{
  "author": "ckeller@fusioncybersecurity.us",
  "cat": "Sensitive Process Accessed",
  "detect": {
    "event": {
      "EVENTS": [
        {
          "event": {
            "BASE_ADDRESS": 140702525030400,
            "COMMAND_LINE": "C:\\WINDOWS\\system32\\lsass.exe",
            "CREATION_TIME": 1773245868875,
            "FILE_IS_SIGNED": 1,
            "FILE_PATH": "C:\\WINDOWS\\system32\\lsass.exe",
            "HASH": "055a1226a769948a79ed0972bdee2d91937c4b521e0b9046f9b8ccc63d110115",
            "MEMORY_USAGE": 19705856,
            "PARENT": {
              "FILE_IS_SIGNED": 1,
              "FILE_PATH": "\\Device\\HarddiskVolume3\\Windows\\System32\\wininit.exe",
              "HASH": "ba26910be549b8700c08fbe2f160952288864470a30dd35c3c6b7782f7dbf857",
              "MEMORY_USAGE": 7323648,
              "PARENT_PROCESS_ID": 720,
              "PROCESS_ID": 840,
              "THIS_ATOM": "58b1f2a11a942a48999a6fbd69b1964c",
              "THREADS": 1,
              "TIMESTAMP": 1773246028618,
              "USER_NAME": "NT AUTHORITY\\SYSTEM"
            },
            "PARENT_PROCESS_ID": 840,
            "PROCESS_ID": 980,
            "THREADS": 16,
            "USER_NAME": "NT AUTHORITY\\SYSTEM"
          },
          "routing": {
            "arch": 2,
            "did": "",
            "event_id": "f1fe5251-1ba2-456b-951e-3e9bdec5a899",
            "event_time": 1773246029212,
            "event_type": "EXISTING_PROCESS",
            "ext_ip": "23.128.32.10",
            "hostname": "desktop-3nfb237",
            "iid": "b2cd59fc-d09d-49e0-a9f2-1fd79ee9c175",
            "int_ip": "192.168.50.40",
            "latency": 1222208941,
            "moduleid": 2,
            "oid": "d3541070-8b0e-4663-8a6a-aa0727aacd36",
            "parent": "58b1f2a11a942a48999a6fbd69b1964c",
            "plat": 268435456,
            "sid": "ed8f7c3f-3a1a-493e-8fa4-35eb8c30b136",
            "tags": [
              "fusion-soc-alert",
              "fusion-soc-case",
              "fusion-soc-pulled",
              "fusion-soc-triage",
              "fusionsoc-critical",
              "fusionsoc-high",
              "fusionsoc-investigated",
              "qucikbooks",
              "windows",
              "yara_detection_memory"
            ],
            "this": "b2fe617fb2365f162bc5846069b1964d"
          }
        },
        {
          "event": {
            "ACCESS_FLAGS": 2097151,
            "PARENT_PROCESS_ID": 4,
            "PROCESS_ID": 980,
            "SOURCE": {
              "MEMORY_USAGE": 1658880,
              "PARENT_PROCESS_ID": 0,
              "PROCESS_ID": 4,
              "THIS_ATOM": "eb3d8e0e5521ebfea94a557969b1964c",
              "THREADS": 209,
              "TIMESTAMP": 1773246028555,
              "USER_NAME": "NT AUTHORITY\\SYSTEM"
            },
            "TARGET": {
              "BASE_ADDRESS": 140702525030400,
              "COMMAND_LINE": "C:\\WINDOWS\\system32\\lsass.exe",
              "CREATION_TIME": 1773245868875,
              "FILE_IS_SIGNED": 1,
              "FILE_PATH": "C:\\WINDOWS\\system32\\lsass.exe",
              "HASH": "055a1226a769948a79ed0972bdee2d91937c4b521e0b9046f9b8ccc63d110115",
              "MEMORY_USAGE": 19705856,
              "PARENT_ATOM": "58b1f2a11a942a48999a6fbd69b1964c",
