The value of cryptocurrencies has increased significantly, a new kind of threat has become mainstream, some might say has even surpassed all other cybercrime. Malwarebytes has been blocking coin miners with its multiple protection modules, including real-time scanner and web protection technology. Malicious mining is such a lucrative business that malware creators and distributors the world over are drawn to it like moths to a flame. The emergence of a multitude of new cryptocurrencies that can be mined by average computers has also contributed to the widespread abuse we are witnessing.”]
Source: https://blog.malwarebytes.com/cybercrime/2018/02/state-malicious-cryptomining/

