I'm working on a repo for minimal resourced security scripts and tips for Linux from the terminal, aimed to communities and associations that doesn't necessarily know about sysadmin but want to give a try with self management tech and free software.
Here's the project main site https://terceranexus6.gitlab.io/website/g%C3%ACgur.html
And this is the last documentation article about detection of encryption using low level entropy check.
the mastodon instance at cybre.space is retired
see the end-of-life plan for details: https://cybre.space/~chr/cybre-space-eol