Some people have referred to it as "Doomsday for your PC." Come Monday, malware could cause tens of thousands of Americans to lose their internet service.
In this day and age, the internet is an essential tool for most people
"It's where I get my news, I use Pandora for music, for my job I mainly use email constantly everyday," Carissa Palmberg said.
But for some, July 9 may bring their web browsing to a halt because of malware that could have taken over their machines more than a year ago.
"We've had a few clients call with questions and we're directing them to the website to check their machines," Mac Doctors Partner Larry Lamb said.
The virus first surfaced back in 2007 and changes the way a computer accesses its Domain Name Service.
"What happens is it re-routes the DNS settings on the user's computer and makes them go to these bad servers, infected DNS servers," Lamb said.
And come Monday, Mac or PC, if your computer is infected it will no longer connect to the internet.
"It would be kind of stressful cause that's what I rely on for a lot of my access to my information," Palmberg said.
"The good side is if you're on a Macintosh and you are fairly updated with your operating system, you can run software updates and Apple will remove any malware on the machine. For PCs, it is really important to keep your updates in tact," Lamb said.
To check your computer for the virus, a special website has been set up. Click here to go to that website.