DNS Malware: How Do I Know if My Computer Is Infected?

You can check to see whether your computer is infected by clicking on this link, which is run by DCWG.

If the page is green, you're in the clear. If it's red, your computer is infected.

On Thursday the site got 2 million hits, but very few of those computers were infected, DCWG volunteer Barry Greene told ABCNews.com.

Google and Facebook say they have also set up notifications for infected users. If you type in a search term and see a message that says, "Your computer appears to be infected" at the top of your screen, your computer is infected.

Comcast, AT&T and Verizon are among the other organizations notifying customers if they have infected machines.

Important: According to DCWG, you should not need to scan, make changes or download anything to tell whether your computer is infected.