Microsoft Malware Protection Center

Threat Research & Response Blog

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  • Blog Post: My Sweet Valentine - the CIFS Browser Protocol Heap Corruption Vulnerability

    On Valentine's Day, an anonymous researcher announced a previously undisclosed SMB (Server Message Block) vulnerability affecting the CIFS (Common Internet File System) browser service. Along with the vulnerability, the researcher also posted Proof-of-Concept (PoC) exploit code showing exactly how to...
  • Blog Post: Facebook offers Microsoft Security Essentials as a security solution

    We’re very excited to announce that Microsoft has teamed up with Facebook to offer Windows users free malware protection with Microsoft Security Essentials. Since May 1st, Facebook users have had the choice of downloading and installing Microsoft Security Essentials as their security solution....
  • Blog Post: MMPC Threat Report: Cracking open Qakbot

    Today, we’re releasing a Microsoft Malware Protection Center Threat Report on Qakbot as a follow-up to the recently-released Microsoft SIRv10 and our special report on Battling Botnets in late 2010.  This report focuses on one botnet in particular, Qakbot . Qakbot is a backdoor that includes user...
  • Blog Post: Operation b107 - Rustock Botnet Takedown

    Just over one year ago, Microsoft- with industry and academic partners- utilized a novel combination of legal and technical actions to take control of the Win32/Waledac botnet as the first action in Project MARS (Microsoft Active Response for Security).   Today, a similar action has had its legal...
  • Blog Post: We've got our eye on Eyestye

    Back in October 2011, we began to remove Eyestye variants using the Malicious Software Removal Tool (MSRT) in an effort to prevent the proliferation of this botnet. Today, we published a detailed MMPC Threat Report on this family. The report provides an in-depth analysis of how Win32/EyeStye works and...
  • Blog Post: Newly updated MMPC whitepapers now available

    Would you like to know more about the MMPC, and how we protect computer users worldwide? We have released new versions of two whitepapers which describe how the MMPC operates, and provide an introduction to the antimalware technologies that the MMPC supports. The two new papers are: - Malware Research...
  • Blog Post: The MMPC on Facebook and Twitter

    Late last week, the MMPC officially launched its Facebook page and its Twitter account . From this Welcome page, you can read our latest blog posts, see our latest Twitter feeds, and find out what threats most affect your desktop. You can also download the latest Security Intelligence Report...