It must be pretty widespread. I had it happen here last week. Of all the places I use on the internet, crappie.com is the only one that seems to have been affected. Webroot is the program we use and it dispensed of it post haste.
The "You have been infected" page that pops up does indeed look authentic. It took me for a minute. Note that the warning it gives that says if you close it out you will crash your computer is BOGUS. At least mine didn't crash.
"Be Ye Fishers of Men" You catch them- He will clean them