Re: How to threshold ALL sigs

["Jefferson, Shawn" <Shawn.Jefferson () bcferries com>]

The best thing to do, if you aren't interested in Snort alerting on this traffic is to use a BPF to not pass it to 
Snort in the first place.  If you can't do that, or don't want to, then perhaps a custom pass rule? (or rather probably 
two, one for each direction.)


-----Original Message-----
From: Turnbough, Bradley E. [mailto:bturnbough () belcan com] 
Sent: May 28, 2014 11:49 AM
To: snort-users () lists sourceforge net
Subject: [Snort-users] How to threshold ALL sigs

Hi All,

Is there a way to threshold ALL sig alerts, but doing so based upon source IP and dest ip (session aware)?

Before thresholding:

sourceipA ------> destipA  ---- Alert A #1 10:29:15 sourceipA ------> destipA  ---- Alert A #2 10:29:26 sourceipA 
------> destipA  ---- Alert A #3 10:29:39 sourceipB ------> destipA  ---- Alert A #4 10:29:42 sourceipB ------> destipA 
 ---- Alert A #5 10:29:55 sourceipB ------> destipA  ---- Alert A #6 10:30:12

After thresholding:

sourceipA ------> destipA  ---- Alert A #1 10:29:15 sourceipA ------> destipA  ---- Alert A #2 10:29:26 ------ not 
logged (thresholded) sourceipA ------> destipA  ---- Alert A #3 10:29:39 ------ not logged (thresholded) sourceipB 
------> destipA  ---- Alert A #4 10:29:42 sourceipB ------> destipA  ---- Alert A #5 10:29:55 ------ not logged 
(thresholded) sourceipB ------> destipA  ---- Alert A #6 10:30:12------ not logged (thresholded)

I want to basically write one rule / threshold for this.  I don't want to maintain a huge library of thresholds.  Any 
ideas?



Thanks,

Brad
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