Why would you? From the looks of mech's post, this is not really an exploit, just a clever trick that has nothing to do with your machine (Do other american's experience the same thing? 'google' sends me to www.google.ca).
That is what I was thinking. Check %windir%\system32\drivers\etc\host. for any unusual entries (besides localhost 127.0.0.1). Also, check your IP stack by opening your network connection and seeing if the TCP/IP properties have not been set to a static DNS. If DNS has changed to a malicious site, they can redirect any entry to another site. You could type www.goggle.com and their DNS will point it to the other site when the browser tries to resolve the address to a numeric IP.
Because it is not classified as a virus. Virii are self-replicating and generally do require action (worms do not and can effect a machine without a user - pet peeve about calling something in e-mail a "worm" - the definition has blurred). Anyway, this is usually a one shot deal via an exploit in a browser or by social engineering to get you to click OK to install it. It usually implies you have the right to change the settings (read admin or power user). AND most AV packages do not find this as it is a behavior as they watch for file signatures. Spyware scanners tend to find it (but sig based for the most part.) The only thing I know will catch it by deed instead of content is Cisco Security Agent with the correct rules. But CSA is not available over the counter (enterprise software from Cisco.)
