In September 2014, Doctor Web's security experts researched several new threats to Mac OS X. One of them turned out to be a complex multi-purpose backdoor that entered the virus database as <a href="https://vms.drweb.com/search/?q=Mac.BackDoor.iWorm"><b>Mac.BackDoor.iWorm</b></a>. Criminals can issue commands that get this program to carry out a wide range of instructi…