Clamxav

ClamXav is a trusted and highly recommended anti-virus and malware scanner for macOS with the ability to detect both Mac and Windows threats. ClamXav puts you in control - it can be set up up to scan either the specific files you tell it to, or your entire hard drive, whichever you prefer. If you like, you can also choose to activate Sentry to monitor your computer and scan any new files as they arrive. Automate scans and database updates to match your schedule.