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johnnygg
Advanced Cheater
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Joined: 20 Jan 2010
Posts: 51
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 Posted: Tue Mar 09, 2010 10:24 pm Post subject: hook hop |
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hi all I'm back!
so, I can't find any bypasses, and no one wants to write a tutorial or even list any sources about where I can start to learn about how to make my own bypass.....SOOOOO
I wanted to ask about "hook hopping".
Someone mentioned it earlier as a solution to use API's (like sendmsg() and postmsg()) that might be hooked by a game's anti-hack protection.
My question is the following:
1. Is a 'hook hop' just another way of saying 'bypass'?
2. If not, what is a hook hop, and where can I learn more about them?
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Guy
Expert Cheater
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Joined: 30 May 2009
Posts: 187
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| Posted: Sun Mar 14, 2010 5:24 pm Post subject: |
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They work by replacing the code which was hooked, then merely "hopping" over the hook, e.g.
SendMessageA's first 5 bytes may be:
| Code: |
MOV EDI, EDI
PUSH EBP
MOV EBP, ESP
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After a hook is added, the above x86 code may resemble:
Rather than calling SendMessageA directly, the following could be done:
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MOV EDI, EDI
PUSH EBP
MOV EBP, ESP
JMP SendMessageA + 5
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Note the "SendMessage + 5"; the overwritten code is merely jumped over, avoiding the hook entirely.
Regardless, this does no good when kernel mode hooks are in place; thankfully, with KPP on Windows 7, those will soon become a thing of the past.
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johnnygg
Advanced Cheater
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Joined: 20 Jan 2010
Posts: 51
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| Posted: Mon Mar 22, 2010 8:59 pm Post subject: |
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| thank you
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