Neohapsis is currently accepting applications for employment. For more information, please visit our website www.neohapsis.com or email email@example.com
From: Berend-Jan Wever (berendjanwevergmail.com)
Date: Sat Jan 02 2010 - 14:48:40 CST
One limitation of most alphanumeric shellcode decoders, including those in *
* and the soon-to-be-released
* is that they need to know where they are located in memory in order to
decode themselves and run correctly. This makes using a *nopslide* hard in
most circumstances, because you mostly only need a *nopslide* if you do not
know exactly where your shellcode is in memory to begin with.
I've developed a way to get around this problem, which I've described in
more detail here:
ALPHA3 has support for generating working alphanumeric shellcode with
nopslides using this technique. I'm currently working on getting the rest of
its code into releasable shape.
Berend-Jan Wever <berendjanwevergmail.com>
Full-Disclosure - We believe in it.
Hosted and sponsored by Secunia - http://secunia.com/