[Bro] Scanned Unique Host
zeolla at gmail.com
Thu Dec 28 17:02:12 PST 2017
Would https://github.com/JonZeolla/scan-sampling do what you're looking
for? It's in bro-pkg as well.
On Thu, Dec 28, 2017, 15:55 Azoff, Justin S <jazoff at illinois.edu> wrote:
> > On Dec 28, 2017, at 3:40 PM, Johanna Amann <johanna at icir.org> wrote:
> >> This has come up a few times.. What do you think of the idea of adding
> a tags field to conn.log like http.log has?
> > That might be a good idea - even though I am always a bit hesitant to add
> > new fields to conn.log. One small drawback is that this approach will
> > always only mark future connections as scan connections - all the ones
> > that actually caused something to be recognized as scanning activity will
> > probably already have been logged into conn.log (and we don't actually
> > have the connection UIDs - at least at the moment).
> Yeah.. I don't really want to add a new field either, but I think it could
> be useful in a few places.
> Maybe I just need to come up with a handful first :-)
> I thought it would work fine for scans.. all my scan.bro does is this:
> event connection_attempt(c: connection)
> if ( c$history == "S" )
> event connection_rejected(c: connection)
> if ( c$history == "Sr" )
> So as long as I could add to c$conn$tags from those 2 events before the
> log is written, it would work.
> > So - adding a sample of IPs might still make sense. Or even make more
> > sense in this case.
> I was thinking about doing that, but the only good place I know of to put
> a lot of info is in email_body_sections, and that doesn't make it to the
> Justin Azoff
> Bro mailing list
> bro at bro-ids.org
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Bro