              "PARENT_PROCESS_ID": 840,
              "PROCESS_ID": 980,
              "THIS_ATOM": "b2fe617fb2365f162bc5846069b1964d",
              "THREADS": 16,
              "TIMESTAMP": 1773246029212,
              "USER_NAME": "NT AUTHORITY\\SYSTEM"
            }
          },
          "routing": {
            "arch": 2,
            "did": "",
            "event_id": "78e9d2a5-a707-44f6-bbba-a8505cdcd73c",
            "event_time": 1774468235848,
            "event_type": "REMOTE_PROCESS_HANDLE",
            "ext_ip": "23.128.32.10",
            "hostname": "desktop-3nfb237",
            "iid": "b2cd59fc-d09d-49e0-a9f2-1fd79ee9c175",
            "int_ip": "192.168.50.40",
            "latency": 2305,
            "moduleid": 2,
            "oid": "d3541070-8b0e-4663-8a6a-aa0727aacd36",
            "parent": "eb3d8e0e5521ebfea94a557969b1964c",
            "plat": 268435456,
            "sid": "ed8f7c3f-3a1a-493e-8fa4-35eb8c30b136",
            "tags": [
              "fusion-soc-alert",
              "fusion-soc-case",
              "fusion-soc-pulled",
              "fusion-soc-triage",
              "fusionsoc-critical",
              "fusionsoc-high",
              "fusionsoc-investigated",
              "qucikbooks",
              "windows",
              "yara_detection_memory"
            ],
            "target": "b2fe617fb2365f162bc5846069b1964d",
            "this": "0b3ac7269ee237f65bb74d4169c43c8c"
          }
        }
      ]
    },
    "routing": {
      "arch": 2,
      "did": "",
      "event_id": "47f8102b-9f36-4677-b4aa-dc12fdc424a5",
      "event_time": 1774468236348,
      "event_type": "SENSITIVE_PROCESS_ACCESS",
      "ext_ip": "23.128.32.10",
      "hostname": "desktop-3nfb237",
      "iid": "b2cd59fc-d09d-49e0-a9f2-1fd79ee9c175",
      "int_ip": "192.168.50.40",
      "latency": 1805,
      "moduleid": 2,
      "oid": "d3541070-8b0e-4663-8a6a-aa0727aacd36",
      "parent": "eb3d8e0e5521ebfea94a557969b1964c",
      "plat": 268435456,
      "sid": "ed8f7c3f-3a1a-493e-8fa4-35eb8c30b136",
      "tags": [
        "fusion-soc-alert",
        "fusion-soc-case",
        "fusion-soc-pulled",
        "fusion-soc-triage",
        "fusionsoc-critical",
        "fusionsoc-high",
        "fusionsoc-investigated",
        "qucikbooks",
        "windows",
        "yara_detection_memory"
      ],
      "target": "b2fe617fb2365f162bc5846069b1964d",
      "this": "8bfbdad7abd4dd40b91f8a5769c43c8c"
    }
  },
  "detect_id": "b72f9e46-8e19-4cd9-a894-7b2e69c43c8e",
  "gen_time": 1774468238153,
  "link": "https://app.limacharlie.io/orgs/d3541070-8b0e-4663-8a6a-aa0727aacd36/sensors/ed8f7c3f-3a1a-493e-8fa4-35eb8c30b136/timeline?time=1774468236\u0026selected=8bfbdad7abd4dd40b91f8a5769c43c8c",
  "namespace": "general",
  "routing": {
    "arch": 2,
    "did": "",
    "event_id": "47f8102b-9f36-4677-b4aa-dc12fdc424a5",
    "event_time": 1774468236348,
    "event_type": "SENSITIVE_PROCESS_ACCESS",
    "ext_ip": "23.128.32.10",
    "hostname": "desktop-3nfb237",
    "iid": "b2cd59fc-d09d-49e0-a9f2-1fd79ee9c175",
    "int_ip": "192.168.50.40",
    "latency": 1805,
    "moduleid": 2,
    "oid": "d3541070-8b0e-4663-8a6a-aa0727aacd36",
    "parent": "eb3d8e0e5521ebfea94a557969b1964c",
    "plat": 268435456,
    "sid": "ed8f7c3f-3a1a-493e-8fa4-35eb8c30b136",
    "tags": [
      "fusion-soc-alert",
