downloadbrowseThunder_cls's Sticky Crackme

Download sticky_crackme.zip, 82 kb (password: crackmes.de)
Browse contents of sticky_crackme.zip

This is just a crackme I made a couple years before, it's called "Sticky Crackme", and though it has some time now, it's still a funny challenge. The idea behind ??this crackme is to have a fun time and to also check on an unconventional method of "registering" an app, sort of speak, you'll see what I mean. I think it can be interesting to deal around with this application and decipher its functioning. This crackme is not designed for noobs, it's intended for advanced newbies at least, if you have some average knowledge you shouldn't have any issue, it's a relative easy challenge though.
"...watch the code very close and you'll see some growing light..."

Rules:
1- Not worth patching the executable as a final solution.
2- Make a "keygen" in the language you want. The keygen should be considered as a GOLD solution if the same methods used by the crackme are used when registering it. That is, the keygen must register the application without the user having to do anything but to press a simple button ;)
3- Make a tutorial on how you have overcome the crackme and the construction of the keygen.

That's pretty much it, hope you like it...
happy cracking to all!!
ThunderCls

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

Published: 25. Jan, 2016
Downloads: 584

Rating

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Solutions

Solution by aldeid, published 09. feb, 2016; download (291 kb), password: crackmes.de or browse.

aldeid has rated this crackme as quite nice.

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Discussion and comments

acruel
01. Feb, 23:00
Funny. Will submit a solution later.
r0bert
06. Feb, 08:40
this crackme uses the windowsXP offset (relative to ProcessHeap) for ForceFlags, 0x10:

MOV EAX,DWORD PTR FS:[30]
MOV EAX,DWORD PTR DS:[EAX+18]
MOV EAX,DWORD PTR DS:[EAX+10]

From windows 7 it changed to 0x44:

MOV EAX,DWORD PTR FS:[30]
MOV EAX,DWORD PTR DS:[EAX+18]
MOV EAX,DWORD PTR DS:[EAX+44]

this crackme only works reliably on XP
Thunder_cls
Author
07. Feb, 05:27
@r0bert
Indeed, you are right on what you are saying, though It has nothing to do with the correct functioning of the crackme, despite this it is still fully functional and solvable ;)
Thunder_cls
Author
07. Feb, 05:30
c'mon guys its not that hard xp
acruel
08. Feb, 09:01
solution i posted seems not to satisfy the rule #2.
aldeid
08. Feb, 13:45
Solution posted! Very nice crackme.
Thunder_cls
Author
08. Feb, 21:28
@acruel
I didn't receive any solution, or at least I haven't been notified about it.
Thunder_cls
Author
08. Feb, 21:29
@aldeid
thanks, glad you like it ;)
acruel
09. Feb, 12:03
@Thunder_cls
Thanks. I guess the solution is under review by mods.
Thunder_cls
Author
10. Feb, 23:42
@aldeid
Great tut man!, I liked it, congratz and thanks for taking time xD
Banthar
17. May, 13:43
Very nice crackme. Quite funny to overcome those Protections! 9/10
IWannaBeTheBest
30. Aug, 23:16
I haven't finished yet but I like it alot.

Thanks for sharing :)

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