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MORHSN81
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 Posted: Sat Jun 02, 2007 3:03 am Post subject: [Request] How to code Dupex in C++ |
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Im personally extremly confused and lost, I have this code Me and my friends made, but it doesn't work,
Can anyone show me how or something?
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Madman
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| Posted: Sat Jun 02, 2007 7:36 am Post subject: |
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it shouldnt be too different than others
like
__asm
code
i dont think you use the allocating crap though... ive never put scripts into code b4 
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SXGuy
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| Posted: Sat Jun 02, 2007 7:59 am Post subject: |
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dont quote me, but i think if you were to convert a script to a code cave, and then use that for c++
_ASM {
}
it should work.
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MORHSN81
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| Posted: Sat Jun 02, 2007 10:47 am Post subject: |
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Nuuuu,
I can't just take the code and put it in __asm 
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TheSorc3r3r
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| Posted: Sat Jun 02, 2007 1:16 pm Post subject: |
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READ BOOKS ON C++ BEFORE YOU POST ABOUT IT (OR ASK ME ON MSN!)
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SXGuy
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xentar
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| Posted: Mon Jun 04, 2007 7:54 am Post subject: |
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You can almost use the AA script in C as is.
If in your script you use a "ret" to go back to right after you branch off to your script. Then you must do a push 0xXXXXXXXX, this X is your jump back address at the beginning of your script.
For example:
if you plan to hook at address 1000, assume the 5 bytes you are to place your jump is already perfectly code align. So your jump back address will be 1005, if it not perfectly align, you must add appropriate nop then adjust the jump back address.
| Code: |
void __declspec(naked) dupexDetour(void)
{
__asm
{
push 0x1005
//your scripts
ret
}
}
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1000 : jmp dupexDetour
1005 : blah blah
Another is you don't use 'ret' to go back to the calling code, but use jump, in that case you don't push the jump back address
| Code: |
void __declspec(naked) dupexDetour(void)
{
__asm
{
//your scripts
jmp 0xXXXXXXXX
}
}
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You need to calculate the offset for X and patch that jump accordingly, you only know what that offset is after your code is loaded into memory. So you have to patch this jump before it execute.[/code]
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