Its a yearly theme that Asus-routers or consumer routers are getting hacked these days. Mostly cuz they have gone EOL or haven't been updated..
www.bleepingcomputer.com
New WrtHug campaign hijacks thousands of end-of-life ASUS routers
Thousands of ASUS WRT routers, mostly end-of-life or outdated devices, have been hijacked in a global campaign called Operation WrtHug that exploits six vulnerabilities.