[Oisf-users] EXTERNAL: Re: Making Suricata Alert Per Matching Packet

Rasmor, Zachary R zachary.r.rasmor at lmco.com
Tue Apr 12 14:51:05 UTC 2016

Hi Shane,

Good questions, I've had some similar ones myself and haven't totally gotten 
to the bottom of them yet. As a test, you might try adding "flow: no_stream" 
(for inspecting packets only) and "flow: only_stream" (for streams only) and 
seeing how your results change in each case.


Zach Rasmor
Email: zachary.r.rasmor at lmco.com
Office: 301.240.6116

-----Original Message-----
From: Oisf-users [mailto:oisf-users-bounces at lists.openinfosecfoundation.org]
On Behalf Of Cooper F. Nelson
Sent: Monday, April 11, 2016 6:32 PM
To: Shane Boissevain <shaneboissevain at gmail.com>
Cc: oisf-users at lists.openinfosecfoundation.org
Subject: EXTERNAL: Re: [Oisf-users] Making Suricata Alert Per Matching Packet

Did you try the text-only alerts?

On 4/11/2016 3:30 PM, Shane Boissevain wrote:
> So i guess my refined-refined question is:
> Should the above "Test Rule 2" IP-Only Signature (with no thresholding
> in
> place) trip on every packet seen from, or only on the first
> packet of the session? It seems intuitive to me that it would trip on
> every packet, but this is not the behavior I'm experiencing.
> ~ Shane

Cooper Nelson
Network Security Analyst
UCSD ITS Security Team
cnelson at ucsd.edu x41042

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