AVG picks up a virus called Luhe.Sirefef.A on my computer and it keeps popping up every 5 min. And I notice that my browser keeps redirecting me to other websites. Every time I tried to remove the virus, it returned an error stating it was unable to complete the operation. It really drives me nuts!!!! I’m not a computer buff at all, any help will be appreciated.
Luhe.Sirefef.A is a member of Sirefef family and it is a mischievous backdoor Trojan which enters the system through various software exploits. Your computer may get this Trojan when you click unsafe links accidentally.You will constantly get stuck while you are using the infected computer and some applications including antivirus will be prevented from being executed normally and it can slow down the speed of your PC as well. Luhe.Sirefef.A settles itself down on a computer without any awareness or attention and then becomes a stealer of personal information and confidential data stored on the computer. That’s why many computer users will lose their information when they found their personal information such as credit card number, bank account and social security number exposed to the public.
Luhe.Sirefef.A may cause troubles when you go online. Particularly, the Trojan can also change your computer and Internet settings, which makes you annoyed virus much. What is more, it may redirect your favorite websites to other unfamiliar web pages which are terribly bundled with many harmful threats. The Trojan can make remote access to your computer without any permission on the purpose of gathering your vital information out of control. At the same time, cyber hackers may take the chance to access your computer performing illegal tasks without any knowledge. Therefore, you should remove this Trojan horse as soon as possible.
a. There will be lots of annoying pop-up ads and fake security alerts;
b. It will block your access to the Internet and redirect everything you do on your browser to malicious web pages;
c. It will reduce your PC performance and create many junk files to wreak chaos;
d. Antivirus programs on the computer will automatically be shut down;
e. It may come with additional viruses and malware to further damage your computer;
f. Your private and critical information may be captured a remote host who will use them for Internet crimes;
Currently many computer users had the same experience that this virus couldn’t be removed by any anti-virus applications. So the manual approach is always required to combat this virus. And here is the step-by-step removal guide for all computer users.
1. 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.
2. 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:
In conclusion: As the above mentioned, Luhe.Sirefef.A virus can is a great danger for users’ computers as this Trojan can greatly affect their computer performances in many aspects. Usually, it gets into victims’ computers once they again access to malicious websites, spam emails or download dangerous programs without any notice. After infected, the computer will get very poor system performance and corrupted files. Also, you may experience computer freezing and even system crash. Even advanced anti-virus software is still blocked by the malicious Trojan horse. Do not hesitate, if you just let this virus in your PC, it may cause great damage, you need to remove Luhe.Sirefef.A virus as soon as possible.
If you cannot handle the manual removal yourself, please contact experts from Yoocare Online Tech Support for further help.
Published by Selina Lynmich, last updated on March 12, 2013 5:24 am | How to Guides