How to block scanners, bots, malware, ransomware

Here is a minimalist script that uses ipset lists on the routers firewall to block scanners, bots, malware, ransomware, brute force crackers, bogon IPs, hacked IPs, hostile spiders, etc, (much over 650 million unique sources) from the published tiers Level1 through Level4 maintained by Cybercrime IP Feeds by FireHOL

The script is located here

The snbforums thread to discuss the script is here

Features, installation instructions, scheduling, whitelisting and other information is detailed in the first post on that forum thread.