Yesterday we released this month's update of the Windows Malicious Software Removal Tool . This update includes three new malware families: F4IRootkit , Ryknos , and IRCBot . This tool now cleans over 50 of the most prevalent malware families. This...

On Tuesday, the Windows OneCare team announced the availability of the beta of Windows OneCare Live – a comprehensive PC health service for consumers, which offers an integrated approach to help consumers more easily protect and care for their computers...

Hi, Matthew Braverman here again. In early October, members of Microsoft's anti-malware team attended the 2005 Virus Bulletin Conference in Dublin, Ireland . This is one of the top three annual antivirus industry conferences, and was an excellent opportunity...

Hi, I'm Sterling Reasor, a program manager for the current Windows AntiSpyware beta and forth-coming Windows Defender. A few days ago we posted an update to the Windows AntiSpyware beta and yesterday, we turned on the auto-updater code to automatically...

Hi, we are Eric Allred and Ziv Mador, response coordinators for the anti-malware technology team. We have analyzed several versions of the rootkit that have been shipped as part of Sony’s XCP software. We are calling the family WinNT/F4IRootkit. We...