In VRT's rule release:
The Sourcefire VRT has added and modified multiple rules in the
backdoor, blacklist, botnet-cnc, exploit, oracle, policy,
specific-threats, web-activex and web-misc rule sets to provide
coverage for emerging threats from these technologies.
In order to subscribe now to the VRT's newest rule detection functionality, you can subscribe for as low as $29 US dollars a year for personal users, be sure and see our business pricing as well at http://www.snort.org/store. Make sure and stay up to date to catch the most emerging threats!