Okrum
- ID
- S0439
- Type
- Malware
- Platforms
- Windows
- Source
- attack.mitre.org
- MITRE last modified
- 25 Apr 2025
Okrum is a Windows backdoor that has been seen in use since December 2016 with strong links to Ke3chang.[1]
Techniques used (34)
- T1001 Data Obfuscation
- T1001.003 Protocol or Service Impersonation
- T1003.001 LSASS Memory
- T1003.005 Cached Domain Credentials
- T1016 System Network Configuration Discovery
- T1027.003 Steganography
- T1033 System Owner/User Discovery
- T1036.004 Masquerade Task or Service
- T1041 Exfiltration Over C2 Channel
- T1049 System Network Connections Discovery
- T1053.005 Scheduled Task
- T1056.001 Keylogging
- T1059.003 Windows Command Shell
- T1070.004 File Deletion
- T1071.001 Web Protocols
- T1082 System Information Discovery
- T1083 File and Directory Discovery
- T1090.002 External Proxy
- T1105 Ingress Tool Transfer
- T1124 System Time Discovery
- T1132.001 Standard Encoding
- T1134.001 Token Impersonation/Theft
- T1140 Deobfuscate/Decode Files or Information
- T1497.001 System Checks
- T1497.002 User Activity Based Checks
- T1497.003 Time Based Checks
- T1543.003 Windows Service
- T1547.001 Registry Run Keys / Startup Folder
- T1547.009 Shortcut Modification
- T1560.001 Archive via Utility
- T1560.003 Archive via Custom Method
- T1564.001 Hidden Files and Directories
- T1569.002 Service Execution
- T1573.001 Symmetric Cryptography