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  gnukish     July 30, 2009 12:43.11 CDT
Gameguard emulator/killer, find it ... study it, and use it.

Game hacking isn't easy because a lot of games are packed with custom/known packers. There's also some anti-debug/anti-disassembly tricks involved while reversing games. So try referring the OpenRCE library and a few books.

  jumpzero     July 30, 2009 20:25.47 CDT
well, ollydbg has a bug when it analyzes certain instructions concerned with fpu

there are several patches out there which fixes it, i'm using phant0m plug in.

or just stop the debugger on system-break, and edit the binary near entrypoint u see. just make any of ff ff ff ff's into 90(nop)s.

or of course u can write your own patch.

it might trigger the self modification senser of themida, so i suggest using a patch.

i'm afraid to tell u it won't be easy to unpack themida and recover the original exe when u don't even know these basic things.(no offense)

  cli4fun     August 18, 2009 17:44.38 CDT
hi Cluster, i would like to know your progress with this :)

as i'm learning too, we can share some ideas maybe ...

unfortunately i have just wine to run those "targets" that use gameguard.

i have to install windows i guess :/

but anyway, i hate that "rootkit", i was looking some days ago to play some games in the linux, then i was unhappy because most online games use this thing :(

i would like to ask the experienced crackers or reversers that have dealed with it ...

is possible to patch just the "target" and lave the gameguard?

i sure i can't run gameguard with wine, so thats the only way ...

  cli4fun     August 19, 2009 13:37.56 CDT
Today i downloaded the demo of "Themida", what was the surprise? :P

Its packed with Themida too, so no way to try study some apps with it through wine.

Maybe some years ahead i try again!

Anyway, if you Cluster got some good news about it i would like to hear about.

Good luck with it.

  Sirmabus     August 20, 2009 05:14.22 CDT
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