Comodo Linux Antivirus - This is a powerful anti-virus file scanner that combines ease of use.
Features:
✔ detects and effectively removes viruses, malware and spyware
✔ prompt updating of anti-virus databases
✔ scanning by time
If you have a system that uses kernel 4.2 or lower, it is possible to install a patch, that will allow you to scan files and mail messages on the fly.