We're gradually updating threat actor names in our reports to align with the new weather-themed taxonomy. Learn about Microsoft threat actor names
Trojan:JS/Medfos.A
Aliases: JS/Redirector.NIQ trojan (ESET) Trojan.JS.Medfos (Ikarus)
Summary
Trojan:JS/Medfos.A is a malicious JavaScript that redirects search queries when you use search engines. It is installed as a malicious Mozilla Firefox extension.
To detect and remove this threat and other malicious software that may be installed on your computer, run a full-system scan with an appropriate, up-to-date, security solution. The following Microsoft products detect and remove this threat:
- Microsoft Security Essentials or, for Windows 8, Windows Defender
- Microsoft Safety Scanner
You can also remove the malicious add-on by following these instructions from Mozilla.
