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Need some Inline Assembler Help

 
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vegito616
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PostPosted: Tue Jan 15, 2008 10:10 pm    Post subject: Need some Inline Assembler Help Reply with quote
How can you nop an address with the C++ inline assembler?
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sponge
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PostPosted: Wed Jan 16, 2008 12:50 am    Post subject: Reply with quote
Code:
mov dword ptr [ADDRESS], 90909090
mov word  ptr [ADDRESS], 9090
mov byte  ptr [ADDRESS], 90


Assuming this is an injected dll.
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vegito616
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PostPosted: Wed Jan 16, 2008 6:57 am    Post subject: Reply with quote
When I try that code, it gives me a "improper operand type" type error.

Code:
_asm{
mov word  ptr [0x005D9014], 9090
}
[/code]
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Noz3001
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PostPosted: Wed Jan 16, 2008 7:23 am    Post subject: Reply with quote
Code:
_asm
   {
      mov byte ptr ds:[0x00400028], 0x90
   }
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vegito616
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PostPosted: Wed Jan 16, 2008 7:53 am    Post subject: Reply with quote
What if I needed to do:
Code:
db 90 90 90 90 90 90

How would I accomplish that since it requires more than 4 nops.
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assaf84
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PostPosted: Wed Jan 16, 2008 8:48 am    Post subject: Reply with quote
Move a DWORD and then a BYTE.. Or write 1 byte 5 times in a loop..
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