Research the latest threats to your computer

Microsoft Malware Protection Center

The Microsoft Malware Protection Center (MMPC) portal is an interactive Web portal designed to help you research the latest threats to your computer security and find out how you can respond to them. This portal is one way that the MMPC shares results of its research and response to current malware threats with customers.

The MMPC includes the following:

A Malware Encyclopedia

A method to submit a sample for testing

Up-to-date antispyware signatures for Windows Defender

Information about top threats and potentially unwanted software determined by customers who report them to the MMPC and by information obtained from Microsoft security products such as the Malicious Software Removal Tool (MSRT) Windows Defender, and Windows Live OneCare

Tools and resources such as the Microsoft Security Intelligence Report

Malware Encyclopedia

Research a particular virus or other threat by searching or browsing our encyclopedia. Threat results include:

Alternate names for the malware

A detailed summary

Symptoms

Technical information

Prevention techniques

Recovery steps

Malware Analysis in the Microsoft Malware Protection Center

Submit a sample

Upload files that you suspect might be infected with malicious or unwanted software. We'll analyze the files. Submit your e-mail address and we'll send you the analysis results.

Antivirus and antispyware signatures

Malicious software is constantly changing. Visit the Malware Protection Center to get one-click access to the latest definitions for:

Windows Live OneCare

Windows Defender

Microsoft Forefront Client Security

Note: You can also configure these products to update automatically.

Information about top threats and potentially unwanted software that you report

Get updated information in the top ten categories as reported by users. Each threat is linked to more details.

Top desktop threats

Top MSRT detections

Most active e-mail threats

Top adware/spyware

Tools and resources

Find a collection of tools and resources including malicious software scanning tools, blogs, and a link to the most recent Microsoft Security Intelligence Report.