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Open Threat Intel Archive

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S0439malware

Okrum

Okrum is a Windows backdoor that has been seen in use since December 2016 with strong links to Ke3chang.

Platforms: Windows

MITRE ATT&CK ↗

Linked entities · 24

usesT1003.005Cached Domain Credentials usesT1547.009Shortcut Modification usesT1560.001Archive via Utility usesT1497.001System Checks usesT1497.002User Activity Based Checks usesT1105Ingress Tool Transfer usesT1059.003Windows Command Shell usesT1497.003Time Based Checks usesT1543.003Windows Service usesT1016System Network Configuration Disc…usesT1071.001Web Protocols usesT1001Data Obfuscation usesT1053.005Scheduled Task usesT1027.003Steganography usesT1036.004Masquerade Task or Service usesT1033System Owner/User Discovery usesT1082System Information Discovery usesT1041Exfiltration Over C2 Channel usesT1132.001Standard Encoding usesT1569.002Service Execution usesT1134.001Token Impersonation/Theft usesT1083File and Directory Discovery usesT1564.001Hidden Files and Directories usesT1090.002External Proxy