Snort mailing list archives

Re: Case sensitive fast pattern matches


From: waldo kitty <wkitty42 () windstream net>
Date: Wed, 05 Mar 2014 15:51:08 -0500

On 3/5/2014 10:02 AM, Mike Cox wrote:
Dear Snort Community,

I will keep this "short and sweet".  For many years I have appreciated the
functionality of the Snort fast pattern matcher.  Yet I often wish (read:
strongly desire) that it would be case-sensitive, or at the very least, have the
capability to specify if a fast pattern match should be case sensitive or not.

A case sensitive match should be more efficient that one that is not and a lot
of times, while I benefit from the overall performance enhancement from the fast
pattern matcher, the engine has to re-evaluate the content match again because I
need the match to be case sensitive so I can't set it as, "fast_pattern:only".
This is very frustrating (hence this email).

you can't set your content match as fast_pattern:only and then use regex to 
check the case sensitivity?

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