VRT Advisories

VRT Rules 2009-01-13

Sourcefire VRT Rules Update

Date: 2009-01-13


The Sourcefire VRT is aware of vulnerabilities affecting Microsoft products.


Microsoft Security Advisory MS09-001:
The Microsoft implementation of the Server Message Block (SMB) protocol contains programming errors that may allow a remote attacker to execute code on a vulnerable system. These issues do not require authentication for exploitation to occur.

Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 3 and SIDs 15196 through 15227.

Rule Pack Summary:

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


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.