Re: Thresholding by source AND destination

[Joel Esler <jesler () sourcefire com>]

Try writing a pass rule for the two hosts.


On Mon, Aug 5, 2013 at 2:38 PM, Turnbough, Bradley E. <bturnbough () belcan com
> wrote:

> Hello,
>
> A kind person sent me information last week regarding a solution to allow
> me to disregard events when from a certain source to a certain destination.
>  Can someone please give me a better idea how to do this?
>
> For example:
>
> I have a source DNS server IP address of 1.2.3.4 and a destintation DNS
> server of 5.6.7.8
>
> This alert is being generated:
>
> INDICATOR-COMPROMISE Suspicious .cn dns query
>
> BUT.... This is for a domain that I know is a legit domain.
>
> dns.abc.cn
>
>
> So, I want to exclude (threshold / not alert) suspicious CN domain
> resolution requests when coming from 1.2.3.4 and going to 5.6.7.8 for a DNS
> request of dns.abc.cn
>
> Hopefully I explained myself well enough.
>
> Thanks,
>
> Brad
>
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-- 
Joel Esler
Senior Research Engineer, VRT
OpenSource Community Manager
Sourcefire

------------------------------------------------------------------------------
Get your SQL database under version control now!
Version control is standard for application code, but databases havent 
caught up. So what steps can you take to put your SQL databases under 
version control? Why should you start doing it? Read more to find out.
http://pubads.g.doubleclick.net/gampad/clk?id=49501711&iu=/4140/ostg.clktrk

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