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<span id="openzim-page-title" class="mw-page-title-main"><span class="mw-page-title-main">Extrusion detection</span></span>
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<p><b>Extrusion detection</b> or <b>outbound intrusion detection</b> is a branch of <a href="Intrusion_detection" class="mw-redirect" title="Intrusion detection">intrusion detection</a> aimed at developing mechanisms to identify successful and unsuccessful attempts to use the resources of a <a href="Computer_system" class="mw-redirect" title="Computer system">computer system</a> to compromise other systems. Extrusion detection techniques focus primarily on the analysis of system activity and outbound traffic in order to detect malicious users, <a href="Malware" title="Malware">malware</a> or network traffic that may pose a threat to the security of neighboring systems.
</p><p>While intrusion detection is mostly concerned about the identification of incoming attacks (intrusion attempts), extrusion detection systems try to prevent attacks from being launched in the first place. They implement monitoring controls at leaf nodes of the network—rather than concentrating them at choke points, e.g., <a href="Router_(computing)" title="Router (computing)">routers</a>—in order to distribute the inspection workload and to take advantage of the visibility a system has of its own state. The ultimate goal of extrusion detection is to identify attack attempts launched from an already compromised system in order to prevent them from reaching their target, hereby containing the impact of the threat.
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<div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2></div>
<ul><li><a rel="nofollow" class="external text" href="http://www.cl.cam.ac.uk/~rnc1/extrusion.pdf">"Stopping Spam by Extrusion Detection"</a></li>
<li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20070427040753/http://citeseer.ist.psu.edu/mandujano04outbound.html">"Outbound Intrusion Detection"</a></li></ul></div><!--htdig_noindex--><div><div class="zim-footer">
This article is issued from <a class="external text" title="Last edited on 2024-03-20" href="https://en.wikipedia.org/wiki/?title=Extrusion_detection&oldid=1214621200">Wikipedia</a>. The text is available under <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">Creative Commons Attribution-Share Alike 4.0</a> unless otherwise noted. Additional terms may apply for the media files.
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