downloadbrowse-Oky.'s WxProtect v1.0 Crackme

Download, 44 kb (password:
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The official crackme for the WxProtect protector which was written for a university project.

Try and beat the protection then just patch out the registration dialog or force invalid serials to be accepted.

This is my first ever attempt at a protector so don't expect to much :)

Your suggestions/feedback would be greatly appreciated.

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: C/C++

Published: 31. Mar, 2006
Downloads: 832


Votes: 4
Crackme is boring.

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Solution by ala_borbe, published 18. jan, 2007; download (64 kb), password: or browse.

ala_borbe has rated this crackme as quite nice.

Solution by ReHPer, published 18. nov, 2006; download (123 kb), password: or browse.

ReHPer has not rated this crackme yet.

Solution by znycuk, published 10. apr, 2006; download (92 kb), password: or browse.

znycuk has rated this crackme as quite nice.

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Discussion and comments

31. Mar 2006
Thanks...too easy ;)
31. Mar 2006
mmm.. it seems simple...
31. Mar 2006
Do we need to make a keygen...???
31. Mar 2006
Very nice crackme, its uses some fpu functions...
Great!, thanks!
31. Mar 2006
Thanks, I’m glad you enjoyed it.

The main aim of the crackme was to defeat the protector so a keygen is not necessary although it would be more than welcome.

Very impressed with the speed you reverse it!, I'll try and make it harder next time ;)
31. Mar 2006
but what keygen,i could find only one key :D
01. Apr 2006
Just had another look at the key verification routine and your right, it does seam to produce the same key for similar input and even if you enter completely different input, it still doesn't change a lot :(

I remember writing it off the top of my head very late a night and with no intention of it being analyzed, sorry.

The application it’s-self was written quite quickly and simply, just so I could (legally) demonstrate how software was reversed.

The whole idea was you had this extremely vulnerable app that the protection could make secure :)
01. Apr 2006
Yes you're right, it's easy but... (imho) it's a nice introduction to the unpacking world. I would expect some detailed tutorials and not the usual annoying 'load the file in olly, dump the file, rebuild....'. Try to answer to some questions:
- What about the IAT? Write something about import table desctruction, iat rebuilding
- Is there an hash checking?
- Is there an encryption?
- Are there some anti-disassembly and anti-debugging tricks?

Good luck.
19. Nov 2006
for 0/10
20. Nov 2006
Oky and red477, I don't understand what you mean when you say there is only one key. Different names DO generate different keys...

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