While ISPs in the UK and other countries are blocking file sharing websites such as The Pirate Bay, movie-lovers have different alternatives to circumvent these restrictions. One popular way to overcome the filtering is using mirrors.
Torrent mirrors are essentially reverse proxies, which are forwarding HTTP traffic between the UK and the original sites hosted elsewhere. Data supposed be left intact and the only difference should be the address in the URL bar.
This experiment proves however that 99.7% of the tested BitTorrent mirrors are injecting additional JavaScript into the web browsing traffic. A great share of these scripts serve content with malicious intent such as malware and click-fraud.
