Great information Adam.
Now that you mention it, I do remember someone saying their galleries had been stolen and used like this.
Okay, found it. Gleem posted about it here and I even posted in the thread. :/ I should have remembered and mentioned it.
https://gfy.com/fucking-around-and-business-discussion/725401-guy-stealing-galleries-using-install-viruses-look.html
Good on you guys for investigating further and posting the information here. Thanks