Description
[Ryuk](https://attack.mitre.org/software/S0446) is a ransomware designed to target enterprise environments that has been used in attacks since at least 2018. [Ryuk](https://attack.mitre.org/software/S0446) shares code similarities with Hermes ransomware.(Citation: CrowdStrike Ryuk January 2019)(Citation: FireEye Ryuk and Trickbot January 2019)(Citation: FireEye FIN6 Apr 2019)
External References
Techniques Used by This Malware
- T1016 — System Network Configuration Discovery
- T1021.002 — SMB/Windows Admin Shares
- T1027 — Obfuscated Files or Information
- T1036 — Masquerading
- T1036.005 — Match Legitimate Resource Name or Location
- T1053.005 — Scheduled Task
- T1055 — Process Injection
- T1057 — Process Discovery
- T1059.003 — Windows Command Shell
- T1078.002 — Domain Accounts
- T1082 — System Information Discovery
- T1083 — File and Directory Discovery
- T1106 — Native API
- T1134 — Access Token Manipulation
- T1205 — Traffic Signaling
- T1222.001 — Windows File and Directory Permissions Modification
- T1486 — Data Encrypted for Impact
- T1489 — Service Stop
- T1490 — Inhibit System Recovery
- T1547.001 — Registry Run Keys / Startup Folder
- T1562.001 — Disable or Modify Tools
- T1614.001 — System Language Discovery