Re: filter http traffic

[Joel Esler <jesler () sourcefire com>]

Yes, it is possible. I suggest capturing a packet flow of you doing the search, then you should be able to see the 
structure of the query much better. 

-- 
Joel Esler

On May 19, 2012, at 9:26 AM, Sdflkaj Jksdfj <kenterer1 () ymail com> wrote:

> Hey there,
>
> i want to filter search requests to e.g. google which have certain keywords.
>
> my suggestion is the following:
>
>  alert tcp any any -> any any (pcre: "/(keyword1|keyword2)*/"; msg: "someone searches for rootkit or malware in 
> google bing or yahooo"; sid: 1000004;rev:1;) 
>
>  Since i want to be able to use regular expressions i use PCRE. However this line only gives alarm if i use the "url 
> bar" of the browser to search for   keywords. if i visit google.com and type the keywords in the input box, there is 
> no alarm  going of . : / 
>
> i would appreciate any inspiration.
>
> cheers
> kenterer
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Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
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threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/

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