Mayhem is a well-documented Linux/Unix malware strain first widely analyzed around 2014-2015, though active campaigns have persisted.
To recover, you must pay a ransom to get the map of where the fragments are stored. Without the map, even if you have backups, the Pwnhack operators threaten to publish the fragments individually—revealing trade secrets piece by piece like a horrifying jigsaw puzzle. Pwnhack.com Mayhem
Using Python to send the payload to the local binary or remote server: Mayhem is a well-documented Linux/Unix malware strain first