The websites of the CBSs Showtime were found containing a JavaScript code that allowed someone to secretly mine cryptocurrency in viewers web browsers. The websites Showtime.com and iShowtimeAnytime.com silently injected in the visitors browser the code to abuse processor capabilities to mine Monero coins. The hidden code typically consumed as much as 60 percent of the overall CPU capacity on computers while visiting the sites. The scripts were written by Code Hive, an outfit that develops legitim JavaScript codes that could be added by webmasters to generate revenue as an alternative to serving advertising.”]
Source: http://securityaffairs.co/wordpress/63448/hacking/cbs-showtime-miner-script.html