Published Sep 17, 2014 | Updated Sep 15, 2017


Severe |Detected with Windows Defender Antivirus

Aliases: W32/Backdoor.TMVB-3320 (Command) Trojan-Downloader.MSIL.Fbck.o (Kaspersky) winpe/Suspicious_Gen4.GTDCF (Norman) TR/Dldr.Kivat.A.1 (Avira) Trojan.GenericKD.1754858 (BitDefender) Trojan.PWS.Stealer.13082 (Dr.Web) MSIL/ExtenBro.B trojan (ESET) Trojan.MSIL.ExtenBro (Ikarus) Downloader.MSIL.OGD (AVG) RDN/Generic Downloader.x!kt (McAfee)


Microsoft security software detects and removes this family of threats.

These threats can download and install Chrome browser extensions without your consent. These extensions can gain access to your social networking profiles. They can also stop you from viewing some websites, such as those related to antimalware security products.

They can be installed on your PC via a malicious attachment to a spam email.

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. 

Remove browser add-ons

You may need to remove add-ons from your browser:

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.

Follow us