[SysUpdate](https://attack.mitre.org/software/S0663) is a backdoor written in C++ that has been used by [Threat Group-3390](https://attack.mitre.org/groups/G0027) since at least 2020.(Citation: Trend Micro Iron Tiger April 2021)
Actors that use this
0 tracked actors
No tracked actor uses this yet
Not linked to any of our tracked MENA actors in actor_software — still browsable via the ATT&CK dictionary above.