All, On my desktop and laptop for the past three days at some point in the morning (between 10am-11am) all my browsers have been "taken over" by something. Whenever I open either Chrome, IE, or Firefox, the opening URL is what I'm stuck on. If I try to navigate to any other URL it immediately takes me back to that starting URL. When I turn on Fiddler, I can see my attempt to navigate to a new URL going out and a normal 200 HTTP response coming back but once the browser tries to render that page it immediately reverts back to the original starting URL.
The problem does not happen if I go into Safe Mode with Networking. So, is it likely that a virus has infected all three of my browser simultaneously or is it more likely that some common service that they all use is infected/broken? Should I start by reinstalling each browser or is that futile?
This certainly smells like a virus but I've done a Norton full scan (while in safe mode) and it didn't find anything. I haven't been able to find anyone articles with people experiencing the same behavior so I have no idea how to diagnose it or solve it.