[Mosquito](https://attack.mitre.org/software/S0256) is a Win32 backdoor that has been used by [Turla](https://attack.mitre.org/groups/G0010). [Mosquito](https://attack.mitre.org/software/S0256) is made up of three parts: the installer, the launcher, and the backdoor. The main backdoor is called CommanderDLL and is launched by the loader program. (Citation: ESET Turla Mosquito Jan 2018)