[Snort-users] Grouping connections

Ulisses Araújo Costa ulissesaraujocosta at ...11827...
Fri Apr 24 14:22:07 EDT 2009


I want identify connection not sessions. I want more detail: connections...

2009/4/24 Joel Esler <jesler at ...1935...>

> A session is made up of connections.  Now I am throughly confused about
> what you are asking for.
> J
>
> 2009/4/24 Ulisses Araújo Costa <ulissesaraujocosta at ...11827...>
>
> Joel Esler, with 'tag:session' I just can identify the session. I want be
>> able to identify connections.
>>
>> 2009/4/23 Joel Esler <jesler at ...1935...>
>>
>> The fact that the alert took place tells you that flow X <> Y happened.
>>>
>>> J
>>>
>>> 2009/4/22 Ulisses Araújo Costa <ulissesaraujocosta at ...11827...>
>>>
>>>> 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 at ...14165...>
>>>>
>>>> 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 at ...11827...>
>>>>>
>>>>>> 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 at ...1935...>
>>>>>>
>>>>>>> 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 at ...11827...>
>>>>>>>
>>>>>>>>  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 at ...1935... |
>>>>>>> 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.
>>>>>> Use priority code J9JMT32. http://p.sf.net/sfu/p
>>>>>> _______________________________________________
>>>>>> Snort-users mailing list
>>>>>> Snort-users at lists.sourceforge.net
>>>>>> Go to this URL to change user options or unsubscribe:
>>>>>> https://lists.sourceforge.net/lists/listinfo/snort-users
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>>>>>> http://www.geocrawler.com/redir-sf.php3?list=snort-users
>>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Ulisses Costa - http://caos.di.uminho.pt/~ulisses/<http://caos.di.uminho.pt/%7Eulisses/>
>>>>
>>>
>>>
>>>
>>> --
>>> joel esler | Sourcefire | gtalk: jesler at ...1935... | 302-223-5974 |
>>> http://twitter.com/joelesler
>>>
>>
>>
>>
>> --
>> Ulisses Costa - http://caos.di.uminho.pt/~ulisses/<http://caos.di.uminho.pt/%7Eulisses/>
>>
>
>
>
> --
> joel esler | Sourcefire | gtalk: jesler at ...1935... | 302-223-5974 |
> http://twitter.com/joelesler
>



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