Cisco Talos Blog

March 17, 2009 16:06

Rule release for today - March 17th 2009

We've been busy updating some rules and adding extras, lots of changes to a lot of rules. Mostly a maintenance release with some new scada rules. The scada rule set now includes support for OMRON FINS. Additionally, multiple rules in the specific-threats and content-replace

March 10, 2009 14:04

Microsoft Tuesday Coverage for March MS09-006, MS09-008

Microsoft Security Bulletin MS09-006: A programming error in the Microsoft Windows kernel may allow a remote attacker to execute code with system level privileges. This may be exploited when specially crafted EMF files are viewed using Microsoft Internet Explorer. A rule to dete

March 3, 2009 16:54

Rule release for today - March 3rd 2009

Specific threats, ActiveX and web-client have new rules. Major rule updates to other, older rules. Details: http://www.snort.org/vrt/advisories/vrt-rules-2009-03-03.html

February 27, 2009 15:02

Rule release for today - February 27th 2009

We've been busy again... Microsoft Excel Code Execution (CVE-2009-0238): Microsoft Excel contains a programming error that may allow a remote attacker to execute code on a vulnerable system. The problem occurs when Excel attempts to process a specially crafted document with

February 25, 2009 14:48

Conficker variant B - Still detected

As with all malware, variants eventually float to the surface of the threat landscape. Conficker is no different. The latest variant imaginatively named Conficker B, still uses the same propagation methods the original used. That is, it still attempts to exploit the vulnerability

February 20, 2009 19:44

Adobe Acrobat and Reader Buffer Overflow Snort Rules

As promised earlier this evening we are releasing rules to detect attacks targeting this vulnerability. More rule details are available at http://www.snort.org/vrt/advisories/vrt-rules-2009-02-20.html Ur welcom.

February 13, 2009 14:28

Dcerpc2 Ruleset Now Available

Now that the Snort 2.8.4 RC-1 has been released, we at the VRT have been busy putting together a special rules file for use with this version of Snort and the new dcerpc pre-processor. We would like your assistance in testing this ruleset, the new version of Snort and the dcerpc

February 10, 2009 14:53

Microsoft Tuesday Coverage for February MS09-002, MS09-003, MS09-004, MS09-005

Four Microsoft Advisories to cover this month, fortunately, one of them was released in December so that left three... Microsoft Security Advisory MS09-002: Microsoft Internet Explorer contains programming errors that may allow a remote attacker to execute code on a vulnerable s

February 6, 2009 17:31

Important Snort rule changes and the new dcerpc preprocessor

In the very near future, the release of Snort 2.8.4 is going to bring about some major changes to the way that NetBIOS traffic is handled. This is because of the new dcerpc preprocessor. This preprocessor handles all the decoding functions that were previously taken care of usin