      "fusion-soc-case",
      "fusion-soc-pulled",
      "fusion-soc-triage",
      "fusionsoc-critical",
      "fusionsoc-high",
      "fusionsoc-investigated",
      "qucikbooks",
      "windows",
      "yara_detection_memory"
    ],
    "target": "b2fe617fb2365f162bc5846069b1964d",
    "this": "8bfbdad7abd4dd40b91f8a5769c43c8c"
  },
  "source": "d3541070-8b0e-4663-8a6a-aa0727aacd36.b2cd59fc-d09d-49e0-a9f2-1fd79ee9c175.ed8f7c3f-3a1a-493e-8fa4-35eb8c30b136.10000000.2",
  "source_rule": "general.Sensitive Process Accessed",
  "ts": 1774468238000
}

{
  "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": 72
      }
    },
    {
      "malicious": false,
      "provider": "virustotal",
      "reputation": 10,
      "stats": {
        "confirmed-timeout": 0,
        "failure": 1,
        "harmless": 0,
        "malicious": 0,
        "suspicious": 0,
        "timeout": 0,
        "type-unsupported": 4,
        "undetected": 71
      }
    }
  ]
}

{
  "confidence": 0.633,
  "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": 23,
  "severity": "high",
  "summary": "**Vote: MAJORITY (2/3 -\u003e FALSE POSITIVE)**\n\n### \ud83e\udd16 qwen3.5:4b Analysis (Secondary + RAG)\n**Verdict:** false_positive | **Confidence:** 0.95\nThe detection event flags lsass.exe access, but the process is a known Microsoft-signed system binary running from its expected location in System32 with no suspicious parent-child relationships or anomalous behavior detected.\n\n**IOC Analysis:** lsass.exe is a legitimate Windows system process responsible for security authentication. The file path matches the expected location (C:\\WINDOWS\\system32\\), the binary is signed, and historical analyst feedback consistently marks this rule as false positive for standard system activity.\n\n---\n\n### \ud83e\udd16 deepseek-r1:8b Analysis (Secondary + RAG)\n**Verdict:** false_positive | **Confidence:** 0.95\nThe detection event involves a legitimate Windows system process accessing LSASS.EXE, which is a standard binary in the System32 directory. No malicious indicators or suspicious activity were found in the investigation.\n\n**IOC Analysis:** The FILE_PATH \u0027C:\\WINDOWS\\system32\\lsass.exe\u0027 is a known Windows system binary located in the expected directory. It is signed and spawned from \u0027C:\\WINDOWS\\system32\\wininit.exe\u0027, another legitimate system process, confirming it is benign. The HASH matches a known Microsoft-signed binary.",
  "verdict": "false_positive",
  "voting": {
    "auto_action": "manual_review",
    "mode": "majority",
    "total_models": 3,
    "vote_summary": [
      "gemini-cli: true_positive (medium, 0% confidence)",
      "qwen3.5:4b +RAG: false_positive (informational, 95% confidence)",
      "deepseek-r1:8b +RAG: false_positive (informational, 95% confidence)"
    ],
    "votes": [
      {
        "confidence": 0.0,
        "model": "gemini-cli",
        "verdict": "true_positive"
      },
      {
        "confidence": 0.95,
        "had_rag": true,
        "model": "qwen3.5:4b",
        "verdict": "false_positive"
      },
      {
        "confidence": 0.95,
        "had_rag": true,
        "model": "deepseek-r1:8b",
        "verdict": "false_positive"
      }
    ],
    "winning_count": 2,
    "winning_verdict": "false_positive"
  }
}