What will happen if your anti-virus in your computer is inoperative one day? You may find a severe virus, but your malware defender is just dumb like a fool which is helpless to clear away it? I do believe this is the problem of many people they truly hate to face. Recently, many people found that there was a virus called Trojan:Win32/Sirefef.AL detected by their anti-virus but they can do nothing to kill it. Is there an excellent solution to get rid of it?

Details about Trojan Win32 Sirefef AL

Trojan:Win32/Sirefef.AL, if you are not familiar with it, you’d better learn something about it. Let’s read those information from Microsoft Malware protection center: Trojan:Win32/Sirefef.AL is a component of Win32/Sirefef – a multi-component family of malware that moderates your Internet experience by modifying search results, and generates pay-per-click advertising revenue for its controllers. The family consists of multiple parts that perform different functions, such as downloading updates and additional components, hiding existing components, or performing the main payload. So when your computer get such Trojan infection. It may show different symptoms. Initially, your browser search results will be redirected to some unknown webpages which may be full of malicious advertisements and phishing websites. Just like the Microsoft reports, some part of it will download more other additional malware to your computer. So later, you may find more virus will pop up in your computer, as a result, your computer works more and more slowly as if it’s an old machine out of date. Along with Trojan:Win32/Sirefef.AK, Trojan:Win32/Sirefef.AG, they are brethren in Win32/Sirefef family. Why has your anti-virus detected the virus but can’t get it away from your computer? Trojan Win32 Sirefef AL prevents the firewall from working properly by stopping the service “MpsSvc“, which is a part of the firewall. It also opens and listens on port 25700, possibly for commands from a remote attacker. So the infection will lead to your malware defender in paralytic position. The Trojan can also attack your antivirus program and prevent it from taking effective. In a word, Trojan:Win32/Sirefef.AL endangers your Internet environment and slows down your PC system performance. Moreover, the hazardous Trojan horse modifies your system settings, registry settings and critical files to record your precious information as much as gather your money and perform illegal activities. Since this kind of Trojan can block any software cleaning it, the only best way to remove it is in manual way. Please follow the guide below to do something  for your infected PC.

To remove such virus easily and safely, you can contact YooCare online PC service for help here:

Key sentences to judge if your computer has been infected Trojan Win32 Sirefef AL Virus

A. Your computer is something not normal as usual such as running very slowly.

B. When you open the Task Manager, you can find some strange progress which you never found before.

C. Some of your computer functions are unavailable or some normal legal program can’t run or there are unusual conditions of them.

D. It always constantly happens that your system has errors somewhere.

E. Lately, your computer system will be totally destroyed.

Best Way to Remove Trojan:Win32/Sirefef.AL Virus & Manual Removal Step by Step?
Step 1: Press CTRL+ALT+DEL or CTRL+SHIFT+ESC. Open the Windows Task Manager.
If that didn’t work, try another way. Press the Start button and click on the Run option. This will start the Run tool. Type in taskmgr and press OK. This should start the Windows Task Manager

Step 2: Within the Windows Task Manager click on the Processes tab. Find the process by name. random.exe. Then scroll the list to find required process. Select it with your mouse or keyboard and click on the End Process button. This will kill the process.

Step 3: Delete malicious registry entries.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\random characters
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\run\random characters

Step 4?Remove malicious files of Trojan:Win32/Sirefef.AL Virus

Video of Key Steps on How to Modify or Change Windows Registry:

Based on various situations and computer skills, you can choose the following solutions fit for you.
1. Follow the steps we provide to manually remove the virus.
2. If you failed to remove Trojan:Win32/Sirefef.AL Virus Infection with the method above, please consult YooSecurity certified professionals to remove it completely. Live chat with professionals now

Published by Tony Shepherd & last updated on June 19, 2012 2:28 pm

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