RE: How to choose an IDS/FW MSS provider

["Andrew Plato" <andrew.plato () anitian com>]

1. I know ISS's language to some extent because I helped develop the
engine inside their product (I worked at Network ICE before ISS bought
them.) Some are simple pattern matches, many are not. 

2. I am familiar with Snort's rules (although I do not profess to be an
expert). I also know that Snort's rules, while very powerful and
flexible, are WELL beyond the capability of 90% of the IT and network
admins in the world. Most organizations don't take the time (nor do they
have the time) to analyze signatures. They are more consumed with things
like productivity and performance. I know this from my experience (10+
years) as an IT consultant.  

Thus my point - while seeing the details of a signature is fascinating
to security geeks, it is not terribly important to the vast majority of
IT admins. As such, I don't think the ability to see signature specs is
an important measure of the value of an IPS/IDS product. It may be
important to security nerds, but the general IT/network admin population
doesn't care that much. And frankly, products that do show their
signature details are rarely changed anyways.

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-----Original Message-----
From: Joshua Berry [mailto:jberry () PENSON COM] 
Sent: Tuesday, March 15, 2005 6:50 AM
To: Andrew Plato; Stephane; rick.brady () libertymutual com
Cc: focus-ids () securityfocus com
Subject: RE: How to choose an IDS/FW MSS provider

Since you can't see the signature, how do you know they aren't doing
simple string matching?  Second, obviously you aren't very familiar with
Snort's rule language, it isn't just simple string matching, there is a
*ton* of other logic available to reduce false positives/negatives.
Snort also has conveniently had support for PCRE matching for a long
time now.



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