Had this. It's a pesky one. Went to other PC and searched around in some desperation. Went to someplace called My Antispyware(dot)com and their support team contacted me with the following weird note*. I set my system calendar to six days ahead, then rebooted. Then set correct time. Then rebooted. Malware apparently gone...(?). Had to use other PC as this one was terminally borked from the virus. Only got a multiple of popups that disabled almost everything, saying "pay $ to get hip" then "pay more $ to get more hip." IE8 couldn't open. Really horrible. Weird but true: try 6-day date reset. Worked for me but I've no idea why. Also, after all this was said and done, a day or so later, my TrendMicro Pro said I had a trojan that it couldn't delete yet, so the malware was quarantined 'til TrendMicro has the right stuff to nuke it.
* Hello Dear friend!
I am really sorry that your computer has been infected. So, these pop-ups and are not the part of our product,
they are a some kind of a virus from the internet and don't belong to our program. It was done by our advertising
partner and he's already banned.
This program will be self-removed in 6 days. There would be no problems after it is deleted.
Also you can just set date and time setting in your windows control panel 6 days later according to current date.
let me know please if you have any other problems.
Thanks and have a great day!
Good luck to everyone who has gotten this. It's a nasty bugger, all right.
Hey, is it Spring yet anywhere? My window just shows snow and cold and more of the same...aargh. 
Peace