Do you often find that your antivirus almost updates its virus library every day, but there are still many fierce virus can threaten your PCs no matter how rigorous your antivirus is? A virus called Trojan:Win32/sirefef.eb has been making its way to spread madly on the internet in the world. If you’re one of those who have been caught by such virus, it’s time to read this article to deal with it without mercy.

Definition of Win32/sirefef.eb

Win32/sirefef.eb is a disgusting Trojan horse detected by Microsoft Security Essentials. A single spyware program on your computer is unlikely to affect system performance. Unfortunately, however, the most risk computers tend to be infected with multiple spyware programs; it’s the combination of all these programs running at the same time that can make your computer slow to a crawl. It is dangerous computer infection which penetrates into users computers secretly without permission. Win32/sirefef.eb is designed by cyber cribbers to run in your system’s memory even after the host program is closed down. Such infection spreads fast, and Microsoft Essentials could not clean this Win32/sirefef.eb from user’s laptop or desktop for it hides deep in the system dll files or rundll files. It will be back after a reboot. slow down your computer—or even worse. Some spyware programs can cause Internet Explorer to freeze or not work properly; others may actually cause your computer to crash. Be cautious while browsing! Ways to be infected with it are a lot as long as you are surfing the illegal websites or downloading unidentified files and programs, you will be exposed to numerous risks. Please don’t hesitate removing it soon when you get caught by such disgusting virus.

To save your computer, live chat with YooSecurity experts now, or you can follow the manual removal guide below to get your problem fixed. (For advanced computer users)

Why My Antivirus Didn’t pick up Trojan:Win32/sirefef.eb Virus?

Win32/sirefef.eb is a nail Trojan horse, it resets your computer settings and changes registry entry. Win32/sirefef.eb is definitely a trouble to PC users; since it can escape from security tool and much antivirus software recommended online don’t work, so you need to find an effective way to manually remove it. So if your computer is acting slowly or suspiciously, the usual suspect is some sort of spyware infection. If you intend to remove the Win32/sirefef.eb yourself, you need to possess some computer troubleshooting skills. Sometimes you cannot guarantee a full removal of it during this high complex procedure. The instruction below may be of great help in your removal.

  1. Press Ctrl+Alt+Del keys together and stop Win32/sirefef.eb processes in the Win32/sirefef.eb.
  2. Let’s open the Registry Editor, search and remove related  Win32/sirefef.eb registry entries
  3. All Windows Win32/sirefef.eb associated files should be removed.

Video Tutorial On How to Modify or Change Windows Registry:

Registry Entries That Generated By The Trojan:Win32/sirefef.eb Virus

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce\
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunServicesOnce
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\ Win32/sirefef.eb
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunServicesOnce\*

Note: If you were failed to remove the Win32/sirefef.eb virus, please contact with computer experts Online for help to safely and completely remove it.

Published by Matt Johnston & last updated on June 4, 2013 3:54 pm

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