Upon further inspection the webstie that it's locked is found to be associated with a trojan known as
Alias: Trojan.Win32.VB.zno [Kaspersky Lab]
Be sure to run a decent virus removal under safemode to insure that it's removed.
http://www.safer-networking.org/en/download/
this one should be fine enough to do the job if you currently dont' have one or your current is out of date.
Microsoft Security Essentials is also recommended as a real time virus protection and cost nothing to use.
But be aware that you will have to remove Norton, Mcafee or anything else if you plan on using an active monitoring software or you can cause confilcts along with slowdowns to your computer.
http://www.microsoft.com/en-us/security_essentials/default.aspx