This is the virus that locks your computer and says you need to pay $X to get it unlocked. It looks like an FBI web site, but then says you have to go to Walgreens (or some other place) and get a card to pay them.
I don’t know how the hell I got it off my screen, but I did. I unplugged my router and cut power to my Mac. I clicked and clicked and finally was able to restart my computer.
So, my question is: Now what? Do I need to do some security sweep of my computer? Do I need to change all my passwords?
I’ve had good luck booting into safemode and using Malwarebytes and Combofix. Sometimes you have to run it more than once, resetting after each run to totally clean it up.
According to this, it’s not actually a Trojan, but an exploit of Safari’s Javascript system. Apparently, if you just closed the window enough times, it would eventually go away.
Looks like once it’s gone, it’s gone. I wouldn’t have thought I tried 150 times, but I guess I did. I was clicking like crazy, hoping that the expression about the definition of insanity didn’t apply.