Install clamscan and freshclam. Then ... sudo freshclam to update
the
virus patterns. Under /home/user create a virus folder for isolation of
viruses. You might put something in /tmp. Maybe. Then...
sudo clamscan -r --move=/home/user/clamscan_virus_folder /home/user
See also...
https://askubuntu.com/questions/250290/how-do-i-scan-for-viruses-with-clamav
Thanks, that may be useful too!
F