Trojan JS/Medfos.b is detected as a malicious program that antivirus softwares are unable to block. This backdoor Trojan attacks and gets rooted in a computer with the help of a remote operation performed by a hacker. The malware stays background/hidden and then infects system key application. Once it has completed its installation and execution, it will inject itself to other legit system files. Thus the computer user will be introduced to new infections. Trojan JS.medfos.b has many other clones like medfos.a and Trojan:Win32/Medfos.gen!A. These trojan infections will make your system run really slow. Computer might become unable to login to windows as it takes ages to load. And if luckily system has logged into windows, antivirus failure and virus infection notices will pop up immediately to scare you. It may disable access to internet, change the homepage to unwanted website. Hacker can easily access the system now using his secret paths. You might be thinking why did your anti-virus not remove this infection? It is because the hacker can change your antivirus settings once he has successfully landed on system. It is recommended to immediately remove Trojan JS/medfos and its clones from infected PC.
How to remove Trojan JS/Medfos.b and medfos.a manually:
To remove this virus manually, complete the following set of tasks. Do not forget to create a backup before getting started to the manual removal guide.
Stop Trojan JS/Medfos.a malicious process:
Delete Trojan win32 JS Medfos files:
%AllUsersProfile%\Application Data\ Trojan:JS/Medfos.B
Remove Trojan JS/Medfos.a registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\ [
To remove this virus Automatically, We suggest following tools: