[DEATHRANSOM](https://attack.mitre.org/software/S0616) is ransomware written in C that has been used since at least 2020, and has potential overlap with [FIVEHANDS](https://attack.mitre.org/software/S0618) and [HELLOKITTY](https://attack.mitre.org/software/S0617).(Citation: FireEye FiveHands April 2021)