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Re: [Snort-users] Snort and gzip Encode Question

Subject: Re: [Snort-users] Snort and gzip Encode Question
Date: Fri, 19 Aug 2005 10:35:48 -0400
Thanks for the reply.  I was wondering if SNORT can decode compressed
html.  mod_gzip for Apache "...allows for using the compression method
gzip for a significant reduction of the volume of web page content
served over the HTTP protocol."
http://www.schroepl.net/projekte/mod_gzip/

Basically the HTML content is compressed by the web server and sent to
the browser where it is uncompressed.  I'm thinking this may create
some challenges with SNORT.

-- 
-dajackman

On 8/19/05, Joel Esler <joel.esler@sourcefire.com> wrote:
It is possible to catch a gzip'ed file by looking for the gzip's hex
value..

I don't know if that is what you are looking for...  |1F 8B 08| is gz.
|50 4B 03 04| is .zip

Joel


On Aug 19, 2005, at 9:17 AM, dajackman wrote:

I'm trying to come up with a rule to catch this Internet Explorer
(.Net) 0day Exploit.  While playing around with a rule I came up with
a question I haven't found the answer to.  Can snort do anything with
compressed html/gzip
encoding?  A quick google search and SNORT Doc peek didn't produce
much.  Thanks.

-dajackman


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