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)
External References
Techniques Used by This Malware
- T1005 — Data from Local System
- T1007 — System Service Discovery
- T1016 — System Network Configuration Discovery
- T1016.001 — Internet Connection Discovery
- T1027.002 — Software Packing
- T1027.011 — Fileless Storage
- T1027.013 — Encrypted/Encoded File
- T1033 — System Owner/User Discovery
- T1036.004 — Masquerade Task or Service
- T1041 — Exfiltration Over C2 Channel
- T1047 — Windows Management Instrumentation
- T1057 — Process Discovery
- T1070.004 — File Deletion
- T1071.004 — DNS
- T1082 — System Information Discovery
- T1083 — File and Directory Discovery
- T1105 — Ingress Tool Transfer
- T1106 — Native API
- T1112 — Modify Registry
- T1113 — Screen Capture
- T1132.001 — Standard Encoding
- T1140 — Deobfuscate/Decode Files or Information
- T1543.002 — Systemd Service
- T1543.003 — Windows Service
- T1547.001 — Registry Run Keys / Startup Folder
- T1553.002 — Code Signing
- T1564.001 — Hidden Files and Directories
- T1569.002 — Service Execution
- T1573.001 — Symmetric Cryptography
- T1574.001 — DLL