You haven't been able to connect to an android device on port 5555 for yeeears. Every time you enable adb/IP it generates a new random port, or you need to use the QR/PIN pairing thing. On top of needing to enable developer options, adb/IP, confirm the fingerprint.
Kimwolf exploits vulnerable Android Debug Bridge (ADB) services. Many low-cost TV boxes come "pre-infected" with proxy SDKs; Kimwolf then scans these residential proxy networks and exploits the devices within minutes as it propagates.
Well yes, but those won't get Google's new updates either. Open ADB on 5555 was a problem we solved almost a decade ago and these devices are still vulnerable. Even further restricting ADB in the latest version won't do anything to prevent that.