Snort mailing list archives

Re: Gathering the session for a two rule setup


From: Joshua Ochsankehl <joshua.ochsankehl () gmail com>
Date: Tue, 31 Jan 2017 12:06:37 -0600

I can't put it up here due to business concerns but maybe I didn't explain
it very well.  The purpose is to capture traffic from the beginning of a
session with a no alert and a packet or more later capture the rest of the
session with a second rule.  The traffic still need to capture the entire
session in PCAP so that the identifying issue can be determined.  This is
to weed out the not founds and situations where the traffic was stopped.

On Mon, Jan 30, 2017 at 4:37 PM, Joel Esler (jesler) <jesler () cisco com>
wrote:

Can you capture a pcap of the traffic you are attempting to analyze and
throw it on here?

*--*
*Joel Esler *| *Talos:* Manager | jesler () cisco com






On Jan 30, 2017, at 5:16 PM, Joshua Ochsankehl <
joshua.ochsankehl () gmail com> wrote:

I am using an older version of Sourcefire 5 and I am trying to capture
some traffic using two rules one looking for a specific uri string and this
rule sets the flowbit and packet tagging for 10 packets also turned to
noalert.  Then I wrote the second rule to capture the 200 OK response from
the session looking for the flowbit.  This works but doesn't return to the
session only the 200 OK.  Is there a keyword I am not thinking about?  and
the noalert has no baring on the results.  I've tested just about every
variation of this and can't seem to get it.  NOTE: I'm trying to avoid full
packet capture and just need Full packet on a case by case basis.
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