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Fwd: Create a rule that takes its content from a file.
From: Tony Robinson <deusexmachina667 () gmail com>
Date: Tue, 14 May 2013 10:29:45 -0400

Forwarding to mailing list.

---------- Forwarded message ----------
From: Tony Robinson <deusexmachina667 () gmail com>
Date: Tue, May 14, 2013 at 10:29 AM
Subject: Re: [Snort-sigs] Create a rule that takes its content from a file.
To: arneu sneu <arneu99 () hotmail com>


Hm...

You may want to look at the file-identify.rules category. This seems to be
right up your alley.

http://vrt-blog.snort.org/2011/11/say-hello-to-file-identify-category.html


On Tue, May 14, 2013 at 10:07 AM, arneu sneu <arneu99 () hotmail com> wrote:

Hi,

I just installed Snort a few days ago and started to play with it by
writing my own rules.
I would like my rule to take its content from a file, but I haven't find
any information on this topic, neither in the manual, nor on the Internet.
I found that the content-list keyword once existed in Snort, but it has
apparently been removed about 6 years ago. Too bad, because it was exactly
what I was looking for.
Would anybody have an idea on how to do such a thing with current snort
features? I could write a rule for each of the lines of my file or use pcre
with the list of possible values, but I was wondering if there was a way to
do it with a rule taking its content from a file. If not, what is the
correct approach to do this?

As an example, if I have a file containing a whitelist of file extensions,
I would like to raise an alert when an email attachment having an extension
that is not in the list is seen in the network traffic.

Many thanks for your help.

Cheers

Arneu



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when does reality end? when does fantasy begin?
------------------------------------------------------------------------------
AlienVault Unified Security Management (USM) platform delivers complete
security visibility with the essential security capabilities. Easily and
efficiently configure, manage, and operate all of your security controls
from a single console and one unified framework. Download a free trial.
http://p.sf.net/sfu/alienvault_d2d
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Please visit http://blog.snort.org for the latest news about Snort!

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