SaNGa
June 1st, 2002, 17:53
I wrote this simple crackme, tell me about my work!
http://space.tin.it/clubnet/esangale/clubnet/esangale/tutorials.htm
http://space.tin.it/clubnet/esangale/clubnet/esangale/tutorials.htm
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Originally posted by [NtSC] ------------------------------------- Fishing a Serial for Sangas CrackMe1 ------------------------------------- Tricks: - Bpx-Check (CC) - MeltIce - MeltIce-Check is executed after startup.. Bpx CreateFileA +1 -> e eax 00 Name : [NtSC] Serial: 123456 017F:004031D4 5B 4E 74 53 43 5D 00 00-00 00 00 00 00 00 00 00 [NtSC].......... 017F:004031E4 00 00 00 00 54 45 56 42-46 56 00 00 00 00 00 00 ....TEVBFV...... 017F:004031F4 00 00 00 00 00 00 00 00-31 32 33 34 35 36 00 00 ........123456.. Correct Serial: TEVBFV ![]() |
Originally posted by [NtSC] Patch-Adress: 40109c - New Bytes: e9 85 00 00 00 - Result: Kill MeltIce-Check Patch-Adress: 4014e0 - New Bytes: 90 90 - Result: Any Serial Valid I dont see any Tricks that stop me to exchange my Patch-Bytes with your original Ones. So i dont see the Patching Challenge really at the Moment.. |
Originally posted by ZaiRoN hi [NtSC], you are right! two bytes-patch and the crackme will accept all name/reg combo. i want to add a little thing about the proggie. i don't know if it's a bug or is a feature of the crackme but it accept only 1 valid name/reg combo. if you try a second time the proggie will crash. this because the call in 401470 receive GetDlgItemTextA and not the encrypted string.... bye, ZaiRoN |