Skip to main content
Skip to main content
Microsoft Security Intelligence
1 entries found.
Updated on Sep 27, 2012

Windows Defender detects and removes this threat.

Trojan:JS/Medfos.B is a malicious JavaScript file that redirects search queries when you search online using AOL, Ask, Bing, Google or Yahoo.

The trojan is usually installed by Trojan:Win32/Medfos.B as a Google Chrome browser extension called "ChromeUpdateManager 1.0". It is a member of the Win32/Medfos family, a family of trojans that install malicious extensions for Internet browsers and redirect search engine results.

Alert level: severe