I have an Ubuntu 18.04 system running with
rkhunter installed. I keep getting warnings in the
unattended-upgrades has upgraded the system.
The solution to this would be running
rkhunter --propupd after every automatic upgrade.
I found this which mentions
/etc/apt/apt.conf.d/90rkhunter, however, this file doesn't exist on my system.
How can I make sure
rkhunter --propupd is being executed after
unattended-upgrades are done?