Recently I began getting a strange popup on YouTube videos, especially on embedded ones. Originally it had an ad but I managed to get rid of the ad but the frame still pops up and covers part of the video and the pause/play controls. I have scanned with MSE and Malwarebytes several times with nothing found. Hopefully the screenshot will show what I mean. It only happens in Internet Explorer. It's position changes as sometimes it is lower but always on the left side.
Any help is appreciated.