Hacked??

Using Kodi on Amazon Fire TV.

Twice now, version 16.1 and now v17, I have been using Kodi and out of nowhere Teamviewer pops on the screen. I see characters being typed and then it disappears. I have never installed Teamviewer. Today, I saw a mouse cursor move across the screen. There is no mouse or keyboard attached to the Fire Tv.

Any thoughts?