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Microsoft Security Intelligence

Microsoft Security Intelligence

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Published Dec 22, 2009 | Updated Sep 15, 2017

Learn about other threats

Trojan:Win32/Killav.DR

Detected by Microsoft Defender Antivirus

Aliases: Trojan.Win32.AntiAV.dsg (Kaspersky) Trj/AntiAV.O (Panda)

Summary

Windows Defender Antivirus detects and removes this threat.

This threat tries to uninstall your security software and firewall.

It can be installed by other malware, such as TrojanDropper:Win32/Pykspa.

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

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

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.