Large Kovter digitally-signed malvertising campaign and MSRT cleanup release

Kovter is a malware family that is well known for being tricky to detect and remove because of its file-less design after infection. Users from United States are nearly exclusively being targeted, and infected PCs are used to perform click-fraud and install additional malware on your machine. Starting April 21, 2016, we observed a large…

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Cleaning up misleading advertisements

The Microsoft Malware Protection Center is committed to protecting our customers and their Windows experience. We use our evaluation criteria to determine if a program should be detected by our security products. As the software ecosystem evolves, so does our evaluation criteria. We are currently updating our evaluation criteria to address new technology changes, industry trends,…

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