[Snort-users] Logging Reassembled Packets

John Curry john.curry at ...14221...
Fri Mar 14 04:15:35 EDT 2008


Hello Kam,

SANCP provides ICMP and UDP session logging.  Version 1.6.1 is stable.
Link:   http://metre.net/sancp.html

Regards,

-John Curry

Kamran Shafi wrote:
> Thank you all for your kind replies, I am overwhelmed.
>  
> It is bit disappointing that the reassembled sessions can not be
> logged by Snort, afterall Snort CAN also work as a packet logger and
> log in pcap format, then why is it that there is no option to log the
> re-built packets - a functionality that Snort implements.
> BTW, I just wanted to have a summary record of each session (initiated
> with a 3WHS and terminated by a 4WHS) similar to the Snort's summary
> log packet for portscans - I am not sure how tcpdump or other software
> mentioned in this thread can do that. It looks like I will have to
> write one myself. In addition I also wanted to track UDP and ICMP
> sessions - any ideas on how to do that?
>  
> All this exercise to build a useful dataset for evaluating my little
> supervised learning algorithm aimed at intrusion detection - Ah!!!
>  
> On Fri, Mar 14, 2008 at 5:15 PM, Will Metcalf
> <william.metcalf at ...11827... <mailto:william.metcalf at ...11827...>> wrote:
>
>     If you have a couple of spare cpu's lying around you could always try
>     out gulp...
>
>     http://staff.washington.edu/corey/gulp/
>
>     Regards,
>
>     Will
>     On Thu, Mar 13, 2008 at 11:07 PM, Jeremy <cjeremy at ...11827...
>     <mailto:cjeremy at ...11827...>> wrote:
>     > Not trying to steal the thread here, but I have to ask since I have
>     >  never really stress tested damonlogger. Do you all think it
>     performs
>     >  better than tcpdump at writing packets to disk?  This never
>     crossed my
>     >  mine to evaluate before now, as I have only used damonlogger to
>     play
>     >  traffic out another interface....  If yes, any document on this
>     claim
>     >  out there?  Running to Google now to see if I can't find
>     something on
>     >  this while I wait for responses ;)
>     >
>     >  --jeremy
>     >
>     >
>     >
>     >  On Thu, Mar 13, 2008 at 8:40 PM, Martin Roesch
>     <roesch at ...1935... <mailto:roesch at ...1935...>> wrote:
>     >  > -----BEGIN PGP SIGNED MESSAGE-----
>     >  >  Hash: SHA1
>     >  >
>     >  >  Correction.  You should use Daemonlogger!
>     >  >
>     >  >  :)
>     >  >
>     >  >         -Marty
>     >  >
>     >  >
>     >  >
>     >  >  On Mar 13, 2008, at 8:20 PM, Jason wrote:
>     >  >
>     >  >  > snort is not intended to log full reassembled streams, it is
>     >  >  > intended to
>     >  >  > detect intrusion attempts and log the relevant data
>     associated with
>     >  >  > those attempts. If you want full session logging you
>     should use
>     >  >  > tcpdump.
>     >  >  >
>     >  >  > Kamran Shafi wrote:
>     >  >  >> I notice that there is a show_rebuilt_packets option in
>     steam5_global
>     >  >  >> configuration, which I have turned on but don't know if it is
>     >  >  >> producing
>     >  >  >> anything. I run snort on some traffic collected on a
>     web/dns/mysql
>     >  >  >> server
>     >  >  >> using -r flag. The log shows that snort filters out the
>     server's
>     >  >  >> response
>     >  >  >> and keeps only the inbound traffic - I am not sure if this
>     >  >  >> behaviour is
>     >  >  >> because of the stream 5 processor or else?
>     >  >  >>
>     >  >  >> On Fri, Mar 14, 2008 at 12:56 AM, Joel Esler
>     <joel.esler at ...1935... <mailto:joel.esler at ...1935...>
>     >  >  >> >
>     >  >  >> wrote:
>     >  >  >>
>     >  >  >>> Again, a visit to the readme's in the doc/ directory
>     should help
>     >  >  >>> you.
>     >  >  >>> Look up "log_flushed_streams" in the stream4 readme.
>     >  >  >>> Joel
>     >  >  >>>
>     >  >  >>>   On Mar 13, 2008, at 2:36 AM, Kamran Shafi wrote:
>     >  >  >>>
>     >  >  >>>  Hi All,
>     >  >  >>>
>     >  >  >>> Is there a way to log the reassembled (TCP/UDP/ICMP)
>     sessions in
>     >  >  >>> Snort?
>     >  >  >>>
>     >  >  >>> --
>     >  >  >>> Regards
>     >  >  >>> Kam
>     >  >  >>>
>     -------------------------------------------------------------------------
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>     >  >  >>>
>     >  >  >>>
>     >  >  >>> --
>     >  >  >>> Joel Esler  joel.esler at ...1935...
>     <mailto:joel.esler at ...1935...>
>     >  >  >>>
>     >  >  >>>
>     >  >  >>>
>     >  >  >>>
>     >  >  >>>
>     >  >  >>
>     >  >  >>
>     >  >  >>
>     >  >  >>
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>     >  >  -----BEGIN PGP SIGNATURE-----
>     >  >  Version: GnuPG v1.4.7 (Darwin)
>     >  >
>     >  >  iD8DBQFH2degqj0FAQQ3KOARAoGaAJ0Qunysz07riv/NwgSEyvkXuaKmvwCfRmjD
>     >  >  9vfsXaAbtb93a6aPRD4QPso=
>     >  >  =dxrz
>     >  >  -----END PGP SIGNATURE-----
>     >  >
>     >  >
>     >  >
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> -- 
> Regards
> Kamran Shafi
> +61 41 824 9510
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