ClamAV

ClamAV is an open source signature based anti-virus scanner maintained by Cisco.

Install

$ sudo apt install clamav clamav-base clamav-daemon clamav-freshclam
$ sudo freshclam
$ clamdscan [*options*] [*file/directory/-*]
$ clamscan [options] [file/directory/-]

References

https://docs.clamav.net/manual/Usage/Scanning.html
https://docs.clamav.net/manual/Installing/Packages.html