Site Hacked, “Owned By ScOrpiOn”

My blog is at https://www.mkonen.com/bblog and is working fine. The problem I am having is that https://www.mkonen.com has been hacked and while I have no content there, I need to get rid of this garbage. I really have no idea how to get rid of the hack and my hosting service isn’t much help.

This same hacker got in once before but into the blog itself. I had to go back to an old backup and then manually re-enter my lost content.

How can I isolate and remove the threat?

Thanks!