{
  "author": "ckeller@fusioncybersecurity.us",
  "cat": "YARA Detection in Memory - Windows_Trojan_Generic_9997489c",
  "detect": {
    "event": {
      "PROCESS": {
        "BASE_ADDRESS": 140702246764544,
        "COMMAND_LINE": "\"C:\\Program Files\\Bitdefender\\Bitdefender Security\\bdservicehost.exe\" \"settings/services/configs/bdshieldsrv_config.json\"",
        "FILE_PATH": "C:\\Program Files\\Bitdefender\\Bitdefender Security\\bdservicehost.exe",
        "MEMORY_USAGE": 2067017728,
        "PARENT_PROCESS_ID": 1680,
        "PROCESS_ID": 6096,
        "THREADS": 278,
        "USER_NAME": "NT AUTHORITY\\SYSTEM"
      },
      "PROCESS_ID": 6096,
      "RULE_NAME": "Windows_Trojan_Generic_9997489c"
    },
    "routing": {
      "arch": 2,
      "did": "",
      "event_id": "ac1bd264-ee9e-4b9c-b675-0d903cc5db95",
      "event_time": 1773939299836,
      "event_type": "YARA_DETECTION",
      "ext_ip": "23.128.32.10",
      "hostname": "desktop-atsepsk",
      "iid": "b2cd59fc-d09d-49e0-a9f2-1fd79ee9c175",
      "int_ip": "192.168.50.200",
      "latency": 135,
      "moduleid": 2,
      "oid": "d3541070-8b0e-4663-8a6a-aa0727aacd36",
      "parent": "0e216ebc38526920dcc17e5a69b2ef6f",
      "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": "f821446f9c2436931358610569bc2a63"
    }
  },
  "detect_id": "89aaa0b9-afa5-4802-a0ed-352969bc2a63",
  "gen_time": 1773939299972,
  "link": "https://app.limacharlie.io/orgs/d3541070-8b0e-4663-8a6a-aa0727aacd36/sensors/8f3a47be-5629-4c66-921d-17c39ed07e87/timeline?time=1773939299\u0026selected=f821446f9c2436931358610569bc2a63",
  "namespace": "general",
  "routing": {
    "arch": 2,
    "did": "",
    "event_id": "ac1bd264-ee9e-4b9c-b675-0d903cc5db95",
    "event_time": 1773939299836,
    "event_type": "YARA_DETECTION",
    "ext_ip": "23.128.32.10",
    "hostname": "desktop-atsepsk",
    "iid": "b2cd59fc-d09d-49e0-a9f2-1fd79ee9c175",
    "int_ip": "192.168.50.200",
    "latency": 135,
    "moduleid": 2,
    "oid": "d3541070-8b0e-4663-8a6a-aa0727aacd36",
    "parent": "0e216ebc38526920dcc17e5a69b2ef6f",
    "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": "f821446f9c2436931358610569bc2a63"
  },
  "source": "d3541070-8b0e-4663-8a6a-aa0727aacd36.b2cd59fc-d09d-49e0-a9f2-1fd79ee9c175.8f3a47be-5629-4c66-921d-17c39ed07e87.10000000.2",
  "source_rule": "general.YARA Detection in Memory",
  "ts": 1773939301000
}

{
  "confidence": 0.943,
  "false_positive_reason": "Security software process (Antivirus/EDR) flagged by a generic signature while performing legitimate protection activities.",
  "investigation_questions": [
    "Does this specific YARA rule (\u0027Windows_Trojan_Generic_9997489c\u0027) have a history of false positives with other security software?",
    "Were there any other suspicious events on this host at the time of the memory scan?"
  ],
  "ioc_analysis": "The file path \u0027C:\\Program Files\\Bitdefender\\Bitdefender Security\\bdservicehost.exe\u0027 is the standard and expected location for Bitdefender. The process is running as \u0027NT AUTHORITY\\SYSTEM\u0027 with a command line pointing to legitimate configuration files, which is consistent with normal operation.",
  "iocs_extracted": [
    "C:\\Program Files\\Bitdefender\\Bitdefender Security\\bdservicehost.exe"
  ],
  "mitre_techniques": [],
  "recommended_actions": [
    "Close case as false positive (unanimous AI verdict)",
    "Exclude \u0027bdservicehost.exe\u0027 from this specific YARA memory scanning rule to prevent further noise.",
    "Verify the digital signature of the binary on the host to confirm it is signed by Bitdefender."
  ],
  "risk_score": 10,
  "severity": "low",
  "summary": "**Vote: UNANIMOUS (3/3 -\u003e FALSE POSITIVE)**\n\n### \u264a gemini-cli Analysis (Primary)\n**Verdict:** false_positive | **Confidence:** 0.98\nThe detection flagged \u0027bdservicehost.exe\u0027, which is the legitimate core service process for Bitdefender Security. Generic YARA detections in the memory of security products are common false positives, often occurring when the antivirus engine is processing malware signatures or scanning malicious buffers.\n\n**IOC Analysis:** The file path \u0027C:\\Program Files\\Bitdefender\\Bitdefender Security\\bdservicehost.exe\u0027 is the standard and expected location for Bitdefender. The process is running as \u0027NT AUTHORITY\\SYSTEM\u0027 with a command line pointing to legitimate configuration files, which is consistent with normal operation.\n\n---\n\n### \ud83e\udd16 qwen3.5:4b Analysis (Secondary)\n**Verdict:** false_positive | **Confidence:** 0.95\nThe detection flagged Bitdefender\u0027s bdservicehost.exe as a Windows Trojan based on memory analysis, but the process is running from its expected location in Program Files and is signed by a known vendor.\n\n**IOC Analysis:** The process path C:\\Program Files\\Bitdefender\\Bitdefender Security\\bdservicehost.exe matches legitimate software installation locations. Bitdefender is a well-known antivirus vendor, and bdservicehost.exe is a standard component of their security suite responsible for shield services configuration.\n\n---\n\n### \ud83e\udd16 deepseek-r1:8b Analysis (Secondary)\n**Verdict:** false_positive | **Confidence:** 0.9\nThe detected process is bdservicehost.exe from Bitdefender, a legitimate antivirus service, and the YARA detection is likely a false positive due to generic rule matching.\n\n**IOC Analysis:** The FILE_PATH is located in C:\\Program Files\\, a standard directory for legitimate software, and Bitdefender is a trusted vendor. No malicious indicators were found, and the process is expected to be benign as it is part of antivirus functionality.",
  "verdict": "false_positive",
  "voting": {
    "auto_action": "auto_close_fp",
    "mode": "unanimous",
    "total_models": 3,
    "vote_summary": [
      "gemini-cli: false_positive (low, 98% confidence)",
      "qwen3.5:4b: false_positive (low, 95% confidence)",
      "deepseek-r1:8b: false_positive (low, 90% confidence)"
    ],
    "votes": [
      {
        "confidence": 0.98,
        "model": "gemini-cli",
        "verdict": "false_positive"
      },
      {
        "confidence": 0.95,
        "model": "qwen3.5:4b",
        "verdict": "false_positive"
      },
      {
        "confidence": 0.9,
        "model": "deepseek-r1:8b",
        "verdict": "false_positive"
      }
    ],
    "winning_count": 3,
    "winning_verdict": "false_positive"
  }
}