It's the Snip Tool.
Amazing though because I had GoToMeeting open in my task manager as well and NowTV has no problem with that. Absolutely hilarious that a SCREEN SHOT tool triggers the detection script, but not an actual video sharing platform.
In my case problem was that software called Panopto (lecture capture software used in education) had a process running in the background (it was not actually running properly, just a background process). Using Task manager to kill it solved the problem.
Maybe, lecture capture and similar software even just running background processes triggers this, bit paranoid but there ypu go.