NOTE: for Mac OS X Tiger, Mac OS X Leopard. Does not work on MacOS Sierra.

McAfee VirusScan for Mac uses on-access scanning to guard
against all types of viruses and malicious code, including
new and unknown threats that target OS X. VirusScan for Mac
offers unintrusive protection as it hunts down and kills
viruses, worms, Trojans, and other malicious code that
attempt to infect Macintosh systems.

Easy to use and always on guard, VirusScan for Mac
automatically keeps your protection up to date and lets your
Macintosh users work uninterrupted. VirusScan for Mac is
supported by McAfee Avert- Labs.recognized as the worlds top
threat research center.