Aliases: FakeAlert-CQ (McAfee) Extra Antivirus (other) Ultra Antivirus 2009 (other) Malware Catcher 2009 (other) Virus Melt (other) Windows PC Defender (other) Live PC Care (other) Security Antivirus (other) Cleanup Antivirus (other) My Security Wall (other) Security Guard (other) My Security Engine (other) Paladin Antivirus (other) Security Master AV (other) My Security Shield (other) Smart Engine (other) Best Malware Protection (other) Home Safety Essentials (other)
Use the following free Microsoft software to detect and remove this threat:
- Windows 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 other, hidden malware.
Reset the Hosts file
This threat might change the contents of your Hosts file. You can reset it to the default:
Get more help
If you’re using Windows XP, see our Windows XP end of support page.