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Network Security Nessus-Users
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Re: nessus scan ids

Subject: Re: nessus scan ids
Date: Fri, 24 Sep 2004 10:35:47 -0600
I don't think Nessus uses tactics to verify if the stealth scans it uses
are being detected. This would defeat the purpose of stealth scans since
verifying detection means detection. In other words, this would be
something like stealth detected scanning which is contradictory.

Nessus does use some tactics to defeat NIDS systems like double slashes in
HTTP or fake RST packets. More info and good references here:
http://www.nessus.org/doc/nids.html

-oscar

On Wed, 22 Sep 2004 13:20:55 -0400, Sidney Henry <sidneyhenry@hotmail.com>
wrote:

Hi,

Which of the following tactics can Nessus use to verify that an Intrusion
Detection System (IDS) can detect stealth scans?

thanks


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