Cryptocurrency web mining: In union there is profit

In the last months, we stumbled upon some JavaScript files apparently used to mine cryptocurrencies directly within the browser. For a long time now, cybercriminals have taken advantage of cryptocurrency mining in order to make a profit. However, they generally use malware or potentially unwanted applications they install on the victim’s machine in order to turn a dishonest penny.

https://www.welivesecurity.com/2017/09/14/cryptocurrency-web-mining-union-profit/