iTrojan
It turns out Macs can catch something. Apple’s most recent version of iWork, the counterpart of Microsoft Office, contains a Trojan. Well, almost.
The pirated version that you can download from places such as The Pirate Bay is the one that contains the Trojan. It includes an extra package when installing, and when the user gives the iWork installer administrator privileges, the Trojan package uses them to launch its own installer. After a successful install, the Trojan sends a message back to the mothership and awaits further orders.