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Microsoft Security Intelligence
Published Jun 04, 2014 | Updated Sep 15, 2017


Detected by Microsoft Defender Antivirus

Aliases: No associated aliases


Microsoft security software detects and removes this family of threats.

This family of threats can allow backdoor access, download files, and use your PC and Internet connection for click fraud and bitcoin and Litecoin mining.

Some Sefnit versions can monitor Internet Explorer or Mozilla Firefox to hijack search results when you use search engines such as Bing, Yahoo!, and Google.

They can be downloaded by other malware, or bundled with other software and downloaded through peer-to-peer file sharing networks.

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 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

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