Malware
DarkShell
DarkShell is a DDoS bot seemingly of Chinese origin, discovered in 2011.
DarkShell is a Windows malware family.
Background
DarkShell is a DDoS bot, apparently Chinese in origin, that was first uncovered in 2011. That same year it was reported to be directed against the industrial food processing sector.
Source: Malpedia (Fraunhofer FKIE).