Alphanumeric shellcode: Difference between revisions

Revision as of 22:52, 6 March 2008

Revision as of 22:36, 9 March 2008

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In general, in [[computing]], an '''alphanumeric code''' is a series of letters and numbers (hence the name) which are written in a form that can be processed by a computer.

In [[BSCS]] the alphanumeric characte have meaning: "a"-"z", "A"-"Z", "0"-"9". No special characters are included.

More specifically, in computer underground terminology, alphanumeric code is [[machine code]] that is written so that it assembles into entirely readable [[ASCII]] characters such as "a"-"z", "A"-"Z", "1"-"9", "#", "!", "@", and so on.

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==External links==

* [http://www.phrack.org/issues.html?issue=57&id=15#article Writing ia32 alphanumeric shellcodes], an article on how to write alphanumeric shellcode.

* [http://www.phrack.org/issues.html?issue=61&id=11#article Building IA32 'Unicode-Proof' shellcodes], an article on how to write unicode proof shellcode.

* [http://www.edup.tudelft.nl/~bjwever/whitepaper_shellcode.html.php Writing IA32 restricted instruction set shellcodes], an article on how to write code that is very limited in the number of characters it can use (such as alphanumeric code).

* [http://www.edup.tudelft.nl/~bjwever/documentation_alpha2.html.php ALPHA2], an alphanumeric shellcode encoder: Utility to encode normal machine code into alphanumeric (upper-case or mixed-case) ASCII or Unicode text

* [http://www.vividmachines.com/shellcode/shellcode.html#ps Shellcoding for Linux and Windows — Printable Shellcode]: Explanation and tutorial