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Re: alpha numeric exploitation
From: Berend-Jan Wever <berendjanwever () gmail com>
Date: Mon, 30 May 2005 12:46:14 +0200

I'm trying to develop an alphanumeric payload that needs to do a JMP -600 
bytes... 
ALPHA2 encodes shellcode to alphanumeric, unicode alphanumeric, uppercase 
alphanumeric and uppercase unicode alphanumeric.
http://www.edup.tudelft.nl/~bjwever/documentation_alpha2.html.php
You can download the source and compile it or use the online version.
Beyond that, I'd be extremely surprised if someone hasn't written 
tutorials on doing alphanumeric-only payloads,
Writing ia32 alphanumeric shellcodes by rix:
http://www.phrack.org/show.php?p=57&a=15
Building IA32 'Unicode-Proof' Shellcodes by obscou:
http://www.phrack.org/show.php?p=61&a=11
Writing IA32 Restricted Instruction Set Shellcode Decoder Loops by SkyLined
http://www.edup.tudelft.nl/~bjwever/whitepaper_shellcode.html.php
if not even provided toolkits to take arbitrary code and "ASCII-fy" it. 
See ALPHA2.
Would dissembler do what you want? It should be able to squeeze the 
ascii shellcode for you ;-) 
Nice tool ;) But printable characters are not all alphanumeric characters.
 Cheers,
SkyLined

-- 
Berend-Jan Wever <berendjanwever () gmail com>
http://www.edup.tudelft.nl/~bjwever
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