This is the software publisher's description.

With PC Tools iAntiVirus you are protected against the most nefarious cyber-threats attempting to gain access to your Mac and personal information.

Once your computer has been infected, a virus or worm will usually attempt to spread itself to your friends, family and associates by accessing your email contacts and networked PCs. The infection may also allow hackers to access files on your Mac, use it to launch attacks against other computers and websites or to send mass SPAM email.

PC Tools iAntiVirus provides real-time protection and comprehensive system scanning to ensure your Mac remains safe and virus free.

The iAntiVirus database has been designed from the ground up to detect and remove Mac specific threats. This enables a high level of protection whilst keeping memory footprint and resource usage at a minimum. The iAntiVirus database is not cluttered with signatures for Windows specific threats which your Mac is immune against.

iAntiVirus has been designed with the user in mind. The user interface is purely functional, making it simple to scan for, remove and manage infections.