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change a adress

 
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sonexa
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Joined: 19 Sep 2011
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PostPosted: Fri Jan 20, 2012 2:29 pm    Post subject: change a adress Reply with quote

hey guys, i'm trying to change a value of a adress, but i cant because the game has gameguard, and i cant edit the code

i tried use a code cave, and i cant too, the gameguard always detect

how i can change ?

i think, i need breakpoint this adress and change the register, but, how i can do it?
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SwaggaJackin'
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PostPosted: Fri Jan 20, 2012 3:07 pm    Post subject: Reply with quote

Bypass game guard. v_v
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Unbr0ken
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PostPosted: Fri Jan 20, 2012 4:15 pm    Post subject: Re: change a adress Reply with quote

sonexa wrote:
hey guys, i'm trying to change a value of a adress, but i cant because the game has gameguard, and i cant edit the code

i tried use a code cave, and i cant too, the gameguard always detect

how i can change ?

i think, i need breakpoint this adress and change the register, but, how i can do it?


I don't know if this still works, but... try inject a .dll into the process before the gameguard is completely loaded, i guess you'll be able to manage that memory with some comands like memcpy, etc... (In case of C++).

You must need to know about Pointers in programming.
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Stylo
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PostPosted: Fri Jan 20, 2012 5:19 pm    Post subject: Reply with quote

It'll still be useless since CRC checks will run over the code for changing and will crush the game.
CRC Bypass Smile Good luck.

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Stylo
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sonexa
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PostPosted: Fri Jan 20, 2012 5:31 pm    Post subject: Reply with quote

how i can make a CRC bypass?
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SwaggaJackin'
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PostPosted: Fri Jan 20, 2012 6:12 pm    Post subject: Reply with quote

Find the code that makes the check for the CRC and "give it" the CRC it's looking for.
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Unbr0ken
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PostPosted: Fri Jan 20, 2012 6:49 pm    Post subject: Reply with quote

Stylo wrote:
It'll still be useless since CRC checks will run over the code for changing and will crush the game.
CRC Bypass Smile Good luck.


A few years ago, the method mentioned worked without problems with most (if not all) games that were "protected" with GameGuard. Now, I have no idea how it works. But, I guess that the CRC Bypass isn't the only way to jump the protection.
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sonexa
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PostPosted: Fri Jan 20, 2012 7:04 pm    Post subject: Reply with quote

oh no, i'm back to 0 position
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scribly
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PostPosted: Fri Jan 20, 2012 8:20 pm    Post subject: Reply with quote

Have you tried the stealthedit plugin for CE geri posted here ? http://www.szemelyesintegracio.hu/cheats/41-game-hacking-articles/419-stealthedit

Or is this for a program you made yourself ?
Edit: seeing gameguard I assume you haven't made a undetected CE yourself and loaded that plugin, I'll assume your own app
See if you can do the same as that plugin
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sonexa
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PostPosted: Sat Jan 21, 2012 3:58 am    Post subject: Reply with quote

yea, i think, i will create a simple dll, for it
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