If you don't have virus software, or didn't get an alert, then update and run again. I've tested this twice now and same alert twice, plus oodles of nasty software popups. Be warned! I'm sure its nothing malicious by the person who's meme it is, but their hosting does this, so BE CAREFUL.
more complete update later, but I thought I'd warn you all as I've seen many ppl run this meme.