You resell a game, bundling a botnet proxy inside, and make it freemium: free if you accept T&C with a service allowing using your device connection for research purposes (or whatever wording could be even more confusing), or pay $20.

It's no longer a botnet, it's a "residential proxy" and you are doing clean business.

Trillion dollar AI companies use/used these to scrape the Internet. You don’t want to smear their good names do you?