[CozyCar](https://attack.mitre.org/software/S0046) is malware that was used by [APT29](https://attack.mitre.org/groups/G0016) from 2010 to 2015. It is a modular malware platform, and its backdoor component can be instructed to download and execute a variety of modules with different functionality. (Citation: F-Secure The Dukes)