Many newscasters are talking about the malware/virus that's scheduled to affect internet access on Monday. myfoxdfw.com has a link to check if your computer is affected.
The link is dcwg.org or you can access it from the Fox website. From this site you can run a check for dns changer malware. The background should be green. If it shows red your system is infected.
DNSChanger was used to redirect unsuspecting users to rogue servers controlled by the cyber thieves, allowing them to manipulate users’ web activity. When users of infected computers clicked on the link for the official website of iTunes, for example, they were instead taken to a website for a business unaffiliated with Apple Inc. that purported to sell Apple software. Not only did the cyber thieves make money from these schemes, they deprived legitimate website operators and advertisers of substantial revenue.
Read more on the FBI site.