VRT Advisories


November 2011 Archive

VRT Rules 2011-11-28

Sourcefire VRT Rules Update

Date: 2011-11-28

Synopsis:

This release adds and modifies rules in several categories.

Details:

The Sourcefire VRT has added and modified multiple rules in the backdoor, bad-traffic, botnet-cnc, dns, exploit, file-identify, ftp, icmp, imap, multimedia, netbios, pop3, scada, smtp, specific-threats and web-misc rule sets to provide coverage for emerging threats from these technologies.

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.

why subscribe? || download rules

Posted by on Nov 28, 2011



VRT Rules 2011-11-15

Sourcefire VRT Rules Update

Date: 2011-11-15

Synopsis:

This release adds and modifies rules in several categories.

Details:

The Sourcefire VRT has added and modified multiple rules in the bad-traffic, blacklist, botnet-cnc, chat, dns, dos, exploit, file-identify, misc, oracle, policy, smtp, specific-threats, web-activex and web-misc rule sets to provide coverage for emerging threats from these technologies.

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.

why subscribe? || download rules

Posted by on Nov 15, 2011



VRT Rules 2011-11-10

Sourcefire VRT Rules Update

Date: 2011-11-10

Synopsis:

This release adds and modifies rules in several categories.

Details:

The Sourcefire VRT has added and modified multiple rules in the dns, exploit, file-identify, misc, multimedia, specific-threats and web-misc rule sets to provide coverage for emerging threats from these technologies.

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.

why subscribe? || download rules

Posted by on Nov 10, 2011



VRT Rules 2011-11-08

Sourcefire VRT Rules Update

Date: 2011-11-08

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting hosts using the Microsoft Windows operating system.

Details:

Microsoft Security Advisory MS11-083:
The Microsoft Windows implementation of the TCP/IP networking stack contains a programming error that may allow a remote attacker to execute code or cause a Denial of Service (DoS) on an affected system.

A previously released rule will detect attacks targeting this vulnerability and is included in this release with updated reference information. It is identified with GID 1, SID 19678.

Microsoft Security Advisory MS11-085:
The Microsoft Windows Address Book component contains a programming error that may allow a remote attacker to execute code on an affected system. The problem occurs when the application attempts to process a malicious Windows Address Book Library file.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 1, SIDs 20541 and 20542.

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.

why subscribe? || download rules

Posted by on Nov 08, 2011



VRT Rules 2011-11-07

Sourcefire VRT Rules Update

Date: 2011-11-07

Synopsis:

The Sourcefire VRT is aware of a vulnerability affecting hosts using the Microsoft Windows operating system.

Details:

Microsoft Security Advisory (2639658):
The Microsoft Windows TrueType font parsing engine contains a vulnerability that may allow a remote attacker to execute code on an affected system. A succesful exploitation of this vulnerability may allow the attacker to execute code in kernel mode. This vulnerability is also related to the Duqu malware.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 20539.

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.

why subscribe? || download rules

Posted by on Nov 07, 2011



VRT Rules 2011-11-04

Sourcefire VRT Rules Update

Date: 2011-11-04

Synopsis:

This release adds and modifies rules in several categories.

Details:

The Sourcefire VRT has added and modified multiple rules in the blacklist, botnet-cnc, exploit, file-identify, multimedia, specific-threats, web-client and web-php rule sets to provide coverage for emerging threats from these technologies.

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.

why subscribe? || download rules

Posted by on Nov 04, 2011



VRT Rules 2011-11-02

Sourcefire VRT Rules Update

Date: 2011-11-02

Synopsis:

This release adds and modifies rules in several categories.

Details:

The Sourcefire VRT has added and modified multiple rules in the backdoor, blacklist, chat, deleted, dos, exploit, file-identify, ftp, misc, multimedia, policy, specific-threats, spyware-put, web-activex and web-misc rule sets to provide coverage for emerging threats from these technologies.

This release introduces the file-identify.rules category. The purpose of this category is to standardize the structure of rules that set a flowbit used to identify file downloading activities. A new port variable, FILE_DATA_PORTS, accompanies this category and contains a ports list used by these rules to identify the download of file types.

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.

why subscribe? || download rules

Posted by on Nov 02, 2011