Re: Rule to detect search engines

[Borja Luaces <borja.luaces () gmail com>]

Thanks for your time.

Will try with the flowbit.


On Mon, Jul 1, 2013 at 4:32 PM, waldo kitty <wkitty42 () windstream net> wrote:

> On 7/1/2013 07:20, Borja Luaces wrote:
> > Hello all,
> >
> > I am updating some rules to detect phishing sites against our customer
> and I was
> > wondering if someone has created a rule set to "disable" search engine
> impacts.
> > I was firstly thinking about adding to each rule some pcre, one for each
> mayor
> > search engine (google, bing, yahoo,...) but I think this is nonsense.
>
> actually, in your case, that is the way to go...
>
> > As second option I though about creating a white list but I have no
> access to
> > create it, I am only allowed to create rules.
> >
> > Any other idea?
>
> in your phishing rules, set a flowbit... then in your rules to detect if
> it is a
> search engine, unset that flowbit... at the end, one rule to check the
> flowbit... if it is still set, then fire the phishing alert otherwise it
> is a
> search engine and the phishing alert is not fired...
>
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-- 
Borja Luaces Altares
Junior malware analyst (MCSE Security,C|EH & CSSA)
Information Systems Security Officer

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