Trojan:JS/Medfos.C
Windows Defender Antivirus detects and removes this threat.
This threat can redirect your search engine queries when you use the Mozilla Firefox web browser.
It can be installed by Trojan:Win32/Medfos.B.
Trojan:JS/Medfos.B
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.
Trojan:JS/Medfos.A
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.
JS/Miuref
Windows Defender detects and removes this threat.
This family of threats are malicious JavaScript files that redirect your web browser to show you ads or download other malware.
They can be installed by other malware, including members of the Win32/Fareit family, or installed on your PC from a spam email attachment.
The Win32/Miuref family description has for more information.
Win32/Necurs
Microsoft security software detects and removes this family of threats.
This family of malware work together to download other malware, including threats from the Win32/Sirefef and Win32/Medfos families. They can also give a malicious hacker backdoor access and control of your PC.
These threats can be installed at the same time as rogue security software, such as Rogue:Win32/Winwebsec.
We have seen the Necurs family being installed by variants of the Blacole family, the Win32/Beebone family, the Win32/Zbot family, and the Win32/Dorkbot family.
Trojan:Win32/Necurs
Microsoft security software detects and removes this family of threats.
This family of malware work together to download other malware, including threats from the Win32/Sirefef and Win32/Medfos families. They can also give a malicious hacker backdoor access and control of your PC.
These threats can be installed at the same time as rogue security software, such as Rogue:Win32/Winwebsec. We have also seen them installed by variants of the Blacole family, the Win32/Beebone family, the Win32/Zbot family, and the Win32/Dorkbot family.