[Full-Disclosure] New whitepaper: Writing IA32 Restricted Instruction Set Shellcode Decoder Loops

["Berend-Jan Wever" <skylined@xxxxxxxxxxxxxxx>]

Hi all,

This one got rejected by phrack and I couldn't be arsed to rewrite it so it 
would make the next edition:
"Writing IA32 Restricted Instruction Set Shellcode Decoder Loops" by SkyLined
( http://www.edup.tudelft.nl/~bjwever/whitepaper_shellcode.html )

The article addresses the requirements for writing a shellcode decoder loop 
using a limited number of characters that limits our instruction set. Most of 
it is based on my experience with alphanumeric decoders but the principles 
apply to any piece of code that is written to work with a limited instruction 
set. (It's a continuation on rix's and obscou's work for phrack).

Comments and questions welcome, but I can not guarantee an answer to n00b 
questions.

Cheers,
SkyLined

http://www.edup.tudelft.nl/~bjwever
<skylined@xxxxxxxxxxxxxxx>


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