Understanding How Shellcodes Work

by on May 20, 2006 · 0 comments· LAST UPDATED May 20, 2006

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A shellcode is a relocatable piece of machine code used as the payload in the exploitation of a software bug which allows an unauthorised user to communicate with the computer via the operating system's command line as a result of exploiting a vulnerability in software running on the machine

FTA... "It's also not easy to defend against users who might want to exploit your system, if you are a system administrator. However, writing an exploit by yourself, to convert a news line from bug tracker into a working lockpick, is much more difficult. This article is not a guide on writing exploits, nor an overview of popular vulnerabilities. This is a step-by-step guide on developing a shellcode, a crucial point of any exploit software. Hopefully, learning how they work will help conscientious and respectable developers and system administrators to understand how malefactors think and to defend their systems against them."

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