Description of Trojan:Win32/Sirefef.AN
Trojan:Win32/Sirefef.AN is a dangerous Trojan infection that comes from Win32/Sirefef family which uses advanced techniques to damage infected machine. Usually, many computer users realize infection by the alerts of antivirus software. The virus has been quarantined, many computer users try to delete via their antivirus. It works at the beginning, however, the virus would come back again and again that cannot eradicate at all. You may find out that your computer is in high CPU usage that you can do nothing at all. The reason is the virus has taken up lots of system resources in your computer. Meanwhile, your browser will be affected by the virus as it would run in the background without your notice and awareness. Upon it installation, it would download and execute arbitrary files in infected machine to mess up the system of your computer. Unluckily, your security features (such as your firewall) may be disabled by Trojan:Win32/Sirefef.AN, so that it is able to invade the system of your computer deeply and freely. This is also one of the reasons why computer users are hard to remove Trojan:Win32/Sirefef.AN from their computers. For the sake of protecting your computer, the very first thing you need to do is to remove Trojan:Win32/Sirefef.AN as soon as possible. If you meet any trouble, please feel free to contact Tee Support certified professionals 24/7 online for the further help.
Trojan:Win32/Sirefef.AN has harmful symptoms
A: It penetrates into computer without any recognition;
B: Others horrible threats can be bundled with this virus;
C: Your personal data like bank account and passwords would be in high risk of exposure to the open;
D: It may redirect the browser to unwanted websites that contain more viruses or spywares;
E: It will degrade the computer performance significantly and crash down the system randomly.
How does Trojan:Win32/Sirefef.AN get into your computer?
1) downloading files/drivers from an unreliable web sites;
2) opening email or downloading media files that contain the activation code of the virus;
3) The virus has successfully hacked some famous social online communicate website such as Facebook, Twitter, Yahoo and sites like that. The web masters are not possible to have enough time to manage all corners of their websites. If you get any suspicious pop-up from a website, you have to be careful since the pop-up may not be from the website, instead, may be from Trojans that can control your PC within a short time if you click the pop-up.
Manually remove Trojan:Win32/Sirefef.AN step by step
Step1: Open Task Manager and end all the malicious processes created by XY. ( Methods to open Task Manager: Press CTRL+ALT+DEL or CTRL+SHIFT+ESC or Press the Start button->click on the Run option->Type in taskmgr and press OK.)Step 2: Go to Regitry Editor and delete malicious registry entries related to Trojan:Win32/Sirefef.AN:
%WINDOWS%\system32\[random_name].dll
%WINDOWS%\system32\o2flash.dll
%WINDOWS%\system32\p1131vid.dll
%WINDOWS%\system32\tb2launch.dll
%WINDOWS%\system32\wdica.dll
%WINDOWS%\ystem32\drivers\[random_characters].sys
%Temp%\[random]
Step 3: Search and Remove malicious files of Trojan:Win32/Sirefef.AN:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Attachments “SaveZoneInformation” = ’1′
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer “NoDesktop” = ’1′
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System “DisableTaskMgr” = ’1′
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run “[random].exe”
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system “DisableTaskMgr” = ’1′
Helpful video guide for manual removal
(Important Note: If you haven’t sufficient expertise in handling virus program files, processes, dll files and registry entries, you will take the risk of messing up your computer and making it crash down finally. If you need online professional tech support, click here to get: 24/7 Online Virus Removal Support.)
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