Published Oct 30, 2016 | Updated Sep 15, 2017

Worm:Win32/Fadok.A

Severe |Detected with Windows Defender Antivirus

Aliases: Trojan-FHDX!903FD961B8B9 (McAfee) SMG.Heur!gen (Symantec)

Summary

Windows Defender Antivirus detects and removes this worm.

Worms automatically spread to other PCs. They can do this in a number of ways, including by copying themselves to removable drives, network folders, or spreading through email.

Find out ways that malware can get on your PC.

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.

Disable Autorun

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

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

If you’re using Windows XP, see our Windows XP end of support page.

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