Kostya's KeygenM3Crypt (caffeine crackme)
| Download Cr4ckM3#2.zip, 24 kb (password: crackmes.de) Browse contents of Cr4ckM3#2.zip Plz view README file (for rulez and etc.)
Difficulty: 4 - Needs special knowledge | RatingVotes: 8 View profile of Kostya » |
Solutions
Solution by ratsoul, published 09. nov, 2007; download (358 kb), password: crackmes.de or browse.
ratsoul has not rated this crackme yet.
Discussion and comments
| Kostya Author 02. Sep 2006 | Any problems!? :) |
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| AlexeyG 02. Sep 2006 | The crackme looks very interesting. I never did a level 3 before, only 1-2. But I think it ain't level 3 for sure.. the algo is huge |
| BaKaE 02. Sep 2006 | i dont understand the algo 1. it convert the name to 2 another versions 2. it copy the first 8 chars of a hardcoded string 5 times why?? pleaze explain!! can someone solv this pleaze, i would like to read a tut!! |
| AlexeyG 02. Sep 2006 | Then it makes 2 DWORDS from these 2 new usernames. And then it plays with password\serial I belive. I didn't look further - had no time. Oh and string is not copied 5 times, but 5.25 times (2 more chars are copied). That's all I got, perhaps will look more when I get time. But yes, if someone solved it already - please write a tut! |
| AlexeyG 02. Sep 2006 | ohh and another part I liked is rdtsc!! from a part, that one of these DWORDS are made with addition of part of _rdtsc and then substraction of this part from another _rdtsc a new DWORD is made :) may be it's all junk code, I dunno - haven't looked, but sure is interesting! |
| badmojo 09. Sep 2006 | There seems to be a little bug with this crackme which makes it easier to crack than it actually is. I've messaged Kostya about it. |
| zairon Moderator 09. Sep 2006 | Crackme updated. |
| Kostya Author 09. Sep 2006 | Yeah! It became a bit harder :) badmojo can u solve it!? ;) |
| Crosys 09. Sep 2006 | Interesting stuff, maybe solving it later |
| Gauri 26. Sep 2006 | Hey What's There. Can't be solved... |
| Kostya Author 27. Sep 2006 | too hard :) to solve it :) |
| sd333221 28. Sep 2006 | If you give an example number i will try to make a bruter |
| Kostya Author 28. Sep 2006 | Don't think that u can :) Key contains: special symbols (.,&.. etc), alphabet (uppercase, and lowercase), and the length u know! u can easy find it in exe file... so it's hard :) to bruteforce it ;) I don't think that it is possible.. :) |
| sd333221 28. Sep 2006 | Yes, I see, i thought it was a smart one, because you mentioned brute forcing ;-) |
| Kostya Author 28. Sep 2006 | hm.. i said brutforcing.. I meant to brute some parts of it, if u cant reverse it. |
| Kostya Author 01. Oct 2006 | Plz, vote, so i will see what do u think about it... It's boring!? |
| ratsoul 08. Nov 2007 | Another nice crackme... solved :) |
| Kostya Author 11. Nov 2007 | WoW... ! :) U did it!!! |
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