Ryuk
- ID
- S0446
- Type
- Malware
- Platforms
- Windows
- Source
- attack.mitre.org
- MITRE last modified
- 23 Apr 2025
Ryuk is a ransomware designed to target enterprise environments that has been used in attacks since at least 2018. Ryuk shares code similarities with Hermes ransomware.[1][2][3]
Techniques used (22)
- 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
- T1083 File and Directory Discovery
- T1106 Native API
- T1134 Access Token Manipulation
- T1205 Traffic Signaling
- T1222.001 Windows Permissions
- T1486 Data Encrypted for Impact
- T1489 Service Stop
- T1490 Inhibit System Recovery
- T1547.001 Registry Run Keys / Startup Folder
- T1614.001 System Language Discovery
- T1680 Local Storage Discovery
- T1685 Disable or Modify Tools