{
  "author": "ckeller@fusioncybersecurity.us",
  "cat": "New Code Atypical Path",
  "detect": {
    "event": {
      "FILE_PATH": "C:\\Windows\\Temp\\{B0C4866C-CCBD-4940-A342-58A2AF4D0B34}\\.be\\VC_redist.x64.exe",
      "HASH": "568c9ba533624084ea18f7a562b4aa2249ed4e41281524a061a0d0b1008cf6bd",
      "PROCESS_ID": 16188
    },
    "routing": {
      "arch": 2,
      "did": "",
      "event_id": "cfbd012c-9c42-4df6-b188-f9cc34722f59",
      "event_time": 1773605360068,
      "event_type": "NEW_DOCUMENT",
      "ext_ip": "23.128.32.10",
      "hostname": "desktop-3nfb237",
      "iid": "b2cd59fc-d09d-49e0-a9f2-1fd79ee9c175",
      "int_ip": "192.168.50.40",
      "latency": -97,
      "moduleid": 2,
      "oid": "d3541070-8b0e-4663-8a6a-aa0727aacd36",
      "parent": "0d72694aec76538ae00a754069b711e7",
      "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": "3de55ec45e9e417aea77332669b711f0"
    }
  },
  "detect_id": "dfb9bd79-3b4c-482c-af86-927769b711ef",
  "gen_time": 1773605359976,
  "link": "https://app.limacharlie.io/orgs/d3541070-8b0e-4663-8a6a-aa0727aacd36/sensors/ed8f7c3f-3a1a-493e-8fa4-35eb8c30b136/timeline?time=1773605360\u0026selected=3de55ec45e9e417aea77332669b711f0",
  "namespace": "general",
  "routing": {
    "arch": 2,
    "did": "",
    "event_id": "cfbd012c-9c42-4df6-b188-f9cc34722f59",
    "event_time": 1773605360068,
    "event_type": "NEW_DOCUMENT",
    "ext_ip": "23.128.32.10",
    "hostname": "desktop-3nfb237",
    "iid": "b2cd59fc-d09d-49e0-a9f2-1fd79ee9c175",
    "int_ip": "192.168.50.40",
    "latency": -97,
    "moduleid": 2,
    "oid": "d3541070-8b0e-4663-8a6a-aa0727aacd36",
    "parent": "0d72694aec76538ae00a754069b711e7",
    "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": "3de55ec45e9e417aea77332669b711f0"
  },
  "source": "d3541070-8b0e-4663-8a6a-aa0727aacd36.b2cd59fc-d09d-49e0-a9f2-1fd79ee9c175.ed8f7c3f-3a1a-493e-8fa4-35eb8c30b136.10000000.2",
  "source_rule": "general.NEW FILE WRITE BYTES SAMPLE GRAB",
  "ts": 1773605359000
}

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

{
  "confidence": 0.95,
  "false_positive_reason": "VC_redist.x64.exe is a legitimate Microsoft installer that runs from Windows Temp directories. The detection rule flags new file writes but does not account for common legitimate software installers.",
  "investigation_questions": [
    "Is the application requiring Visual C++ runtime libraries?",
    "Has this file been executed by a legitimate user or service?"
  ],
  "ioc_analysis": "The detected file VC_redist.x64.exe is a well-known Microsoft Visual C++ redistributable installer, commonly used for software development or application deployment. It is benign when executed by legitimate applications requiring the runtime libraries.",
  "iocs_extracted": [
    {
      "type": "file_path",
      "value": "C:\\Windows\\Temp\\{B0C4866C-CCBD-4940-A342-58A2AF4D0B34}\\\\.be\\VC_redist.x64.exe"
    },
    {
      "type": "file_name",
      "value": "VC_redist.x64.exe"
    }
  ],
  "mitre_techniques": [],
  "recommended_actions": [
    "Manual analyst review required \u2014 AI models disagree or one model failed",
    "Allow this process type in future detections",
    "Document as known false positive for VC redistributables"
  ],
  "risk_score": 10,
  "severity": "high",
  "summary": "**Vote: SPLIT (1/2 -\u003e SUSPICIOUS)**\n\n### \u264a Gemini Analysis (Primary)\nFailed or timed out.\n\n---\n\n### \ud83e\udd16 Qwen Analysis (Secondary)\n**Verdict:** false_positive | **Confidence:** 0.95\nThis detection is a false positive caused by Microsoft Visual C++ Redistributable installer running from a temporary directory. The process name and file extension are legitimate system components.\n\n**IOC Analysis:** The detected file VC_redist.x64.exe is a well-known Microsoft Visual C++ redistributable installer, commonly used for software development or application deployment. It is benign when executed by legitimate applications requiring the runtime libraries.",
  "verdict": "suspicious",
  "voting": {
    "auto_action": "manual_review",
    "mode": "split",
    "total_models": 2,
    "vote_summary": [
      "qwen3.5:4b: false_positive (low, 95% confidence)"
    ],
    "votes": [],
    "winning_count": 1,
    "winning_verdict": "suspicious"
  }
}