What is W32.Virut.CF?
W32.Virut.CF is a computer virus that affects Windows 98, Windows 95, Windows XP, Windows Me, Windows Vista, Windows NT, Windows Server 2003, and Windows 2000. When executes, W32.Virut.CF attempts to inject malicious codes to files with the extensions like ‘.exe’ and ‘.scr’. Meanwhile, W32.Virut.CF also embeds an iframe into the body of the web-related files, such as .html, .php, .htm and .asp.

Besides executables, W32.Virut.CF also modifies the HOSTS file and infects clean machines accessing the infected web pages, while at the same time, preventing an infected computer from connecting and getting re-infected. After compromising the computer, W32.Virut.CF will open a backdoor for a remote attacker who will use this backdoor to gain access to the infected system.

Do you have W32.Virut.CF?
If you have enough time and expertise, you can search your computer for W32.Virut.CF manually. However, it might take hours to find out all files of W32.Virut.CF, and it is possible that W32.Virut.CF will appear after rebooting, for its hidden files may still be there.

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Manual W32.Virut.CF removal instructions
WARNING: The manually removal method is for advanced users. W32.Virut.CF manually removal can be difficult and time-consuming. There is no guarantee that W32.Virut.CF can be completely removed, for there are hundreds of files generated when W32.Virut.CF installed on your system. Make sure to back up your computer in case that you make any mistakes and your system does not work.

Follow the instructions below for W32.Virut.CF removal manually:

Navigate and stop the W32.Virut.CF processes:
N/A

Navigate and delete W32.Virut.CF files:
N/A

Navigate and remove W32.Virut.CF registry keys
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List

What are the symptoms of W32.Virut.CF?

  • W32.Virut.CF may infect html and HOSTS files
  • W32.Virut.CF may prevent infected PC from connecting
  • W32.Virut.CF may open a backdoor for a remote attacker
  • W32.Virut.CF may redirect the browser to unknown location
  • W32.Virut.CF may decode an unknown server name or port number

How do I keep away from W32.Virut.CF
Once you have cleaned up W32.Virut.CF, the most important point to prevent W32.Virut.CF and future malicious programs from reverting is to stay suspicious of spam E-mail attachment and unknown websites. Here are several ways in which you can help protect your computer against W32.Virut.CF and other malware:

  • Use a computer firewall
  • Confirm that you have downloaded all the latest critical security updates
  • Adjust Internet Explorer web browser’s security settings
  • Download and install anti-spyware protection, such as, Spyware Cease
  • Surf sites and download programs from the web sites you trust

What is Virus?
W32.Virut.CF is a virus.

A program or piece of code that is loaded onto your computer without your knowledge and runs against your wishes. Viruses can also replicate themselves. All computer viruses are manmade. A simple virus that can make a copy of itself over and over again is relatively easy to produce. Even such a simple virus is dangerous because it will quickly use all available memory and bring the system to a halt.