[sAmI]

And sad to say, banning such IPs won't work because I've studied how booters work. They use a wide-range of IP addresses that comes from not only Brazil, China, Pakistan and Vietnam, but also US, India, Germany and France.
You don't want to ban them, do you?

Well, My first option will be OVH-Game now,  I want to ban everything except for Pakistan and i have seen pfsense firewall does have a geoip tool which allows you to achieve this in seconds, it holds up pretty well as well. but setting an pfsense on a ovh vps does look like a mess though i might directly shift to ovh-game.