Chinese Internet Service Providers (ISPs) caught red-handed for injecting Advertisements as well as Malware through their network traffic. Israeli researchers uncovered that the major Chinese-based ISPs named China Telecom and China Unicom have been engaged in an illegal practice of content injection. Chinese ISPs had set up many proxy servers to pollute the client’s network traffic not only with insignificant advertisements but also malware links, in some cases, inside the websites they visit. The tactic has now expanded to core ISPs the Internet companies that interconnect edge ISPs with the rest of the ISPs globally.
Source: https://thehackernews.com/2016/02/china-hacker-malware.html