SHADOW_UA Posted December 24, 2015 Share Posted December 24, 2015 Not a difficult one keygenme/crackme written in C#. Gold - write a keygen Silver - find a valid Name-Key Bronze - patch assembly and get Good boy message KeyGenME_SHADOW.rar 5 Link to comment Share on other sites More sharing options...
kao Posted December 24, 2015 Share Posted December 24, 2015 (edited) Very nice! Attached is KG and uncommented source. But you must understand how this keygenme works - otherwise the source won't make any sense to you. KG_KeyGenME_SHADOW.zip EDIT: Merry Christmas everyone! Enjoy this time with your family... Edited December 24, 2015 by kao 5 Link to comment Share on other sites More sharing options...
SHADOW_UA Posted December 24, 2015 Author Share Posted December 24, 2015 6 minutes ago, kao said: Very nice! Attached is KG and uncommented source. But you must understand how this keygenme works - otherwise the source won't make any sense to you. KG_KeyGenME_SHADOW.zip EDIT: Merry Christmas everyone! Enjoy this time with your family... Nice, kao! Deserved gold 2 Link to comment Share on other sites More sharing options...
turissssst Posted December 24, 2015 Share Posted December 24, 2015 Bronze =( KeygenME--.exe 1 Link to comment Share on other sites More sharing options...
Guest greenbite Posted January 7, 2016 Share Posted January 7, 2016 Hello. I tried out this keygenme. So it is executing shellcode, which would display the good boy message. The shellcode is decrypted with hard-coded key; some bytes are replaced with other bytes generated from the name/serial combo, a check is done and finally executed. So it is possible to have certain name/serial combo to pass all the checks and yet segfault on running, as the generated shellcode is not proper. Link to comment Share on other sites More sharing options...
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