apt install clamav
Go into the desired directory to scan then start with :
clamscan -ir
In another terminal, enter :
watch "lsof -Fn -p `pidof clamscan` | grep ^n\/[^tpdul] | cut -c1 --complement | tail -n1"
If output says
LibClamAV Error: cli_loaddbdir(): No supported database files found in /var/lib/clamav
Enter
sudo service clamav-freshclam stop
sudo freshclam
sudo service clamav-freshclam start
(thanks to issue )