Re: Quick Kuluoz sig

[Joel Esler <jesler () sourcefire com>]

Thanks James!

--
Joel Esler

On Aug 31, 2012, at 7:01 PM, James Lay <jlay () slave-tothe-box net> wrote:

> Got 3 minutes before I'm out for a three day ;)  Tired of searching for 
> these in email pcaps, so here's the rule:
>
> alert tcp $EXTERNAL_NET any -> $HOME_NET 25 (msg:"SPECIFIC-THREATS 
> Possible Kuluoz spamvertised URL in email"; flow:to_server,established; 
> content:"href=|22|http|3a 2f 2f|"; content:".htm|22|"; distance:0; 
> within:50; pcre:"/\x2f[A-Z]{10}\.htm\x22/ms"; metadata:policy 
> balanced-ips drop, policy security-ips drop, service smtp; 
> classtype:trojan-activity; 
> reference:url,http://blog.webroot.com/2012/08/31/cybercriminals-impersonate-ups-serve-malware; 
> sid:10000021; rev:1;)
>
> Your mileage may vary...stacked up well in my testing.  Have a good 
> three day (for those in the USA) weekend all!!
>
> James
>
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Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
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