Re: Alerting in near-real-time

[David.Ryan () Quintiles com]

Paul/Bamm,

Thanks for the details.  I'm working through the documentation and 
*trying* my best to understand the model used.

Right now I am trying to work out what needs to be where in my 
'distributed' model - I have a central mysql server which can receive 
logs/alerts from a small number of snort probes.

I have added the sguil database to the mysql server.

I am shortly going to try getting the probes to log unified outout to the 
sguil database.  Does this mean that I no longer need to log to the snort 
database, or is this still required for other things like snortreport and 
base.  Or do I just repoint the base config at the sguil database ?

Thanks,

David
=================================
David Ryan
IT Security Engineer, Global IT Security
Quintiles, Global IT - Infrastructure, QDUB

david.ryan () quintiles com
v:  +353-1-819-5186, GMT+0
m: +353-87-124-9108
=================================



"Paul Halliday" <paul.halliday () gmail com> 
11/05/2007 12:31

To
"David.Ryan () quintiles com" <David.Ryan () quintiles com>
cc
snort-users () lists sourceforge net
Subject
Re: [Snort-users] Alerting in near-real-time






David,

You can easily be up and running in under ten minutes. As Bamm said, Sguil 
will do most of the work for you on startup. 

All you need to do is modify the configuration scripts to suit your 
environment. See the install docs. 

As for p0f, thats a quick install.

I wouldn't worry about SANCP for now (you will see reference to it in the 
config files) you can easily add that functionality after you have seen 
what Sguil has to offer. 

If you have any problems you can get free premium support from the author 
himself. Just visit #snort-gui on irc.freenode.net and ask for Bamm

;)

On 5/10/07, David.Ryan () quintiles com <David.Ryan () quintiles com> wrote:

Paul, 

Thanks for the reply.  I have looked at sguil (following your post) and I 
think it may cover what I am looking for, but the install documentation 
indicates relations to lots of other packages such as NSM and p0f and 
includes a lot of detail on setting up the snort install, logging to what 
looks like another database (i.e. a sguil database rather than the initial 
snort one which is included in the snort documentation). 

I don't mind re-installing snort from scratch if necessary, but I'm trying 
towork forward from an existing snort install and add this alerting 
function.  Do you know of any documentation covering adding sguil to an 
existing install, or whether I just need the exisiting database ? 

Thanks, 

David 
=================================
David Ryan
IT Security Engineer, Global IT Security
Quintiles, Global IT - Infrastructure, QDUB

david.ryan () quintiles com
v:  +353-1-819-5186, GMT+0
m: +353-87-124-9108
================================= 


"Paul Halliday" <paul.halliday () gmail com> 
10/05/2007 16:48 


To
"David.Ryan () quintiles com" <David.Ryan () quintiles com> 
cc
snort-users () lists sourceforge net 
Subject
Re: [Snort-users] Alerting in near-real-time








http://sguil.sourceforge.net/


On 5/10/07, David.Ryan () quintiles com < David.Ryan () quintiles com> wrote:
> Thanks to all on the list for their help to date.
>
> I am still trying to get my head around something which I still can't
> understand in the overall snort model and I'm hoping someone can set me
> straight on what I'm missing (or what I'm assuming incorrectly).  I may 
have
> asked this to the list before, but I can't find it.  Apologies if I'm 
asking
> the same question again.
>
> What I have got so far . . .  snort sniffs packets, matches those 
packets
> against rules and can log the results via a variety of output plugins to
> various repositories.  It can log directly to a variety of databases, 
but
> from an optimisation point of view it is better to use unified output, 
pass
> that to something like barnyard and have *it* log to the database.  Net
> result is that events are logged in the database.  This appears to be 
the
> end of snorts involvement in the process from what I can see.
>
> With the data now in the database something else needs to process it 
further
> if any value is to come out of the data.  There are various apps such as
> BASE, snortnotify, snortsnarf, etc .. . . which will either summarise 
the
> data and mail it out or else present it via a webpage for analysis.  The
> problem I'm thinking of is that this is fine for trending or where there 
is
> someone looking at the data to review recent traffic, but I don't see 
how
> this can provide any sort of near-real-time alerting.
>
> Say for example I am happy to look through reports every morning at 0900 
to
> see what happened yesterday, but I *really* *really* want to get an SNMP 
or
> SMTP alert when rule # 3423 is triggered or the string "bad stuff" is
> spotted.  What do people use for this type of scenario ?  I understand 
that
> it would probably involve running a query against the database every X
> minutes and acting on the results of the query, but I can't understand 
how
> there aren't a set of apps out there (or at least ones I can find) that 
do
> this type of thing as I would have thought it was a common requirement.
>
> David
> =================================
>  David Ryan
>  IT Security Engineer, Global IT Security
>  Quintiles, Global IT - Infrastructure, QDUB
>
>  david.ryan () quintiles com
>  v:  +353-1-819-5186, GMT+0
>  m: +353-87-124-9108
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