Microsoft Malware Protection Center

Threat Research & Response Blog

October, 2009

  • MSRT October Release – Case Study

    As of October 21st, the MSRT has removed the newly added threat, Win32/FakeScanti from 56,700 infected machines. For this month, it was the 12th most prevalent threat family worldwide and 7th in the US. Overall the MSRT has cleaned 2,516,235 machines this month from all kinds of malware infections. We all know the threat landscape is not homogenous across geographic regions. Let’s take a look at US, China, and Brazil as a case study. United States China Brazil ...

    As we’ve mentioned before, your average user is the most at risk of getting infected these days. So, with the release of Microsoft Security Essentials recently en masse, we’re really able to see some of the fruits of our labour over the last few years. We’re very pleased to see such a positive response to MSE, with many new home users giving it a try, which as you can imagine, makes us all happy little Vegemites *. As you might expect, we see pretty different infection types from home-users versus...
  • Microsoft Security Essentials – Week One

    Now that Microsoft Security Essentials is generally available to consumers in 19 countries, we've had a chance to go over the data, and there are some very interesting results. Just in the first week we saw well over 1.5 million downloads of Microsoft Security Essentials, but the price (free to Windows users) is hard to beat! Computers reporting detections up to October 6: almost four million detections on 535,752 distinct machines. The detections are eight times the machine count because many...
  • Scanti-ly Clad - Another Rogue Stripped by MSRT

    Anyone who’s seen a system infected by a rogue security program doesn’t need to be told how annoying they can be, as they attempt to scare, threaten, cajole, hector, harangue, pester, aggravate, intimidate, badger, harass and generally nag* the user into paying to register the fake software. And even among rogues, there are few that are quite as annoying as Win32/FakeScanti , which is this month’s addition to the Malicious Software Removal Tool (MSRT). *I realize I’m being more than a little repetitive...
  • Where in the world is the MMPC

    Based on the interest we saw in the various presentations our team did at Virus Bulletin in Geneva a couple of weeks back we thought you might be interested in where else we will be presenting in the coming weeks. October 13 Vinny Gullotto will be in a panel discussion in Washington D.C. at the Emerging Threats, Vulnerabilities, & Challenges in the Cybersecurity Ecosystem event put on by TechAmerica. You can find information on how to register for this event at
  • National CyberSecurity Awareness Month

    Today marks the beginning of National CyberSecurity Awareness Month here in the United States. I would like to take this opportunity to acknowledge all the security professionals around the world who work tirelessly to make cyberspace a safer place for all our online pasttimes. You know who you are. It's nice to know we all work for the same team. Jimmy Kuo PS. I'm glad to see still going strong.