Hello Paul
I Thinks its a good idea to tell your friends about THIS story and warn
them about this unofficial websites like www. downloadfree.openoffice.
com (and how they all called) which are spreading maleware!
the same problem occures with other popular OSS like VLC Player.
My advise: Tell and warn your friends about the unofficial sites which
build maleware in the programms so that they learn to just download from
offical sites! It also helps to teach the people surfing focused in the
web and not clicking just the first page google offer them.
We all know why thousands of viruses spread per email in last decades:
Because people clicking on everything without thinking and checking.
greetings