downloadbrowseLFalch's LFalch's 1st crackme

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This is the first crackme I've made
It's not that hard to complete but it can be fun to do

Make a keygen
Don't alter any of the classes in the jar
Feel free to decompile the jar
Bonus Info:
The jar is obfuscated
The serial only consists of letters and numbers

Difficulty: 1 - Very easy, for newbies
Platform: Unspecified/other
Language: Java

Published: 12. Apr, 2013
Downloads: 432


Waiting for at least 3 votes
(we have only 2).

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Solution by warsaw, published 18. jun, 2013; download (3 kb), password: or browse.

warsaw has rated this crackme as quite nice.

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Discussion and comments

14. Apr 2013
Yay it's been approved
15. Apr 2013
Nice Work. Yes easy, but not so obvious. A lot of fun and gimme something so learn. I didn't know what an obfuscator is.
Thanks :)
21. Apr 2013
Glad you liked it!
11. Nov 2013
I couldn't use ollydbg, what do you use?
28. Mar 2014

you can use Jar2Exe and then use ollydbg or you use jd-gui and look there at the structure. i found the routine, but i have no idea how to make a keygen.
28. Mar 2014
The goal is create a keygen. For that you'll need to use jd-gui or some other decompiler to see how it checks the codes.
10. Jan, 15:43
Nice crackme! I solved it with keygen and with patch

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