Manually Remove Trojan:Win32/Sirefef.AN Virus (Uninstall Guide)

Are you annoyed with Trojan:Win32/Sirefef.AN virus detected by Microsoft Security Essentials? Learn more from the following post and find an effective way to get rid of it immediately.

Trojan:Win32/Sirefef.AN Description:

Trojan:Win32/Sirefef.AN is a member from the nasty Sirefef Family targets to attack computers with 32 bit. It contains keylogging capabilities which can steal personal information such as user names and passwords, and even use your personal IM and email accounts to launch mass email attacks.

This malicious Trojan does not have an interface, and all its malicious components function stealthily deep in the system background. Once executed, it begins its attack immediately. It modifies the Windows Registry by creating several registry entries. Also this virus can run in the background and download additional files, even update itself without your awareness. Trojan:Win32/Sirefef.AN includes backdoor capabilities that allow it to open network ports to download additional malware threats onto the infected computer. All it can do is to increase the risk of your security. Undoubtedly, this kind of virus should be removed without any hesitation because it enables cyber criminals to gain remote access to the compromised PC system. Take action to remove it now!

Please take caution when you perform the manual guide below. Manual removal is a risky job, any mistake may lead to system crash immediately. If you need any help, please live chat with YooCare experts now.

Major characteristics of this nasty Trojan include:

Slow down your PC speed notably.
Add other dangerous Trojan or Spyware to your system secretly.
Allow the hacker to access your entire system.
Collect all your personal information and transfer to a remote hacker.
Destroy critical system files and make PC unstable.

Manual Removal Guides:

1. Reboot your computer to safe mode with networking. As your computer restarts but before Windows launches, tap “F8” key constantly.

2. Show hidden files and folders.

Open Folder Options by clicking the Start button, clicking Control Panel, clicking Appearance and Personalization, and then clicking Folder Options.

Click the View tab.

Under Advanced settings, click Show hidden files and folders, uncheck Hide protected operating system files (Recommended) and then click OK.

3. Open Registry entries. Find out the malicious files and entries and then delete all.

Attention: Always be sure to back up your PC before making any changes.

a. Press the “Start” button and then choose the option “Run”. In the “Open” field, type “regedit” and click the “OK” button.

b. All malicious files and registry entries that should be deleted:

%Documents and Settings%\[UserName]\Application Data\[random]
%AllUsersProfile%\Application Data\.exe(Trojan:Win32/Sirefef.AN)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\”Shell” = “[random].exe”

Video Shows You How to Safely Modify Windows Registry Editor:

If you failed to remove Trojan:Win32/Sirefef.AN with the instructions above or need any assistant, you are welcome to contact YooCare experts to resolve all the problems completely.

Published by on June 25, 2012 11:15 am, last updated on August 17, 2012 5:21 pm

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