{
  "model_id": "SOC.054",
  "name": "Shred Command Usage",
  "description": "shred command used to securely delete files — uncommon in normal operations, common in anti-forensics.",
  "threshold": 0.7,
  "evaluations": [
    {
      "name": "Shred",
      "type": "comparison",
      "left": "event.raw.comm",
      "operator": "==",
      "right": "shred",
      "weight": 5
    }
  ],
  "actions": [
    {
      "type": "emit_alert",
      "reason": "shred command used — anti-forensic file deletion."
    }
  ],
  "mitre_tactics": [
    "Defense Evasion"
  ],
  "mitre_techniques": [
    "T1070.004",
    "T1485"
  ],
  "severity": "high",
  "observables": [
    "event.raw.cmdline",
    "event.actor.user"
  ]
}