Windows Shellcode on Unix

[tyronmiller at gmail.com (Ty Miller)]

Hi Guys,

Thanks heaps for the responses.

HD, you were right on the money mate ... I am buying you a double burbon and
coke at Blackhat this year mate ... even if Microsoft does have to pay for
it! ;o)

I changed my compilation commands to the following, as suggested by HD;

$ nasm -f bin -o shellcode.bin shellcode.asm
$ xxd -i shellcode.bin

I also had to add the line "BITS 32" into my asm code since nasm seemed to
default to a 16 bit architecture. Once I did this, it worked like a gem.

Thanks again for your help and the quick responses.

Cheers,
Ty


On Thu, Jul 17, 2008 at 4:32 PM, Patrick Webster <patrick at aushack.com>
wrote:

> No idea how cygwin does its magic, but could it be that your shellcode
> is using a system call that is different under Cygwin -> Linux.
>
> I suppose the easiest way would be to use nasm under both environments
> and see if the shellcode result is different :)
>
> -Patrick
> _______________________________________________
> http://spool.metasploit.com/mailman/listinfo/framework
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