You could have a look at munin. It’s incredibly simple but effective. Quite easy to write your own plugins for if you’re missing some data. http://munin-monitoring.org/

Reminds me of a presentation I saw a few months ago by netsafe which is an new zealand non profit that has an ai driven system to keep scammers busy. You can try it out or learn more about it here: https://rescam.org/

Dangerous Dave on DOS, must have been in the early 90ies somewhere. https://en.m.wikipedia.org/wiki/Dangerous_Dave

Quite a good follow up talk posted not so long ago.

https://www.youtube.com/watch?v=rimtaSgGz_4