Basically, don’t believe anyone who tells you that Macs are safe from Viruses or Malware. Always have anti-virus and anti-Malware software installed and running.
I went and read the articles ... In the one article it noted that Google Chrome downloaded it automatically where fire fox asked if you wanted to down load.. I have been using chrome ..even as I type.. I am thinking I need to go back to Safari
The irony, of course, is that this particular malware masquerades as an anti-virus application. It only works on people who are worried about viruses.