Alphanumeric shellcode: Difference between revisions

Revision as of 17:28, 17 April 2005

Revision as of 14:32, 8 January 2006

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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 understandable and processable by a computer. One such alphanumeric code is [[ASCII]].

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

ThisWriting isalphanumeric possible to docode withrequires a (very) good understanding of themachine [[assemblycode language]]encoding scheme for the specific computerarchitecture that the code is intendedto forexecuted on.

This code is used by [[Cracker (computing)|cracker]]s with the intent of fooling applications, such as Web forms, into accepting code used for [[exploit (computer science)|exploit]]. Typically, such exploits involve [[buffer overflow]]s.