VRT Advisories


VRT Rules 2009-02-03

Sourcefire VRT Rules Update

Date: 2009-02-03

Synopsis:

As a result of ongoing research, the Sourcefire VRT has added multiple rules to the web-activex, specific-threats and chat rule sets to provide coverage for emerging threats from these technologies.

Details:

As a result of ongoing research, the Sourcefire VRT has added multiple rules to the web-activex, specific-threats and chat rule sets to provide coverage for emerging threats from these technologies.

Microsoft Security Advisory MS08-067:
After continued research into a vulnerability affecting the Microsoft implementation of DCE/RPC, the Sourcefire VRT has made improvements to the rules that detect attacks targeting this vulnerability in order to enhance performance.

The updated rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3, SIDs 14773 through 14985.

Rule Pack Summary:

For a complete list of new and modified rules, click here.

Warning:

Sourcefire VRT rule packs often utilize enhancements made to Snort. Operators should upgrade to the latest revision or patch level for Snort to ensure these enhancements are available before using these rules.

About the VRT:

The Sourcefire VRT is a group of leading edge intrusion detection and prevention experts working to proactively discover, assess and respond to the latest trends in hacking activity, intrusion attempts and vulnerabilities. This team is also supported by the vast resources of the open source Snort community, making it the largest group dedicated to advances in the network security industry.