For yyy65.html and other yyy-type popups, you can use the l2mfix program found at these locations:

http://www.downloads.subratam.org/l2mfix.exe
http://www.atribune.org/downloads/l2mfix.exe

Download the zip file and unzip it to your desktop. This will create an l2mfix folder.

From within the folder run the l2mfix.bat file.

Select option #1 for Run Find Log.

Select option #2 for Run Fix. It will reboot your computer and then run the fix on reboot. On some systems the scanning passes may take a while so be patient.

After it is done it will open up notepad with a trace log.

I usually run ewido and a virus checker like AVG after that, just for good measure.