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List:       full-disclosure
Subject:    [Full-disclosure] Re: alpha numeric exploitation
From:       Berend-Jan Wever <berendjanwever () gmail ! com>
Date:       2005-05-30 10:46:14
Message-ID: 3fa2f5bb05053003463eb7007b () mail ! gmail ! com
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> 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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<div>&gt; I'm trying to develop an alphanumeric payload that needs to do a JMP -600 bytes... \
</div> <div>ALPHA2 encodes shellcode to alphanumeric, unicode alphanumeric, uppercase \
alphanumeric and uppercase unicode alphanumeric.</div> <div><a \
href="http://www.edup.tudelft.nl/~bjwever/documentation_alpha2.html.php">http://www.edup.tudelft.nl/~bjwever/documentation_alpha2.html.php</a></div>
 <div>You can download the source and compile it or use the online version.</div>
<div>&nbsp;</div>
<div>&gt; Beyond that, I'd be extremely surprised if someone hasn't written <br>&gt; tutorials \
on doing alphanumeric-only payloads,<br>Writing ia32 alphanumeric shellcodes by rix:</div> \
<div><a href="http://www.phrack.org/show.php?p=57&amp;a=15">http://www.phrack.org/show.php?p=57&amp;a=15</a></div>
 <div>Building IA32 'Unicode-Proof' Shellcodes by&nbsp;obscou:</div>
<div><a href="http://www.phrack.org/show.php?p=61&amp;a=11">http://www.phrack.org/show.php?p=61&amp;a=11</a></div>
 <div>Writing IA32 Restricted Instruction Set Shellcode Decoder Loops by SkyLined</div>
<div><a href="http://www.edup.tudelft.nl/~bjwever/whitepaper_shellcode.html.php">http://www.edup.tudelft.nl/~bjwever/whitepaper_shellcode.html.php</a></div>
 <div>&gt;&nbsp;if not even provided&nbsp;toolkits to take arbitrary code and \
&quot;ASCII-fy&quot; it. </div> <div>See ALPHA2.</div>
<div>&nbsp;</div>
<div>&gt; Would dissembler do what you want? It should be able to squeeze the <br>&gt; ascii \
shellcode for you ;-) </div> <div>Nice tool ;) But printable characters are not all \
alphanumeric characters.</div> <div>&nbsp;</div>
<div>Cheers,</div>
<div>SkyLined<br><br>-- <br>Berend-Jan Wever &lt;<a \
href="mailto:berendjanwever@gmail.com">berendjanwever@gmail.com</a>&gt;<br><a \
href="http://www.edup.tudelft.nl/~bjwever">http://www.edup.tudelft.nl/~bjwever</a> </div>



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