It can scan your computer on a periodic basis or when you request to perform a scan.
Intego VirusBarrier Scanner is based on the original Mac anti-malware scanning engine found in VirusBarrier. Or manually scan a specific location such as your own document folders. Choose between maximum protection to easily scan all files on your Mac which belong to you, or essential protection to scan locations where malware is commonly found. Made by the Mac experts at Intego, VirusBarrier Scanner is a free antivirus and malware removal tool for Mac. Overview Free antivirus and malware protection for your Mac