[Snort-users] Real Time Alert and Variables

Nicholas Horton fivetenets at ...14399...
Sun Jan 27 16:13:07 EST 2013


Thanks Greg.

I'll be splunking tomorrow.

Nick

On Jan 27, 2013, at 4:10 PM, Greg Williams <gwillia5 at ...15920...> wrote:

> Absolutely. It's an amazing piece of software.
> 
> Nicholas Horton <fivetenets at ...14399...> wrote:
> 
> 
> Perfect. Thanks Greg. Ill take a look.
> 
> I use snorby for alert gathering but just need another piece for performing automated tasks based on an alert.
> 
> Will Splunk pass variables to the script such as the source IP from an alert?
> 
> Nick
> 
> On Jan 27, 2013, at 3:19 PM, Greg Williams <gwillia5 at ...15920...> wrote:
> 
>> Nick, I use Splunk to do this.  I feed Splunk the fast alerts and the either send emails or run scripts off specific matched criteria. Example shutdown a port based on more than 5 outbound ZeroAccess alerts in 5 minutes.
>> 
>> Nicholas Horton <fivetenets at ...14399...> wrote:
>> 
>> 
>> 
>> Is this referring to alert, drop, log, pass, etc?
>> 
>> If so are you saying its possible that I can create a type to have to execute a command to the shell based on a specific alert?
>> 
>> This is what I'm looking for.
>> 
>> For example if rule 1:2924 gets triggered I not only want to alert me about it but actually kick of a script to so something in case it's in the middle of the night or I'm simply at lunch.  To automate certain known alerts that are harmful and could spread though the LAN. Maybe I would even shut off the switch port that the device is connected to if it has virus.
>> 
>> Does snort have this ability?  Can barnyard2?  I like using abilities of a given program and would prefer not adding another layer of complexity to the equation such as swatch but if that is what I need ill use it.
>> 
>> What is the best practice for having scripts kick off to the shell based on specific alerts?
>> 
>> Thanks again
>> Nick
>> 
>> On Jan 25, 2013, at 12:08 PM, Nicholas Horton <fivetenets at ...14399...<mailto:fivetenets at ...14399...>> wrote:
>> 
>> Perfect. Thanks. Ill take a look in the manual.
>> 
>> Nick
>> 
>> On Jan 25, 2013, at 12:00 PM, Y M <snort at ...15979...<mailto:snort at ...16053...79...>> wrote:
>> 
>> You can also use custom action types. You define them in snort.conf file, and use the new custom action type with your rules. Sorry can't provide resources at the moment, but it should be in the manual.
>> 
>> YM
>> ________________________________
>> From: Nicholas Horton<mailto:fivetenets at ...14399...>
>> Sent: ‎1/‎25/‎2013 7:26 PM
>> To: Snort Users<mailto:snort-users at lists.sourceforge.net>
>> Subject: [Snort-users] Real Time Alert and Variables
>> 
>> Is swatch still the best, only, current solution to kick off a script with variables such as source ip based on a specific snort alert?
>> 
>> Nick
>> 
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