Re: Process Snort alerts on real time

[Marcin Dulak <marcin.dulak () gmail com>]

On Tue, Feb 21, 2017 at 5:21 PM, Nora Aron <valeparatodo () gmail com> wrote:

> *"in that case, you could whip up something in perl that monitors the
> alert file and sends your flash message when it detects what you've
> configured it to react to... i have maintained an active response tool that
> effectively tails the alert file and issues iptables/ipset rules based on
> activity... you can do similar except instead of iptables/ipset stuff, do
> your text messaging thing..."*
>
> Yes, maybe I am not clear with my target due to language. I don't need any
> text messaging thing. I just need to know when a new alert has been
> triggered, so then I would extract all the packet to be analysed by another
> module of my system.
> I found ids-tools <http://idstools.readthedocs.io/en/latest/unified2.html>
> by jasonish. Some of these scripts are also included in snort/tools, such
> us u2spewfoo. In the library they have a SpoolEventReader script which is
> something similar to what I need, since it is continuosuly reading logs. So
> with that simple code:
>
> reader = unified2.SpoolEventReader("/var/log/snort", "snort.u2")for event in reader:
>     print(event)
>
> I have my current log being tailed.
>
> So I just would have to get the event and run my program in spite of just
> printing it. But I am trying to figure out the format of the packet that it
> is providing to me. It is not hex nor binary.
> \x00!\xd7j\xe4\x00\xdcJ>\x88*R\x08\x00E\xc0\x00q\xf4\xf0\x00\x00@
> \x01;\x92\.....
>
> Is that a common format?

http://seclists.org/snort/2017/q1/11


> Thanks
>
>
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