****SPAM(5.1)**** Re: Grouping connections

[Ulisses Araújo Costa <ulissesaraujocosta () gmail com>]

Joel Esler, with 'tag:session' I just can identify the session. I want be
able to identify connections.

2009/4/23 Joel Esler <jesler () sourcefire com>

> The fact that the alert took place tells you that flow X <> Y happened.
>
> J
>
> 2009/4/22 Ulisses Araújo Costa <ulissesaraujocosta () gmail com>
>
> > Hi Leon,
> >
> > what I want is to record that the request X have the response Y. What I
> > explained, is that probably the request X is just a packet, but the response
> > Y is 4 packets. The only thing I want to know is that the flow X <> Y
> > happened.
> >
> > 2009/4/22 Leon Ward <seclists () rm-rf co uk>
> >
> > Hi.
> > > Sorry I don't think I understand what you are asking. Can you share the
> > > goal you are trying to achieve rather than the method you are trying to
> > > resolve it by?
> > >
> > > > The idea is make Snort just consider that as 2 states (me making the
> > > request and google sending the response). The problem is I want to make that
> > > to connections, not sessions.
> > >
> > > If you need to differentiate between data in each flow direction, take a
> > > look at "flow".
> > >
> > > -Leon
> > >
> > >
> > >
> > >
> > > 2009/4/22 Ulisses Araújo Costa <ulissesaraujocosta () gmail com>
> > >
> > > > Joel,
> > > >
> > > > that's what I said:
> > > >
> > > > "
> > > > The problem is I want to make that to connections, not sessions.
> > > >
> > > > If it was sessions I can use the 'flag' keyword.
> > > > "
> > > >
> > > > But I *don't* want sessions.
> > > >
> > > > 2009/4/22 Joel Esler <jesler () sourcefire com>
> > > >
> > > > > Take a look at the tag keyword.
> > > > > http://www.snort.org/docs/snort_htmanuals/htmanual_284/node373.html
> > > > >
> > > > > The flags keyword simply will trigger on the presence of certain TCP
> > > > > flags set in the packet.  This is probably not what you want.
> > > > >
> > > > > J
> > > > >
> > > > > 2009/4/22 Ulisses Araújo Costa <ulissesaraujocosta () gmail com>
> > > > >
> > > > > >  Hello,
> > > > > >
> > > > > > I'm using Snort in a project. I'm wondering if with Snort I can group
> > > > > > packets from the same connection. For example: if I request
> > > > > > google.com, I just send one packet but the response came in (imagine)
> > > > > > 4 packets. The idea is make Snort just consider that as 2 states (me making
> > > > > > the request and google sending the response). The problem is I want to make
> > > > > > that to connections, not sessions.
> > > > > >
> > > > > > If it was sessions I can use the 'flag' keyword. Now I'm seeing if the
> > > > > > way is using preprocessors, in this case the HTTP preprocessor.
> > > > > >
> > > > > > Can you help me?
> > > > > >
> > > > > > Best Regards,
> > > > > >
> > > > > > --
> > > > > > Ulisses Costa - http://caos.di.uminho.pt/~ulisses/<http://caos.di.uminho.pt/%7Eulisses/>
> > > > > >
> > > > > >
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> > > > > --
> > > > > joel esler | Sourcefire | gtalk: jesler () sourcefire com | 302-223-5974
> > > > > | http://twitter.com/joelesler
> > > >
> > > >
> > > >
> > > > --
> > > > Ulisses Costa - http://caos.di.uminho.pt/~ulisses/<http://caos.di.uminho.pt/%7Eulisses/>
> > > >
> > > >
> > > > ------------------------------------------------------------------------------
> > > > Stay on top of everything new and different, both inside and
> > > > around Java (TM) technology - register by April 22, and save
> > > > $200 on the JavaOne (SM) conference, June 2-5, 2009, San Francisco.
> > > > 300 plus technical and hands-on sessions. Register today.
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> >
> >
> > --
> > Ulisses Costa - http://caos.di.uminho.pt/~ulisses/<http://caos.di.uminho.pt/%7Eulisses/>
>
>
>
> --
> joel esler | Sourcefire | gtalk: jesler () sourcefire com | 302-223-5974 |
> http://twitter.com/joelesler



-- 
Ulisses Costa - http://caos.di.uminho.pt/~ulisses/

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