Don't know enough to say don't have the worm. Just concerned if something is now on computer lurking in the background. I didn't click OK and did shut the computer down. Wondering why these antivirus programs don't warn or stop these things. You guys always offer better advice than other sites or antivirus help. Difficult to believe Zillow which supposedly is a well known site is allowing this. Or, maybe it is beyond their control.
Several people in the area are reporting this "worm". So be aware!