So far, the Trojan has been detected in a BitTorrent download for GraphicConverter version 7.4, an image editing application for Mac OS X. However, this doesn't mean that there aren't similarly Trojanized torrents out there.
"Clearly, Mac users -- like their Windows cousins -- should practice safe computing and only download software from official websites and legitimate download services," Cluley said. He also stressed that Mac users should install an antivirus program, which is not hard to do and costs nothing.
There are several providers of free antivirus solutions for Mac and all of their solutions are more capable than Mac OS X's default anti-malware defense mechanism, which some Trojans already bypass or even disable.