Re: Unified Logging - BASE - Portscans

[James Lay <jlay () slave-tothe-box net>]

Extremely curious!  Can you:  diff the two portscan files to see if they
are different?  That's all I got...unless BASE reads portscan data from
the db, and snort puts in data into the db differently then barnyard2,
then I am TOTALLY at a loss..wild!

Thanks for keeping on this.

James

On 7/26/11 8:21 PM, "Michael Steele" <michaels () winsnort com> wrote:

> James,
>
> Ok, I restarted two completely separate instances, and they are running
> simultaneously:
>
> VM1: Snort / MySQL / BASE / Unified Logging
> VM2: Snort / MySQL / BASE / Output Database Logging
>
> I am now receiving portscans into the portscan.log file on each VM.
>
> VM2 is the only instance that displays the portscans in the BASE console.
>
> VM1 is configured with Unified2 logging and is receiving portscans into
> the
> portscan.log file but BASE is not processing them.
>
> I'm guessing someone needs to jump in here that has some knowledge of how
> BASE processes the portscans in order to find out why portscans are being
> logged into the portscan.log file, but not processed when Unified2 logging
> is used.
>
> Kindest regards,
> Michael...
>
>
> -----Original Message-----
> From: James Lay [mailto:jlay () slave-tothe-box net]
> Sent: Monday, July 25, 2011 10:28 PM
> To: Michael Steele; Snort
> Subject: Re: [Snort-users] Unified Logging - BASE - Portscans
>
> Done and done...nmaped from another netblock I control...sanitized output.
>
> Time: 07/25-20:25:10.421362
> event_id: 1
> netblock -> external.ip (portscan) TCP Portscan Priority Count: 5
> Connection
> Count: 59 IP Count: 1 Scanner IP Range: netblock ip range Port/Proto
> Count:
> 62 Port/Proto Range: 21:55600
>
>
> My output lines in snort.conf:
>
> output alert_syslog: LOG_AUTH LOG_ALERT
> output alert_fast: snortalert.fast
> output log_tcpdump: snort.pcap
> output unified2: filename snortalert.unified
>
> Base still doesn't seem to be able to read it though, which is kind of a
> drag (even after changing perms to 0644).
>
>
> James
>
>
>
> On 7/25/11 4:45 PM, "Michael Steele" <michaels () winsnort com> wrote:
>
> > James,
> >
> > My portscan.log is 0 bytes. If I turn unified logging off, and turn the
> > output database plugin on, the portscan.log file will populated with
> > portscan alerts.
> >
> > This is strange, so you have unified logging turned on and you are
> > receiving data into the portscan.log file? Can you verify that it's
> > really working by stopping the snort service deleting the file and
> > restarting the snort service to see if alerts will continue to populate
> > the portscan .log file?
> >
> > Kindest regards,
> > Michael...
> >
> > -----Original Message-----
> > From: Lay, James [mailto:james.lay () wincofoods com]
> > Sent: Monday, July 25, 2011 6:00 PM
> > To: Michael Steele; snort-users () lists sourceforge net
> > Subject: RE: [Snort-users] Unified Logging - BASE - Portscans
> >
> > Hi Michael,
> >
> > Now that's odd...my sfportscan line:
> >
> > preprocessor sfportscan: proto  { all } memcap { 10000000 } sense_level
> > { low } logfile { portscan.log }
> >
> > And a tail of my portscan.log:
> >
> > Time: 07/25-06:37:31.148528
> > event_id: 750
> > 92.126.55.42 -> external.ip (portscan) UDP Portscan Priority Count: 45
> > Connection Count: 86 IP Count: 5 Scanner IP Range:
> > 74.50.52.136:92.126.55.42
> > Port/Proto Count: 5 Port/Proto Range: 6881:44898
> >
> >
> > I'm betting this is a different format from 2009's sfportscan?  I dunno
> > :(
> >
> > James
> >
> > > -----Original Message-----
> > > From: Michael Steele [mailto:michaels () winsnort com]
> > > Sent: Monday, July 25, 2011 3:23 PM
> > > To: Lay, James; snort-users () lists sourceforge net
> > > Subject: RE: [Snort-users] Unified Logging - BASE - Portscans
> > >
> > > James,
> > >
> > > Thanks for taking a look. I know there a LOT of users on all
> > > platforms
> > still
> > > using BASE as their console. I was talking to Jason and he tells me
> > that
> > > when unified2 logging is used, all alerts go into the unified log
> > file, and
> > > I'm assuming that includes portscans.
> > >
> > > Seems someone would have came up with a solution to view portscans in
> > the
> > > BASE console using unified logging.
> > >
> > > The below is used in order for BASE to grab the portscans, at least
> > > it worked with 'output database':
> > > preprocessor sfportscan: proto { all } memcap { 10000000 }
> > > sense_level
> > { low
> > > } logfile { portscan.log }
> > >
> > > When the above ' preprocessor sfportscan:' is used with unified
> > logging all
> > > it does is create the portscan.log file and never injects portscans
> > into the
> > > log file.
> > >
> > > I'm not even real sure if the ' preprocessor sfportscan:' is even
> > needed
> > > using unified logging method, and I'm not real sure how to turn
> > portscans on
> > > wnen using unified2 logging:
> > > preprocessor sfportscan: proto { all } memcap { 10000000 }
> > > sense_level
> > { low
> > > }
> > >
> > > And will the above log portscans to the unified log file?
> > >
> > > Kindest regards,
> > > Michael...
> > >
> > >
> > > -----Original Message-----
> > > From: Lay, James [mailto:james.lay () wincofoods com]
> > > Sent: Monday, July 25, 2011 3:29 PM
> > > To: Michael Steele; snort-users () lists sourceforge net
> > > Subject: Re: [Snort-users] Unified Logging - BASE - Portscans
> > >
> > > > -----Original Message-----
> > > > From: Michael Steele [mailto:michaels () winsnort com]
> > > > Sent: Friday, July 22, 2011 9:13 PM
> > > > To: snort-users () lists sourceforge net
> > > > Subject: [Snort-users] Unified Logging - BASE - Portscans
> > > >
> > > > I noticed that moving from output database to unified logging that
> > > portscans
> > > > are no longer displayed in the BASE console.
> > > >
> > > > Is there a solution to get this feature back to working in BASE?
> > > >
> > > > Kindest regards,
> > > > Michael...
> > >
> > > Michael, FWIW I tried in vain to get this to fly at home...I have the
> > > portscan.log file being created as well as pointing to the right spot
> > in
> > > base_conf.php, but nothing shows up.  I suspect it's a difference in
> > the
> > > file format from the time BASE was made.  I'm sure an enterprising
> > soul
> > > could make the mods to the php files, but that wouldn't be me ;)  For
> > now I
> > > do without portscan info...BASE gives me what I need without.
> > >
> > > James
> > -----------------------------------------------------------------------
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> >
> >
> >
> >
> > -----------------------------------------------------------------------
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>
>
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