Worm:Win32/Gamarue.O

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

• Microsoft Defender Antivirus for Windows 10 and Windows 8.1, or Microsoft Security Essentials for Windows 7 and Windows Vista
• Microsoft Safety Scanner
• Microsoft Windows Malicious Software Removal Tool

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

Protect your sensitive information

This threat tries to steal your sensitive and confidential information. If you think your information has been stolen, see:

• What to do if you are a victim of fraud

You should change your passwords after you've removed this threat:

• Create strong passwords

Additional remediation instructions for this threat

This threat might make lasting changes to your PC's settings that won't be restored when it's cleaned. The following links can help change these settings back to what you want:

• Restore my system registry:
• Read Recovery options in Windows 10
• For Windows 7
• For Windows Vista
• For other support and help related articles, go to:
• Windows 10
• Windows 8.1
• Windows 7
• Windows Vista
• Microsoft Security TechNet Center

Disable Autorun

This threat tries to use the Windows Autorun function to spread via removable drives, like USB flash drives. You can disable Autorun to prevent worms from spreading:

• Disable Windows Autorun

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:

• How do I scan a removable drive, like a USB flash drive?

Get more help

You can also visit our advanced troubleshooting page 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.