about expanding the operands size to 32 or even 64-bit. |
| vptrlx 19. Sep 2010 | The mankind doesn't need another assembler… Don't you think about writing something more useful like a disassembler or even a debugger? Think "about expanding the operands size to ... even 64-bit" in that way ;) |
| WinFan Author 19. Sep 2010 | I was talking about a tool that makes me able to create code for my own VM more quickly. This has nothing to do with assembler code for intel-compatible CPU's. |
| vptrlx 19. Sep 2010 | i understand:) And your development is (if you are going to do everything seriously) is as hard as the things i describe, but it's Sisyphean toil. Yeah, let's abort this discussion :) |
| WinFan Author 19. Sep 2010 | I am doing all of this just for fun and to educate myself :-) |
| WinFan Author 21. Sep 2010 | Nice solution Voik, good job! |
| BoRoV 21. Sep 2010 | @WinFan: wait your new and powerful navm, 8-bit vm not interesting |
| WinFan Author 21. Sep 2010 | I have already rewritten the VM to support 32-bit operands, so most likely the next crackme will have a proper serial-Algorithm. (This one was .. lame ;-) ) |
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