high investigating false positive

๐Ÿท๏ธ Analyst Verdict Classification

๐Ÿค– AI Analysis

๐Ÿ”” Detections (1)

fusionsoc-t1547-boot-logon-autostart-execution high
Rule: general.fusionsoc-t1547-boot-logon-autostart-execution
Hostname: desktop-atsepsk ยท Sensor: 8f3a47be-5629-4c...
Event Type: NEW_PROCESS
Confidence: 62% ยท Verdict: false positive
Event Data:
BASE_ADDRESS:
140698254573568
COMMAND_LINE:
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --flag-switches-begin --flag-switches-end --no-startup-window
FILE_IS_SIGNED:
1
FILE_PATH:
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
HASH:
b4ea52196967c69a61c114c9934950f511f26bded473107e1b6c37cd8a22bf9e
MEMORY_USAGE:
8769536
PARENT:
{'BASE_ADDRESS': 140698254573568, 'COMMAND_LINE': '"C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\msedge.exe" --flag-switches-begin --flag-switches-end --no-startup-window', 'FILE_IS_SIGNED': 1, 'FILE_PATH': 'C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\msedge.exe', 'HASH': 'b4ea52196967c69a61c114c9934950f511f26bded473107e1b6c37cd8a22bf9e', 'MEMORY_USAGE': 142729216, 'PARENT_ATOM': '5c05f4a5d9eb0399ef10e8e46a13dedf', 'PARENT_PROCESS_ID': 79044, 'PROCESS_ID': 89400, 'THIS_ATOM': 'bf886ef8fd509755f2a54d6f6a141720', 'THREADS': 61, 'TIMESTAMP': 1779701535983, 'USER_NAME': 'DESKTOP-ATSEPSK\\Joy Howell'}
PARENT_PROCESS_ID:
89400
PROCESS_ID:
74292
THREADS:
4
USER_NAME:
DESKTOP-ATSEPSK\Joy Howell
Analyst Declaration:
๐Ÿ“„ Raw Detection JSON
{
  "author": "turbo-threads-api",
  "cat": "fusionsoc-t1547-boot-logon-autostart-execution",
  "detect": {
    "event": {
      "BASE_ADDRESS": 140698254573568,
      "COMMAND_LINE": "\"C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\msedge.exe\" --flag-switches-begin --flag-switches-end --no-startup-window",
      "FILE_IS_SIGNED": 1,
      "FILE_PATH": "C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\msedge.exe",
      "HASH": "b4ea52196967c69a61c114c9934950f511f26bded473107e1b6c37cd8a22bf9e",
      "MEMORY_USAGE": 8769536,
      "PARENT": {
        "BASE_ADDRESS": 140698254573568,
        "COMMAND_LINE": "\"C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\msedge.exe\" --flag-switches-begin --flag-switches-end --no-startup-window",
        "FILE_IS_SIGNED": 1,
        "FILE_PATH": "C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\msedge.exe",
        "HASH": "b4ea52196967c69a61c114c9934950f511f26bded473107e1b6c37cd8a22bf9e",
        "MEMORY_USAGE": 142729216,
        "PARENT_ATOM": "5c05f4a5d9eb0399ef10e8e46a13dedf",
        "PARENT_PROCESS_ID": 79044,
        "PROCESS_ID": 89400,
        "THIS_ATOM": "bf886ef8fd509755f2a54d6f6a141720",
        "THREADS": 61,
        "TIMESTAMP": 1779701535983,
        "USER_NAME": "DESKTOP-ATSEPSK\\Joy Howell"
      },
      "PARENT_PROCESS_ID": 89400,
      "PROCESS_ID": 74292,
      "THREADS": 4,
      "USER_NAME": "DESKTOP-ATSEPSK\\Joy Howell"
    },
    "routing": {
      "arch": 2,
      "did": "",
      "event_id": "390431f1-ef59-41fc-8c3f-5f6c69811513",
      "event_time": 1779715936728,
      "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": 586,
      "moduleid": 2,
      "oid": "d3541070-8b0e-4663-8a6a-aa0727aacd36",
      "parent": "bf886ef8fd509755f2a54d6f6a141720",
      "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": "4b2f8ec4701a4e67d65b8a956a144f60"
    }
  },
  "detect_id": "f6bada47-0d21-46a8-b63a-5b596a144f61",
  "gen_time": 1779715937315,
  "link": "https://app.limacharlie.io/orgs/d3541070-8b0e-4663-8a6a-aa0727aacd36/sensors/8f3a47be-5629-4c66-921d-17c39ed07e87/timeline?time=1779715936\u0026selected=4b2f8ec4701a4e67d65b8a956a144f60",
  "namespace": "general",
  "routing": {
    "arch": 2,
    "did": "",
    "event_id": "390431f1-ef59-41fc-8c3f-5f6c69811513",
    "event_time": 1779715936728,
    "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": 586,
    "moduleid": 2,
    "oid": "d3541070-8b0e-4663-8a6a-aa0727aacd36",
    "parent": "bf886ef8fd509755f2a54d6f6a141720",
    "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": "4b2f8ec4701a4e67d65b8a956a144f60"
  },
  "rule_tags": [
    "attack.t1547",
    "attack.persistence"
  ],
  "source": "d3541070-8b0e-4663-8a6a-aa0727aacd36.b2cd59fc-d09d-49e0-a9f2-1fd79ee9c175.8f3a47be-5629-4c66-921d-17c39ed07e87.10000000.2",
  "source_rule": "general.fusionsoc-t1547-boot-logon-autostart-execution",
  "ts": 1779715937000
}
๐ŸŒ Threat Intel JSON
{
  "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
    }
  }
}
๐Ÿค– Triage JSON
{
  "confidence": 0.617,
  "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": 40,
  "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 detected process is Microsoft Edge (msedge.exe) running from its expected location, which is common and benign.\n\n**IOC Analysis:** The file path, hash, and signature indicate that this is a legitimate instance of Microsoft Edge. No suspicious activity was observed.\n\n---\n\n### \ud83e\udd16 deepseek-r1:16b Analysis (Secondary + RAG)\n**Verdict:** false_positive | **Confidence:** 0.9\nThe detection event involves the Microsoft Edge executable (msedge.exe) running from its legitimate installation directory. The file is signed by Microsoft, and the process is part of the user\u0027s normal activity. Historical data shows similar events being marked as false positives, indicating this is likely a benign activity.\n\n**IOC Analysis:** The FILE_PATH is located in C:\\Program Files (x86)\\Microsoft\\Edge, which is a known legitimate software installation directory. The file is signed (FILE_IS_SIGNED=1), and the hash matches a known Microsoft-signed binary. The process is running under a user account and is part of the expected Edge browser operations.\n\n---\n\n### \ud83e\udd16 gemma3:4b Analysis (Secondary)\nFailed or timed out.",
  "verdict": "false_positive",
  "voting": {
    "auto_action": "manual_review",
    "mode": "majority",
    "total_models": 3,
    "vote_summary": [
      "qwen3.5:35b: true_positive (medium, 0% confidence)",
      "qwen3.5:4b +RAG: false_positive (low, 95% confidence)",
      "deepseek-r1:16b +RAG: false_positive (medium, 90% confidence)"
    ],
    "votes": [
      {
        "confidence": 0.0,
        "model": "qwen3.5:35b",
        "verdict": "true_positive"
      },
      {
        "confidence": 0.95,
        "had_rag": true,
        "model": "qwen3.5:4b",
        "verdict": "false_positive"
      },
      {
        "confidence": 0.9,
        "had_rag": true,
        "model": "deepseek-r1:16b",
        "verdict": "false_positive"
      }
    ],
    "winning_count": 2,
    "winning_verdict": "false_positive"
  }
}

