Best Way to Get Rid of Trojan.sirefef.HK Virus – Trojan Manual Removal Help

Can’t remove Trojan.sirefef.HK from your computer? Is there a permanent removal way? In the following post we’ll help you get rid of such nasty virus completely and safely.

Trojan.sirefef.HK Description:

Trojan.sirefef.HK is categorized as a risky virus that is also a member of malicious Sirefef family. It always comes bundled with other threats such as trojan.sirefef.gz, trojan.sirefef.gz,,, Both of these threats pose huge risk for the infected machine as they will keep attacking target computers without users’ permission.

When it is installed, it can slow down your PC performance and make your computer stuck all the time. Your antivirus program can detect it but will definitely fail to remove it because this Trojan is stubborn and able to disable any antivirus programs. Being as a Trojan, it is able to open the backdoor to invite the remote server, and then try to attack the weak administrator passwords and steal your personal information. What is worse? Your computer may receive warning saying that a Trojan is found and it will reboot automatically within 1 minute. Thus, you must be mad since your PC will keep rebooting and you can’t do anything on it at all. All in all, it is strongly recommended users to remove this threat as soon as possible to make sure the safety of your computer.

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.
The most dangerous actions of this Trojan:

Freeze or shut down computer randomly
Open backdoor and download other threats
Let hackers remotely access your PC secretly
Track your personal activities on the Internet
Compromise your personal information and privacy

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:

%AllUsersProfile%\Application Data\.exe

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run .exe
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\[TROJAN FILE NAME] = “%System%\[TROJAN FILE NAME] .exe”
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{4F7ADD4C-7E38-0090-5B61-D0066CBA740E}

Video Shows You How to Safely Modify Windows Registry Editor:

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

Published by on July 21, 2012 12:55 pm, last updated on August 17, 2012 4:53 pm

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