Malware
Chalubo
aka ChaChaDDoS
Sophos describes this malware as a DDoS bot, with its name originating from ChaCha-Lua-bot due to its use of ChaCha cipher and Lua.
Chalubo, also known as ChaChaDDoS, is a Linux malware family.
Background
Sophos characterizes this malware as a DDoS bot whose name derives from ChaCha-Lua-bot, reflecting its reliance on the ChaCha cipher and Lua. It comes in variants for several architectures and reuses code drawn from XorDDoS and Mirai.
Source: Malpedia (Fraunhofer FKIE).