Flash wants to install new helper
I was updating Mac Flash, I did it via the system preference pane. As usual it downloaded an installation disc image, I double clicked it as usual, it downloaded and I was asked for permission to run it which I provided. Then towards the end it asked me for the first time ever if I wanted to install a 'new helper app'. Smelling a potential rat and aware of malware packaged versions of Flash updates I clicked cancel. I had to do that several times and again when it was finished.
Can anyone advise if this was a kosher thing and what the nature of this 'helper app' might be? If this method of accessing the update site is feeding malware you have a problem. I'm running Sierra on a mid 2010 macbook pro.