Snort mailing list archives
Rotating iframes
From: James Lay <jlay () slave-tothe-box net>
Date: Mon, 13 May 2013 11:45:42 -0600
I'm not even sure what to call this: alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"INDICATOR-COMPROMISE Rotating iframe redirect"; flow:to_server,established; content:"GET"; http_method; pcre:"/\x02l[a-z]{4,16}\x3ff[a-z]{4,16}=[0-7]{7}/m"; metadata:policy balanced-ips drop, policy security-ips drop, service http; reference:url,http://blog.unmaskparasites.com/2013/05/11/rotating-iframe-urls-one-a-minute/; classtype:bad-unknown; sid:10000056; rev:1) Is that pcre too expensive? James ------------------------------------------------------------------------------ AlienVault Unified Security Management (USM) platform delivers complete security visibility with the essential security capabilities. Easily and efficiently configure, manage, and operate all of your security controls from a single console and one unified framework. Download a free trial. http://p.sf.net/sfu/alienvault_d2d _______________________________________________ Snort-sigs mailing list Snort-sigs () lists sourceforge net https://lists.sourceforge.net/lists/listinfo/snort-sigs http://www.snort.org Please visit http://blog.snort.org for the latest news about Snort!
Current thread:
- Rotating iframes James Lay (May 13)