Can’t Remove Win32:Sirefef-QY Effectively? (Manual Removal Guide)

Is your computer encountered by a dangerous virus called Win32:Sirefef-QY? Do you want to know how does it come into your computer? Do you seek ways to remove it soon? This post is ready to help you kill it.

Definition of Win32:Sirefef-QY.

Win32:Sirefef-QY is identified as a harmful Trojan which is not only can bring harm to the compromised computer but also can do some harm to the network. Therefore, if your computers share the same network, they also can be infected by this stubborn virus. It has a hidden code, which can install some malware to your computer so that your computer will be faced with great harm. It also can copy itself and it is used to track activity of current user. Many cyber criminals seize this shortcoming then create an illegal way called “backdoor” to send spam or do more harm to your computer. “Backdoor” also can be regarded as an easy way for remote attacker to steal current user’s sensitive information including bank account and email account with effortless. Furthermore, many other malware will come into your computer hand in hand without your notification.

Many computer users may feel really confused that why they can get this dangerous Trojan because they just surf the web or download some software in the same way like they always do. But it is a tricky virus which can hide itself in useful software. So when you are downloading some free software, it has penetrated into your system before you can be realized. This Trojan also can be attached in an email attachment or image files so please don’t try to open an unknown email attachment or a file sent from stranger. However, this Trojan can manipulate your computer as well. Therefore, it may use your close friend’s email to send its spam to you if your friend’s computer also gets this virus. The best way is to consult your friend firstly before you open the attachment. All it wants is to collect money from you. So please take actions to remove it as soon as possible.

Manual removal is a risky job as any mistake will lead to system crash immediately. When you perform the following guide, back up your data first. If you’re not computer literacy or not sure how to deal with registry entries, please live chat with YooCare experts now.

Symptoms to Tell You That Your Computer Has been Infected by Win32:Sirefef-QY.

Your email will be sent without your consent. And your email can be received tons of feedback which you don’t know.
You computer runs slower than before and you can find that the icons on your desktop have been wiped out.
There are many other unwanted commercial adds will be displayed after you turned on your computer.
It can be manipulated by remote attacker so you may feel that your mouse isn’t controlled by you.
There are a lot of random files can be found in your system.

How to Get Rid of This Trojan Completely So That Your Computer Can be Clean?

As we all know that Trojan is much more dangerous than rogue virus and browser hijacker. The most dangerous point is that it can expose your personal information to cyber criminals. Therefore, it should be manually removed as early as possible since turn off the computer or clean it by antivirus is not a wise decision.
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.

Step2:Stop all processes in the Windows Task Manager.
C:\WINDOWS\system32\[random name].dll

Step 3: Manually get rid of registry entries created by This Nasty Virus.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\[random]
HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\[random]

Similar video guide on how to reset Windows Registry entries:

If you failed to remove Win32:Sirefef-QY 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 15, 2012 1:02 pm, last updated on July 15, 2012 1:02 pm

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