โš™๏ธ Response Actions

Action Target Status Result
tag 8f3a47be-5629-4c66-921d-17c39ed07e87:fusionsoc-investigated executed Tag applied
recommended Manual review required executed General Activity Sweep: 0 events found

๐Ÿ“ Add Note

๐Ÿ’ฌ Notes (3)

๐Ÿค– FusionSOC AI 2026-05-25T13:41
๐Ÿค– FusionSOC AI 2026-05-25T13:41
๐Ÿค– FusionSOC AI 2026-05-25T13:41

๐Ÿ“œ Timeline

2026-05-25T13:41:34
FusionSOC AI
Note by FusionSOC AI: ## ๐Ÿ—ณ๏ธ Secondary Vote (RAG-Enhanced) **Vote:** MAJORITY (2/3 โ†’ FALSE POSITIVE) - qwen3.5:35b: true_positive (medium, 0% ...
2026-05-25T13:41:17
FusionSOC AI
Status changed: open โ†’ investigating
2026-05-25T13:41:17
FusionSOC
Action recommended โ†’ executed: General Activity Sweep: 0 events found
2026-05-25T13:41:17
FusionSOC AI
Note by FusionSOC AI: ## ๐Ÿ” General Activity Sweep **Action:** Manual review required **Sensor:** `8f3a47be-5629-4c...` **Time Window:** +/- 2 ...
2026-05-25T13:41:16
FusionSOC
Response action queued: recommended on Manual review required
2026-05-25T13:41:16
FusionSOC
Action tag โ†’ executed: Tag applied
2026-05-25T13:41:16
FusionSOC
Response action queued: tag on 8f3a47be-5629-4c66-921d-17c39ed07e87:fusionsoc-investigated
2026-05-25T13:41:16
FusionSOC AI
Detection f6bada47-0d21-46a8-b63a-5b596a144f61 triaged as true_positive (medium severity, confidence: 0%)
2026-05-25T13:41:16
FusionSOC AI
Case created from detection: general.fusionsoc-t1547-boot-logon-autostart-execution