{
  "author": "_ext-sigma-7a14fbc3-54d9-4b4d-8700-61eddada04f0[bulk][segment]",
  "cat": "Directory Removal Via Rmdir",
  "detect": {
    "event": {
      "BASE_ADDRESS": 140700731375616,
      "COMMAND_LINE": "\"C:\\Windows\\System32\\cmd.exe\" /q /c rmdir /s /q \"C:\\Users\\Joy Howell\\AppData\\Local\\Microsoft\\OneDrive\\26.070.0414.0001_1\"",
      "FILE_IS_SIGNED": 1,
      "FILE_PATH": "C:\\Windows\\System32\\cmd.exe",
      "HASH": "d5697fef6995e992b9232a2b19665a297743427316c7225a5b772f0032f20fca",
      "MEMORY_USAGE": 4325376,
      "PARENT": {
        "BASE_ADDRESS": 140697401819136,
        "COMMAND_LINE": "\"C:\\Windows\\explorer.exe\" /LOADSAVEDWINDOWS",
        "FILE_IS_SIGNED": 1,
        "FILE_PATH": "C:\\Windows\\explorer.exe",
        "HASH": "a91761acf6de6d350c72ebe8025da961dc3902e5fe5a47d7a56303444a124a81",
        "MEMORY_USAGE": 52260864,
        "PARENT_ATOM": "a29f43604d991951f1da10656a18ab1b",
        "PARENT_PROCESS_ID": 109980,
        "PROCESS_ID": 113284,
        "THIS_ATOM": "8bfbf87347f88dc5b219a8736a18ab2f",
        "THREADS": 12,
        "TIMESTAMP": 1780001583136,
        "USER_NAME": "DESKTOP-ATSEPSK\\Joy Howell"
      },
      "PARENT_PROCESS_ID": 113284,
      "PROCESS_ID": 108452,
      "USER_NAME": "DESKTOP-ATSEPSK\\Joy Howell"
    },
    "routing": {
      "arch": 2,
      "did": "",
      "event_id": "8221b96c-d8ec-435e-ac3a-4ce1c711c0d6",
      "event_time": 1780001786208,
      "event_type": "NEW_PROCESS",
      "ext_ip": "23.128.32.10",
      "hostname": "desktop-atsepsk",
      "iid": "b2cd59fc-d09d-49e0-a9f2-1fd79ee9c175",
      "int_ip": "192.168.50.200",
      "latency": 1918,
      "moduleid": 2,
      "oid": "d3541070-8b0e-4663-8a6a-aa0727aacd36",
      "parent": "8bfbf87347f88dc5b219a8736a18ab2f",
      "plat": 268435456,
      "sid": "8f3a47be-5629-4c66-921d-17c39ed07e87",
      "tags": [
        "fusion-soc-alert",
        "fusion-soc-case",
        "fusion-soc-pulled",
        "fusion-soc-triage",
        "fusionsoc-critical",
        "fusionsoc-high",
        "fusionsoc-investigated",
        "joys",
        "windows",
        "yara_detection_memory"
      ],
      "this": "da1d2aeb72b1dc39276a08226a18abfb"
    }
  },
  "detect_id": "00503c38-da81-4298-8b77-9f2f6a18abfc",
  "detect_mtd": {
    "author": "frack113",
    "description": "Detects execution of the builtin \"rmdir\" command in order to delete directories.\nAdversaries may delete files left behind by the actions of their intrusion activity.\nMalware, tools, or other non-native files dropped or created on a system by an adversary may leave traces to indicate to what was done within a network and how.\nRemoval of these files can occur during an intrusion, or as part of a post-intrusion process to minimize the adversary\u0027s footprint.\n",
    "falsepositives": [
      "Unknown"
    ],
    "level": "low",
    "references": [
      "https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1070.004/T1070.004.md",
      "https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/erase"
    ],
    "tags": [
      "attack.stealth",
      "attack.t1070.004"
    ]
  },
  "gen_time": 1780001788258,
  "link": "https://app.limacharlie.io/orgs/d3541070-8b0e-4663-8a6a-aa0727aacd36/sensors/8f3a47be-5629-4c66-921d-17c39ed07e87/timeline?time=1780001786\u0026selected=da1d2aeb72b1dc39276a08226a18abfb",
  "namespace": "general",
  "routing": {
    "arch": 2,
    "did": "",
    "event_id": "8221b96c-d8ec-435e-ac3a-4ce1c711c0d6",
    "event_time": 1780001786208,
    "event_type": "NEW_PROCESS",
    "ext_ip": "23.128.32.10",
    "hostname": "desktop-atsepsk",
    "iid": "b2cd59fc-d09d-49e0-a9f2-1fd79ee9c175",
    "int_ip": "192.168.50.200",
    "latency": 1918,
    "moduleid": 2,
    "oid": "d3541070-8b0e-4663-8a6a-aa0727aacd36",
    "parent": "8bfbf87347f88dc5b219a8736a18ab2f",
    "plat": 268435456,
    "sid": "8f3a47be-5629-4c66-921d-17c39ed07e87",
    "tags": [
      "fusion-soc-alert",
      "fusion-soc-case",
      "fusion-soc-pulled",
      "fusion-soc-triage",
      "fusionsoc-critical",
      "fusionsoc-high",
      "fusionsoc-investigated",
      "joys",
      "windows",
      "yara_detection_memory"
    ],
    "this": "da1d2aeb72b1dc39276a08226a18abfb"
  },
  "rule_tags": [
    "ext:ext-sigma",
    "attack.stealth",
    "attack.t1070.004"
  ],
  "source": "d3541070-8b0e-4663-8a6a-aa0727aacd36.b2cd59fc-d09d-49e0-a9f2-1fd79ee9c175.8f3a47be-5629-4c66-921d-17c39ed07e87.10000000.2",
  "source_rule": "service.windows_process_creation/proc_creation_win_cmd_rmdir_execution",
  "ts": 1780001790000
}

{
  "virustotal": {
    "malicious": false,
    "provider": "virustotal",
    "reputation": 0,
    "stats": {
      "confirmed-timeout": 0,
      "failure": 0,
      "harmless": 0,
      "malicious": 0,
      "suspicious": 0,
      "timeout": 0,
      "type-unsupported": 4,
      "undetected": 71
    }
  }
}

{
  "confidence": 0.0,
  "false_positive_reason": null,
  "investigation_questions": [],
  "ioc_analysis": "",
  "iocs_extracted": [],
  "mitre_techniques": [],
  "recommended_actions": [
    "Manual analyst review required \u2014 AI models (majority)",
    "Manual review required"
  ],
  "risk_score": 50,
  "severity": "high",
  "summary": "**Vote: MAJORITY (1/1 -\u003e TRUE POSITIVE)**\n\n### \ud83e\udd16 qwen3.5:4b Analysis (Secondary)\nFailed or timed out.\n\n---\n\n### \ud83e\udd16 deepseek-r1:16b Analysis (Secondary)\nFailed or timed out.\n\n---\n\n### \ud83e\udd16 gemma3:4b Analysis (Secondary)\nFailed or timed out.",
  "verdict": "true_positive",
  "voting": {
    "auto_action": "manual_review",
    "mode": "majority",
    "total_models": 1,
    "vote_summary": [
      "qwen3.5:35b: true_positive (medium, 0% confidence)"
    ],
    "votes": [
      {
        "confidence": 0.0,
        "model": "qwen3.5:35b",
        "verdict": "true_positive"
      }
    ],
    "winning_count": 1,
    "winning_verdict": "true_positive"
  }
}