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Microsoft Security Intelligence
Published Jul 06, 2008 | Updated Sep 15, 2017


Detected by Microsoft Defender Antivirus

Aliases: No associated aliases


Windows Defender Antivirus detects and removes this threat.
Win32/Horst is a collection of discrete trojan components that perform various tasks. The initial downloading component may be distributed passively via the eMule/eDonkey peer to peer network. The initial downloading component downloads and installs a second downloader component. This second downloader is responsible for installing the various other functional components of the Horst family. Many of the Horst components are designed to send spam.

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.

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.

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