Ransomware, cybercrime earned $144.35 million in six years FBI supervisory special agent DeCapua: The Top Ten of malware variants sees Ryuk as the… Ransomware, cybercrime earned $144.35 million in six years 2 March 2020 Francesco Bussoletti Cyber, Defence and Security FBI supervisory special agent DeCapua: The Top Ten of malware variants sees Ryuk as the winner with $61.26 million, followed by Crysis/Dharma ($24.48 million) and Bitpaymer ($8.04 million).