It's a social problem, technical solutions aren't going to work. To solve social problems you need the law to get involved. It should simply be illegal to install malware on someone's TV and use it to hijack their internet connection, and the punishment should be the same as for any theft of service, including imprisonment for people who do it.
You just take a sample of the crawling to whichever police department knows how to deal with DDoS, they subpoena the ISPs involved and trace who's using the proxies?
