hosts文件中加入：
127.0.0.1 static.ap.bittorrent.com
127.0.0.1 engine.bitmedianetwork.com
127.0.0.1 ads.pubmatic.com
127.0.0.1 i-1006.b-0.ad.bench.utorrent.com
127.0.0.1 static.adzerk.net
127.0.0.1 ads.bittorrent.com
127.0.0.1 activate.utorrent.com
127.0.0.1 ad.bench.utorrent.com
127.0.0.1 offers.bittorrent.com
参考：
https://forum.utorrent.com/topic/104991-what-is-this-domain-utorrent-connects-to/
