SysUpdate
Essential information
- Confidence
- 100/100
- Is family
- Yes
- Published
- 29/11/2021 19:37
- Modified
- 27/03/2026 01:06
- Revoked
- No
- Author / Source
- The MITRE Corporation
- Related entities
- 59 attack patterns (mitre), 1 intrusion sets (apt), 6 sectors, 2 indicators
Aliases
HyperSSL Soldier FOCUSFJORD
Description
[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)
Marking (TLP)
TLP:CLEAR Copyright 2015-2025, The MITRE Corporation. MITRE ATT&CK and ATT&CK are registered trademarks of The MITRE Corporation.