And no. Even if I did know the blocks are already in your router to use. I find most folk blow up at the complexity of today's routers or expect a lot from support. For now, it's your router so just kick them off it when you suspect them of such actions.
So I am a League of Legends player, it's frustrating when your internet drops at any time in game, lobby, champ select, and etc. However I have suspicions that my older brother is using a booter, is there a way to block a booter on my IP?
I found out that he probably was using a booter when he got mad at me when I did researching and found that someone in the household was connected to using a Booter Service, vBooter.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic