OSEC

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Re: creating a "cc" opcode from ASCII shell code

From: Dude VanWinkle (dudevanwinklegmail.com)
Date: Fri Jun 22 2007 - 19:09:39 CDT

On 6/22/07, Aaron Adams <aadamssecurityfocus.com> wrote:
> I'm sending this to the list on behalf of deros68 <at> yahoo.com. Please
> respond to the list or him directly, rather than me.
>
>
> -------- Original Message --------
>
> Only hex 20 -79 input
> survive untouched.

Have you tried using the CANVAS shellcode generator? I know you can
add "bad characters" to your exploit and then it will generate the
shellcode, excluding the characters you specified.

Every character left out however, will grow the size of the shellcode.
leaving out that many characters could make your shellcode too large,
but its worth a shot

-JP<What Valdis said but Lazier>