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Re: Logging Reassembled Packets

From: John Curry <john.curry () metre net>
Date: Fri, 14 Mar 2008 03:15:35 -0500
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 () gmail com <mailto:william.metcalf () gmail com>> 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 () gmail com
    <mailto:cjeremy () gmail com>> 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 () sourcefire com <mailto:roesch () sourcefire com>> 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 () sourcefire com <mailto:joel.esler () sourcefire com>
    >  >  >> >
    >  >  >> 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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    >  >  >>>
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    >  >  >>>
    >  >  >>>
    >  >  >>> --
    >  >  >>> Joel Esler  joel.esler () sourcefire com
    <mailto:joel.esler () sourcefire com>
    >  >  >>>
    >  >  >>>
    >  >  >>>
    >  >  >>>
    >  >  >>>
    >  >  >>
    >  >  >>
    >  >  >>
    >  >  >>
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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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