Snort mailing list archives

RE: How to detect drive letters accessed?


From: "Sheahan, Paul (PCLN-NW)" <Paul.Sheahan () priceline com>
Date: Wed, 16 Jan 2002 18:01:25 -0500


Thanks Phil. What exactly does "|4b3a5c|" signify? If I want to use
different drive letters etc, how would this appear in a rule? It would be
nice to be able to create these myself but I'm not sure how you came up with
this! Any info would be appreciated!

Thanks,
Paul



-----Original Message-----
From: Phil Wood [mailto:cpw () lanl gov]
Sent: Wednesday, January 16, 2002 5:34 PM
To: Sheahan, Paul (PCLN-NW)
Cc: Snort List (E-mail)
Subject: Re: [Snort-users] How to detect drive letters accessed?


On Wed, Jan 16, 2002 at 05:19:37PM -0500, Sheahan, Paul (PCLN-NW) wrote:

Running Snort 1.8.1 B78 on RH Linux 7.0.

Using Snort, I am trying to detect when someone accesses a certain drive
on
one of my servers. For example if I have a server that has a drive letter
K:
that no one from the outside world should see or be accessing, I'd like to
create a rule in Snort that checks for "K:\" in a packet. The trouble is,
I
can't just create a rule that searches for "K:\" because the rule doesn't
work. I think the colon screws it up or something. Someone in this forum
once mentioned putting some type of code in for the colon and backslash
instead such as creating a rule to look for "K|C3A|" or something like
that,
but all recommendations from that person failed.

Does anyone know how I can create a rule to search for "K:\" (can be any
drive letter....it's the colon and backslash that are important)?

  "|4b3a5c|"


Thanks!
Paul


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-- 
Phil Wood, cpw () lanl gov

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