Thanks for the help and direction to takedown notices. We have talked to a
lawyer and gotten a similar one, but this is a good resource.

The code that they used HTTrack is in their code. In fact so is all of our
analytics code which is how we found them! Since they were utilizing some of
the assets from our site we were able to block their IP for now.

I wish this software provided some protection against situations like this. I
understand the purpose but it is being used illegally as well.