I'm not saying you did anything other than post a question and a screen shot, just going over possible answers to your post. The first thing to consider is when did you take the screen shot, the second is that you tube doesn't live stream video of ISS and the watermarks are from a 3rd party site. While I know of several 3rd party sites that carry ustreams video and occasionally even their social stream they are all (including NASA's channels) plainly stamped as ustream. I believe with the exception of Harmonic's UHD 4K feed ustream is NASA's only partner, (I could be wrong but that is my understanding). My main point in this is, there is a difference between live (stream) and live (feed). Since you were watching "you tube" the video you took the screen shot from was recorded and not very recently judging by the Russian hardware in the view. This leaves plenty of opportunity for 3rd party manipulation. A quick you tube search of ISS will show you how popular the site is with UFO and flat Earth fools, plenty of footage of the "mother ship" etc. If you would like to see what really goes on in real time I recommend opening a tab with the "Live_stream" link I posted earlier in this thread. You should be aware there is a roughly 45 second delay before the video gets to you from the ISS so nobody gets (real time) video but ustream is as close as your going to get. Also there isn't much to see while ISS is on the night side of Earth (about 45 minutes per orbit) with the exception of on Live_stream the exposed cameras really light up while passing through the SAA zone, The HD sites cameras have much better shielding and rarely show any effect from this. Anyone who is interested in ISS will enjoy spending time watching these feeds, a quick note Live_stream is a channel NASA uses for maintenance, ROBO-OP's etc, it has views from I believe about 15 to 18 exterior cams that have pan and zoom capabilities. It is where most enthusiasts hang out in the social feed exchanging info, links and such, the regulars are very helpful and friendly as long as you stick with what's real but if you go into conspiracy/fringe speculation you will be ignored at best. One more note if a person wants to talk on the social feed I would recommend not linking an account to a site like like facebook etc. as you will occasionally come across some very invasive trolls, They are on a "starve a troll" diet and can be rather obnoxious before the "ban hammer" takes them out.
As a closing thought it was never intended in my posts to insinuate you were trying to pass off a whacko video, that was pretty obvious and this would be the worst possible site I can think of along with maybe the Live_stream feed itself to do that.