x64 XOR Shellcode Encoder / Loader - Perl
Read these first:

www.klake.org/~jt/encoder/
www.security-assessment.com/Presentations/BM_Brightstar_2004.ppt

These didnt do what I wanted, aka work on x64 etc, so I did a
_much_ more basic (using as/ld/objdump) one to do what I wanted...

Source
http://pastebin.com/jL5egjZe

by
lucifer