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This threat is classified as a worm that spreads over the network. A pure network worm propagates without any user interaction, such as, without requiring the user to open any file or take any action. Generally, a network worm spreads by an exploit of vulnerable software. This threat is detected by the Microsoft antivirus engine. Technical details are not currently available.
Use the following free Microsoft software to detect and remove this threat:
- Windows Defender Antivirus for Windows 8.1 and Windows 10, or Microsoft Security Essentials for Windows 7 and Windows Vista
- Microsoft Safety Scanner
You should also run a full scan. A full scan might find hidden malware.
This threat tries to use the Windows Autorun function to spread through removable drives, like USB flash drives. You can disable Autorun to prevent worms from spreading:
Scan removable drives
Remember to scan any removable or portable drives. If you have Microsoft security software, see this topic on our software help page:
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 Windows Defender for Windows 10.
Go to All settings > Update & security > Windows Defender and make sure that your Cloud-based Protection settings is turned On.
Get more help
If you’re using Windows XP, see our Windows XP end of support page.