Maze, Egregor, Conti, Sodinokibi/REvil, DoppelPaymer and NetWalker were responsible for 84% of all known attacks last year, says digital risk protection firm Digital Shadows. The average ransom payment declined by 34%, reaching $154,108, while the median ransom payment dropped by 55% to $49,450. Some gangs are demanding one or more payments for a promise to delete stolen data or to refrain from selling it to other crime gangs.”]
Source: https://www.careersinfosecurity.com/ransomware-newcomers-include-pay2key-ransomexx-everest-a-15908