its totally possible...you run the program with intent to use it, and it works as what you thought it would be. you are not alarmed, and your system has been virusified
its a simple trojan... here, let me give you a picture of a hot girl
... oh my bad, you cant open it? *evil laugh* gullible people who click on anything... yes, hot_girl.exe is a picture
sorry, going back to my pc days... been there, done that... hacked some of my friends for fun
nothing illegal besides getting smacked in school the next day for sending out "U R G4Y" in 72 size font to their printer
but anyway..back to the point... if you click on it, its gonna do what its programmed to do... a virus is only as dangerous as its been programmed to be.
also, it very well may be out there... but chances are, there arent enough mac users out there to make it spread to catch the attention of the news or anything.
in my opinion, it could be a very well placed move by a pc lover who knows enough about mac to program a trojan to make news about them being unstable because the only thing thats been in the news lately with pc's are how often windows is getting broken into, and every virus in email getting clicked on...
i find it funny actually. here at college we get email viruses like wildfire... one idiot opens a file, and the virus is on the network now..eventually, some dumb professor with a ph d in how to ruin my day will click on it and have the permission as a professor to send an email containing the virus to every address in the schools database.... then every liberal arts major who takes a college keyboarding class is clicking on the email... lol (no offence... im being as stereotypical as i can hehe) .... and i end up getting the same email 30+ times from different people.
so yea... its possible... but not likely.. not enough people to spread the virus...
thats like the flu...but it only affects 5% of the population...real epidemic