New whitepaper: Writing IA32 Restricted Instruction Set Shellcode Decoder Loops

["Berend-Jan Wever" <skylined () edup tudelft nl>]

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 () edup tudelft nl>