downloadsnuker's crack1

Download crack1.tar.gz, 5 kb

mprotect, xor, jmp

Difficulty: 3 - Getting harder
Platform: Unix/linux etc.
Language: C/C++

Published: 28. Apr, 2013
Downloads: 218

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Solutions

Solution by acruel, published 23. sep, 2015; download (540 b), password: crackmes.de or browse.

acruel has not rated this crackme yet.

Solution by timcess, published 15. aug, 2013; download (4 kb), password: crackmes.de or browse.

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Solution by Qnix, published 15. aug, 2013; download (2 kb), password: crackmes.de or browse.

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Discussion and comments

acruel
31. Aug 2015		Is the following instruction intended for alignment?

0x080486ca <+238>: shr eax,0xc

I thought the instruction should be modified as follows:

and eax,0xFFFFF000

or equivalently

shr eax,0xc
shl eax,0xc

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