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API Copying/Trampolines

 
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Jani
Grandmaster Cheater
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Joined: 29 Dec 2006
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PostPosted: Mon Sep 03, 2007 11:13 am    Post subject: Reply with quote

Hot patching<3 One of my methods bypassing kinda uses it, but on the other hand it doesn't. Your code looks hella complicated, my first version was complicated too. It scanned for all the functions then "hooked" them and so on, but then I thought; fuck portability etc, Imma hard code the addresses for my OS. It's way faster to use and it doesn't need initializing etc :P And it works too!

Should I post an example? Oh yeh, my example would be in C++/__asm, because I'm a C++ coder :p
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assaf84
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PostPosted: Mon Sep 03, 2007 11:43 am    Post subject: Reply with quote

The trampolina looks like a nice trick..
I mean, is it so easy? lol
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Flyte
Peanuts!!!!
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Joined: 19 Apr 2006
Posts: 1887
Location: Canada

PostPosted: Mon Sep 03, 2007 12:10 pm    Post subject: Reply with quote

assaf84 wrote:
The trampolina looks like a nice trick..
I mean, is it so easy? lol


User-mode hooks are easy to bypass, but they are not the ones you need to worry about. It is the kernel-mode hooks that do all of GG's dirty work.
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Chaos_Blader
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PostPosted: Fri Sep 07, 2007 6:28 pm    Post subject: Reply with quote

Jani, could you post your example, if you are willing too?
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Dark Byte
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PostPosted: Fri Sep 07, 2007 6:38 pm    Post subject: Reply with quote

For those that seen the fixmem sourcefiles, thats also called a trampoline
and works in kernelmode as you see

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Chaos_Blader
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PostPosted: Fri Sep 07, 2007 6:41 pm    Post subject: Reply with quote

Dark Byte wrote:
For those that seen the fixmem sourcefiles, thats also called a trampoline
and works in kernelmode as you see


When you say 'for those' do you imply that it is private?
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Dark Byte
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PostPosted: Fri Sep 07, 2007 6:44 pm    Post subject: Reply with quote

no, public
just meaning for those that actually looked at the sourcecode and tried to understand it (it's not with the normal sourcecode, it's with public source release of uce's)

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Jani
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PostPosted: Sat Sep 08, 2007 3:58 am    Post subject: Reply with quote

Chaos_Blader wrote:
Jani, could you post your example, if you are willing too?
I answered to your PM, before noticing this. So, check your PM. I'm too lazy to rewrite the things. </offtopic> :P
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