Permanently Remove Trojan:Win32/Sirefef.K Virus (Trojan Win32 Sirefef K Manual Removal Guide)

Is your computer suffering from Trojan:Win32/Sirefef.K virus? Don’t know how to delete it and even your antivirus software can’t remove it successfully? Follow the instructions here to do the manual removal by yourself.


Trojan:Win32/Sirefef.K is one of the nasty Trojan viruses computer users might come across. Coming from the Trojan serial family, this small virus has a powerful effect on computers. It is known to many that thousands of fake antivirus programs and spyware could be installed in vulnerable computers without the permission from the users via the help of Trojan viruses in backdoor activities. It is like a vanguard to open the first entrance to a computer and then numerous viruses and bugs will come right after it to do damages. So don’t ignore this virus and leave it to your antivirus software. Trojan:Win32/Sirefef.K virus can avoid the detection from virus protectors and install automatically. By bring more and more troubles into the computers, this evil Trojan will inject rogue codes in order to allow remote hosts to enter your computer and take an overall control of it. Then you will be spied on and everything you do on this infected computer will be viewed by others. It can also create a fake webpage for you to sign up and enter important personal information. You may be suffering from a lose of property later. So without any doubt, you should get this nasty virus off your computer as soon as possible.

Potential Threats of Trojan:Win32/Sirefef.K

a. Other viruses and malware will come along with this Trojan virus and install in your computer without approval;
b. It can change your homepage and redirect all your searching results to malicious links and websites;
c. It can hide all the icons from the desktop and the Start menu;
d. It may shut down your antivirus software and slow down the overall speed of the computer;
e. Your personal information is in highly risk of exposure to cyber criminals.

Manually Removal Instructions

Trojan:Win32/Sirefef.K virus needs to be removed manually because it can unable the operation of legitimate virus protectors. And in case that any mistake might occur and cause unpredictable damages, please spend some time on making a backup beforehand. Then follow these steps given as below:

1. Restart the infected computer and keep pressing F8 key to log in with Safe Mode with Networking;

2. Press Ctrl+Alt+Del on your keyboard at the same time or right click on the bottom Task bar to open the Windows Task Manager;

3. Click on Processes and Select to end the process [random].exe;
4. Press Windows+R keys to open the Run window;

5. Find out and delete all these associating files as below:
%AppData%\Protector-.exe%Documents and Settings%\[UserName]\Application Data\[random]
%AllUsersProfile%\Application Data\.dll
%AllUsersProfile%\Application Data\.exe(Trojan:Win32/Sirefef.K)

6. Find out and remove all these associating registry entries:
HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run Regedit32

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run “Inspector”

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Settings “net
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run “[random].exe”
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\”Shell” = “[Trojan:Win32/Sirefef.K].exe”

Video Shows You How to Safely Modify Windows Registry Editor:

Note: If you don’t have much computer background knowledge and have failed to remove the virus by the above instructions, please contact YooCare Expert for a fast and professional removal.

Published by on May 24, 2012 10:48 pm, last updated on May 24, 2012 10:48 pm

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