An "Android system" notification popped up on my Huawei phone, saying that I need to log in to wifi network, eventhough Ive been logged forever. I have never seen the notification like this, it had a strange icon, and when I tapped on it, it lead to a strange website, that I immediately exited. Then, when I tapped on notification management, it showed me access to all of the apps etc. In couple of minutes it dissapeared. Is this a system app or should I be worried about a hack or something of that sort?