Re: Automated IDS Signature Generator?
From: Stefano Zanero (stefano.zanero_at_ieee.org)
Date: 06/18/03
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To: <focus-ids@securityfocus.com> Date: Wed, 18 Jun 2003 23:42:31 +0200
> Is there a utility/function/program that automatically generates an IDS
> signature based on a recording of a monitored exploit attempt?
It would be quite useless. For one thing, you must see more than one
attempt, since polymorphism is obviously an issue: so, you generally want a
signature which catches most forms of the attack. For another, you
definitely don't want it to generate false positives.
In other words you need to recognize a common pattern between different
exploits, and to avoid including legitimate traffic.
In other words, you need either a very good AI/datamining approach (still
working on it, sorry ;) or a very skilled analyst :)
Stefano
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