Anyone knows what kind of script this is?

Hey,

I've been googling twitter autofollower scripts lately and I have come across
a lot of sites which seem to have the same script with just a different layout.

One of these sites is 'http://freefollowers.me'. I was wondering if
anyone knows what this script is? Were I can get it and if not if
they know a script similar to this?

I hope anyone can help me out^^.

Thanks!