***update part 2! After an hour the message+ app updated again and the ISM app popped back up. As it's essential for the messages to work, I recommend to all to simply hide the app so it continues to run but isn't tampered with. This can be done from you main app tray, then options (where you select how to sort the apps) and hide apps, this let's you hide ones you don't need like ISM
Showed up on my Note 8 this morning. How did you see it associated with Messanger+ ?
It doesnt look easy to uninstall...just a disable button available for me.