REvil ransomware developers say that they made more than $100 million in one year by extorting large businesses across the world from various sectors.
They are driven by profit and want to make $2 billion from their ransomware service, adopting the most lucrative trends in their pursuit of wealth.
http://ddosattacks.net/revil-ransomware-gang-claims-over-100-million-profit-in-a-year/