Malware
Revenant
According to its author, Revenant is a 3rd party agent for Havoc written in C, and based on Talon.
Revenant is a Windows malware family.
Background
Its developer describes Revenant as a third-party agent for Havoc, written in C and derived from Talon. The implant aims to go beyond Talon by adding stealthier execution techniques, stronger capabilities, and greater customization.
Source: Malpedia (Fraunhofer FKIE).