[Unit]
Description=ClamAV virus database updater
Documentation=man:freshclam(1) man:freshclam.conf(5) https://docs.clamav.net/
Wants=network-online.target
After=network-online.target

[Service]
ExecStart=/usr/bin/freshclam -d --log=/var/log/clam-update.log --foreground=true

[Install]
WantedBy=multi-user.target