RE: How to detect drive letters accessed?

[David Hondel <dhondel () eci2 com>]

Paul,

        I've not sniffed a connection like this to see what is sent, but:

- I'm assuming that you're running a Windows system
- You don't mention a share name
        
        In other words, the "k:\" probably is never sent over the network.
Perhaps you should try detecting "k$\" or whatever the share name is.

        For example if I run the command "net use * \\<ip>\k$",  I don't
think that my machine ever really knows that I'm using a drive that is
referred to as k: on the target system.... 

-----Original Message-----
From: snort-users-admin () lists sourceforge net
[mailto:snort-users-admin () lists sourceforge net]On Behalf Of Sheahan,
Paul (PCLN-NW)
Sent: Wednesday, January 16, 2002 5:20 PM
To: Snort List (E-mail)
Subject: [Snort-users] How to detect drive letters accessed?



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)?

Thanks!
Paul


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