ATT&CK

Threat actorsMITRE ATT&CK intrusion sets Malware & toolsSoftware families & tooling TechniquesTactics & techniques

ReportsPublished APT reporting SourcesEvery feed behind the archive

Developers

JSON APIFree CORS-enabled endpoints MCP serverModel Context Protocol access Source codeThis project on GitHub

Loading the archive…

Open Threat Intel Archive

Indicators are treated as facts and kept with their source_vendor, source URL, and dates; every feed is credited and redistribution-restricted feeds are flagged, not dropped. ATT&CK content is © MITRE, used under its terms. See NOTICE. The archive reports intelligence; it does not editorialize threat.

Indicators Actors Sources API GitHub

Open Threat Intel Archive

← Malware & tools

S0663malware

SysUpdate

a.k.a. HyperSSL, Soldier, FOCUSFJORD

SysUpdate is a backdoor written in C++ that has been used by Threat Group-3390 since at least 2020.

Platforms: Windows, Linux

MITRE ATT&CK ↗

Linked entities · 24

usesT1071.004DNS usesT1573.001Symmetric Cryptography usesT1007System Service Discovery usesT1140Deobfuscate/Decode Files or Infor…usesT1680Local Storage Discovery usesT1132.001Standard Encoding usesT1033System Owner/User Discovery usesT1057Process Discovery usesT1553.002Code Signing usesT1005Data from Local System usesT1027.011Fileless Storage usesT1083File and Directory Discovery usesT1016.001Internet Connection Discovery usesT1105Ingress Tool Transfer usesT1036.004Masquerade Task or Service usesT1041Exfiltration Over C2 Channel usesT1027.013Encrypted/Encoded File usesT1082System Information Discovery usesT1113Screen Capture usesT1543.002Systemd Service usesT1070.004File Deletion usesT1112Modify Registry usesT1564.001Hidden Files and Directories usesT1574.001DLL