How to Remove Rootkit.Sirefef.Spy Virus

Rootkit.Sirefef.Spy virus targeted my computer while I was opening an unknown email attachment. The Trojan alert popped up frequently, but it can’t seem to be deleted via the anti-virus software. My computer performed very poorly and it got freezes easily. What can I do to save the computer? How to get rid of the rootkit Trojan virus without making any damage? Benefit yourself from this article and follow removal guide below to clean out the rootkit virus completely.

Definition of Rootkit.Sirefef.Spy Virus:

Rootkit.Sirefef.Spy is a malicious Rootkit Trojan virus that has been a great threat to worldwide computers. The rootkit virus must be removed immediately, or it will damage the computer miserably. In general, the Trojan takes chance to penetrate into the computer during users’ visits to harmful websites, suspicious links and download nasty freeware. It installs in the computer automatically and runs itself in the background. It is a potentially unwanted program that takes up the CPU usage obviously. To mess up the computer terribly, the rootkit Trojan creates new affected files with random file names and modifies your system files and registry entries. It causes cause system slowdown, Internet connection loss and file missing issue to the computer. Once the computer is damaged, it is easy to get system freezes and crash at startup, shutdown and large programs launching process. Invasive as the Trojan virus is, it usually comes bundled with potential threats like malware, spyware and adware. Such a Trojan infection should not be ignored or left in the computer too long. Instead, users had better eliminate the rootkit virus from the computer promptly.

The Rootkit.Sirefef.Spy virus may exploit system vulnerabilities of the computer to download some unwanted extensions, plug-ins and ads-on and enable them to be installed secretly. It triggers great troubles to users’ online activities. In detail, the Trojan infection may typically redirect users’ Internet search results to non-beneficial web pages which belong to browser hijacker or notorious parties online. It also displays pesky pop-up ads on the screen, asking you to download free software and visit sponsored links. Moreover, the rootkit Trojan infection changes the desktop image, browser homepage and other computer settings at random. The key point of the Trojan virus is to enable cyber hackers to compromise important data stored on the computer. In such an urgent case, users need to delete the rootkit virus immediately.

How to get rid of the rootkit Trojan virus effectively? Many PC users may notice that the advanced antivirus still fails to deal with the rootkit virus. In fact, the Trojan virus is designed to bypass the detection of security protections, as it causes malfunction to antivirus and other executable programs. Also, the Trojan infection changes itself daily, making it difficult for anti-virus software to figure out a perfect solution. If you call a technician at door or take the computer to a local repair shop, you will find it a waste of time and money. Actually, a prompt manual removal of this Rootkit.Sirefef.Spy virus with assistance of professionals online is a wise choice.

The following instructions require certain levels of computer skills. If you’re not sure and are afraid to make any critical mistakes during the process, please live chat with YooCare Expert now.

Instructions on Removing Rootkit.Sirefef.Spy Virus Completely:

Manual removal is a complicated and risky process which requires sufficient PC skills. If you are afraid to make any changes to your system, please back up your vital data before going ahead to delete any of this Trojan infection related system files and registry entries. Also, be cautious when moving forward to deal with the Trojan horse manually.

1. Press Ctrl+Alt+Del keys together and stop Rootkit.Sirefef.Spy virus processes in the Windows Task Manager.

2. Go to Folder Options from Control Panel. Under View tab, select Show hidden files and folders and uncheck Hide protected operating system files (Recommended), and then click OK.

3. a. Press Windows+ R keys to pull up the Run box.


b. Search for regedit in Run. (Type regedit in the Open filed of Run, and click Ok)

Registry Editor

*Note: Remember to back up beforehand.

Delete associated files and registry entries related to Rootkit.Sirefef.Spy virus from your PC completely as follows:

%AllUsersProfile%\Programs\{random letters}\
%AllUsersProfile%\Application Data\~r
%AllUsersProfile%\Application Data\~dll
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings “CertificateRevocation” = ‘1’
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Attachments “SaveZoneInformation” = ‘0’

4. Reboot the computer normally to take effective, when the above steps are done.

This Video Shows You How to Safely Modify Windows Registry Editor:

In Conclusion:

The Rootkit.Sirefef.Spy virus is released by cyber criminals and it takes every possible way to target your computer. It usually takes use of system loopholes to deliver additional computer threats. Once the rootkit virus invades the computer, it slows down the system performance and affects functions of normal programs greatly. It also makes modifications to computer files and drops some malicious files to the contaminated system. Any ignorance of the rootkit virus will lead great damages to the computer, such as computer freezes and system crash etc. Since the antivirus can be disabled by the Trojan virus, then manual removal becomes a better choice. If you have no idea of this Trojan removal, please contact YooCare PC experts 24/7 online who will offer you the most effective tech support to remove the risky virus successfully.

Friendly Reminder: If you have tried to remove the Trojan attack in vain, please contact YooCare: PC professionals 24/7 online will offer you the most effective tech support to delete Rootkit.Sirefef.Spy virus completely.

Published by on May 3, 2014 2:13 am, last updated on May 3, 2014 2:13 am

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