[Ninja](https://attack.mitre.org/software/S1100) is a malware developed in C++ that has been used by [ToddyCat](https://attack.mitre.org/groups/G1022) to penetrate networks and control remote systems since at least 2020. [Ninja](https://attack.mitre.org/software/S1100) is possibly part of a post exploitation toolkit exclusively used by [ToddyCat](https://attack.mitre.org/groups/G1022) and allows multiple operators to work simultaneously on the same machine. [Ninja](https://attack.mitre.org/software/S1100) has been used against government and military entities in Europe and Asia and observed in specific infection chains being deployed by [Samurai](https://attack.mitre.org/software/S1099).(Citation: Kaspersky ToddyCat June 2022)