I use Norton 360 so I would hope that it would include that. Besides, whatever it is is completely blocking access to Norton or Symantec websites.
It's going around and I had it the day after Christmas and it took me over a day and a half to get rid of it all!
One of my grandkids downloaded a "cheat-sheet" for her X-Box and I got the Downloader 2009 malware! It infests the computer so badly that it will shutdown Windows Firewall, it blocked access to my AVG antivirus. AVG was showing 'no components'!!!
The most amazing thing the virus does is block access to any 'help sites'. The only way I could get to any forum or help site was by clicking on the cached page.
Go to Downloads.com and get Malwarebytes. It is fantastic, the first time it ran it found 32 trojans and downloaders! I have done two full scans [take 2 hours each] and seem to be clear of it now and my AVG antivirus is up and working again since the last scan.
A computer guy I talked to said that kids go to these sites to get cheat-sheets and 'stuff' and that parents don't know it but the kids will shut down the firewalls and antivirus to download the cheatsheets and your computer immediately gets infected.
Anyway, first off, just out of curiosity, what browser are you using?
Most steps already offered, will probably work. But you should know, that running and or installing any kind of removal software from an infected system is suspect IMHO. Especially if you're running windows and the user has administrator rights.
Back in the day, the preferred method to eradicate such infections was to boot into DOS from a clean floppy, then run the AV software from floppy. That's still the preferred method IMHO, although the software has gotten bigger so booting from CD/DVD would be the norm today. I don't know if you can make a Windows boot CD, but it would be wise to have a Live CD/DVD of a Linux distro around. Very good AV software is available that runs on Linux and a Live CD puts you into a working system from DVD so it can't be infected. And yes, a Linux Live CD can access an NTFS file system.
Also, as an afterthought, whenever you come across the popups that you did, trying to close the popup, or properly shutdown windows, is probably a bad idea. Any half assed virus programmer will have accounted for that and doing so will probably just aggravate the situation. My method would be to hit the power button immediately. Then boot from CD and scan the system.
FWIW & good luck!