Re: Can Zeek be installed as in-line IPS?

James Lay <[email protected]>
Newsgroups gmane.comp.security.detection.bro
Message-ID <[email protected]>
On 2019-03-18 11:02, Seth Hall wrote:
> On 18 Mar 2019, at 11:30, Patrick Kelley wrote:
> 
>> I still see the same issues we had on networks 10 years ago. It is
>> reduced, due to HTTPS and some SMTP, sure.  Dead... not really. 
> 
> To be fair, he did say IPS.  In my opinion IPS has always been in a
> weird spot where the definition isn't terribly clear (block a single
> packet in-flight?  block a connection after a determination is made?
> ...etc).
> 
> I think everyone here will agree that the visibility provided by Zeek 
> is
> useful even on modern networks and that tail of completely unencrypted
> traffic is awfully long. :)
> 
>    .Seth
> 
> --
> Seth Hall * Corelight, Inc * www.corelight.com
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Concur.  Zeek on the perimeter is great for metadata about encrypted 
sessions.  Zeek internally from client/server or Windows Client/Windows 
Domain Controller will open your eyes to a LOT of traffic you may not 
have expected.

James
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