[Discussion] Capture Clients?

[Jaime Blasco]

Hi,

We have been discussing some months ago to incorporate the funcionality of
record traffic from the ossim agents when the server trigger the active
response, it will be easy to implement with the actual arquitecture and it
could help a lot to identify real attacks and make forensic analysis.

Regards

2009/4/3 Martin Holste <mcholste at gmail.com>

> I agree that client-side integration seems to becoming more and more
> important as more Trojans go SSL-enabled.  However, I think that's more the
> realm of OSSEC, which plugs into OSSIM.  So, if the OISF incarnation can
> play nicely with OSSIM, I think that it would be fairly simple to write
> OSSIM directives that would accomplish what you're talking about by
> directing OSSEC clients to begin recording/analyzing.  Personally, I'd want
> them to all to be able to grep through their RAM for given strings ala
> MindSniffer if there was something new to look for.  I think you're raising
> a good point though, that HIDS can play a real part in this if we let it.
>
> --Martin
>
>
> On Fri, Apr 3, 2009 at 2:00 PM, Matt Jonkman <jonkman at jonkmans.com> wrote:
>
>> So you mean for instance in the event of an https ddos? Or some form of
>> encrypted session.
>>
>> Have the client grab it after decryption and save to be analyzed?
>>
>> Matt
>>
>> Kevin Ross wrote:
>> > Hi I was thinking, imagine if an intrusion was detected between a
>> > maclicious host, say 81.1.1.1 and the victim 10.0.0.2 with the
>> > Distributed IDS in between. What if an attack was underway there was
>> > agents available for clients/servers which then the distributed IDS
>> > could use to capture activity? i.e network activity etc between it and
>> > the compromised host. Ie say there was an attack, the distributed IDS
>> > master sensor will "say" to the agent on 10.0.0.2 "record all
>> > communications you have with 81.1.1.1 and then forward it to me".
>> >
>> > This way greater visibility is given into the attack providing greater
>> > forensic information. especially if encyrption is then used to hide
>> > attack responses, backdoors, whatver. The agent perhaps could then be
>> > used in some sort of active response on the client but ideally just a
>> > small capture agent. This would give more attack information,
>> > confirmation if the attack was successful.
>> >
>> >
>> > ------------------------------------------------------------------------
>> >
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>>
>> --
>> --------------------------------------------
>> Matthew Jonkman
>> Emerging Threats
>> Phone 765-429-0398
>> Fax 312-264-0205
>> http://www.emergingthreats.net
>> --------------------------------------------
>>
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>>
>>
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>
>
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>


-- 
_______________________________

Jaime Blasco

www.ossim.com
www.alienvault.com
Email: jaime.blasco at alienvault.com
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