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Download AthCon_2013_RE_Challenge.zip, 59 kb (password: crackmes.de)
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Hi guys,

This is the RE Challenge created for AthCon 2013 by Kyriakos Economou and Nikolaos Tsapakis.
The contest is not active anymore, but I am sure you are...

Enjoy,
kyREcon

Difficulty: 4 - Needs special knowledge
Platform: Windows
Language: Assembler

Published: 11. May, 2013
Downloads: 218

Rating

Votes: 6
Crackme is quite nice.

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Solutions

Solution by s3Rious, published 27. jan, 2015; download (48 kb), password: crackmes.de or browse.

s3Rious has rated this crackme as awesome.

Solution by zairon, published 11. jun, 2013; download (16 kb), password: crackmes.de or browse.

zairon has rated this crackme as quite nice.

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Discussion and comments

jmper
14. May 2013
I think you you lie a little about difficulty ;)

I read the solution from OKOB on exelab.ru forum and crackme has not easy VM. I think the real difficulty is 6/10
zairon
Moderator
14. May 2013
It's not so hard as it seems, I used a simple Idc script to have a readable and debug-able code :)
Anyway, maybe 5 is the right level value, let's see what's the opinion of the others.
kyREcon
Author
16. May 2013
Well, sometimes it is not a trivial task to decide the level of difficulty, mainly because it's quite subjective.
If you think it's level 5, 6 ..etc we can always change it, even though, to be honest, I wouldn't stick with that.
s3Rious
14. Jan 2015
I tried this crackme during the contest, but I failed to solve it. It was a personal challenge for me since today. :)

I've solve level 4 and level 5 crackmes, but definitely this was much harder. I estimate its level to 6.

A valid password is: EF BE AD DE EF BE AD DE EF BE AD DE B2 CB A4 AD

I'll submit a solution soon. :)

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