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Published Jan 08, 2015 | Updated Nov 28, 2017

Virus:Win32/Mewsei.B

Detected by Microsoft Defender Antivirus

Aliases: winpe/Troj_Generic.XXUOG (Norman) Gen:Variant.Graftor.169687 (BitDefender) Trojan.KillFiles.19799 (Dr.Web)

Summary

Microsoft security software detects and removes this threat.

This virus can steal your personal information. It can also stop your security software from working.

It can be installed on your PC from an infected network or removable drive, such as a USB flash drive.

Use the following free Microsoft software to detect and remove this threat:

You should also run a full scan. A full scan might find hidden malware.

Be careful when sharing files

Windows has a feature that lets you share files and folders on a network or shared PC. This feature is sometimes abused by malware to spread to other PCs within the network.

You can get more information and tips on how to share files safely from these pages:

You should turn off file sharing until you make sure that all infected PCs have been cleaned of any malware.

Use the following free Microsoft software to detect and remove this threat:

You should also run a full scan. A full scan might find hidden malware.

Use cloud protection

Use cloud protection to help guard against the latest malware threats. It’s turned on by default for Microsoft Security Essentials and Microsoft Defender Antivirus for Windows 10. 

Go to Settings > Update & security > Windows Defender > Windows Defender Security Center > Virus & threat protection and make sure that your Cloud-based Protection settings is turned On.

Get more help

You can also visit our advanced troubleshooting page or search the Microsoft virus and malware community for more help.

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