{
  "title": "SystemHelpDesk Detection - Tukrina (Ransomware) Execution & Triage",
  "id": "f2d3a179-92cc-5115-be10-26c9833a0985",
  "status": "production",
  "description": "Detects execution, defense evasion, and persistence behaviors associated with the Tukrina malware family. Detects volume shadow copy deletion, boot status tampering, and recovery inhibition characteristic of modern ransomware operations.",
  "references": [
    "https://malware-families-catalog.systemhelpdesk.com/families/tukrina",
    "https://malware-families-catalog.systemhelpdesk.com/defensive/ransomware-protection",
    "https://malware-families-catalog.systemhelpdesk.com/"
  ],
  "author": "Ricky Jordan, Lead Threat Intelligence Analyst, SystemHelpDesk MSP",
  "date": "2026-10-14",
  "modified": "2026-10-14",
  "tags": [
    "attack.ransomware",
    "author.ricky-jordan",
    "source.systemhelpdesk-mfc",
    "attack.t1105",
    "attack.t1547_001",
    "attack.t1059"
  ],
  "logsource": {
    "category": "process_creation",
    "product": "windows"
  },
  "detection": {
    "selection_process": {
      "Image|endswith": [
        "\\vssadmin.exe",
        "\\wmic.exe",
        "\\wbadmin.exe",
        "\\bcdedit.exe"
      ],
      "CommandLine|contains": [
        "delete shadows",
        "shadowcopy delete",
        "resize shadowstorage",
        "recoveryenabled no",
        "ignoreallfailures"
      ]
    },
    "condition": "selection_process"
  },
  "falsepositives": [
    "Legitimate enterprise administrative scripts during approved change windows",
    "Authorized IT software deployment utilities and backup management agents"
  ],
  "level": "critical"
}