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.
https://www.cloudflare.com/learning/ddos/glossary/aisuru-kim...
This is like saying that SSH is insecure because some device vendors install SSH, permitting root login with a default password of 'root'.