IDS Evasion Techniques and Tactics

Tuesday, 7 May 2002, 10:10 AM EST

Blackhats, security researchers and network intrusion detection system (NIDS) developers have continually played a game of point-counterpoint when it comes to NIDS technology. The BlackHat community continually develops methods to evade or bypass NIDS sensors while NIDS vendors continually counter act these methods with patches and new releases. Throughout this article we will explain basic evasion techniques as well as suggest fixes or what to look for in many of these attacks.

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