A booter is a program that can be web based or client based. It consists of the command area and some 'Attack shells'. These shells attack your internet making many commands through your internet per second, this will crash your internet for around 3 minutes per time.
Lol I think you are referring to a RAT. Which is a Remote Administration Tool which can be used to control your computer remotely. I recommend stopping by in the Malware Section on here or HF.
lol these are immature eleven year olds retreating to ddos with a 60second shellbooter.
Don't worry about it and just change your ip block them from skype etc.etc.