VRT Advisories

VRT Rules 2006-07-28

Sourcefire VRT Update

Date: 2006-07-28


The Sourcefire VRT has added multiple rules to detect the use of Spyware and potentially unwanted technology on a network.


As a result of continuing research in the field of Spyware and potentially unwanted technology, the Sourcefire VRT has added multiple rules to the Spyware and Backdoor rule sets.

Each rule is also accompanied by detailed documentation for each Spyware, trojan and potentially unwanted software to assist in determining the likelihood of infection and has relevant links to information regarding their removal.

This rule pack also contains a module for the detection of the Japanese peer-to-peer application "Winny".

The module is identified with gid 3 and sid 7019.

For instructions on how to use this module, refer to the Snort manual section regarding "Shared Object Rules".

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.