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:
140695559340032
COMMAND_LINE:
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --startup-read-main-dll --metrics-shmem-handle=2984,i,13431950288504814358,7737595593006916133,524288 --field-trial-handle=2432,i,3389315629258739516,7229487729502493708,262144 --variations-seed-version --pseudonymization-salt-handle=2436,i,18095540997615368661,11873640638831413025,4 --trace-process-track-uuid=3190708990060038890 --mojo-platform-channel-handle=1740 /prefetch:13
FILE_IS_SIGNED:
1
FILE_PATH:
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
HASH:
47455576c6fb157a3a4ddd4ffa3a35d286cb2346d131d08bcaef873b15f5707b
MEMORY_USAGE:
20848640
PARENT:
{'BASE_ADDRESS': 140695559340032, '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': '47455576c6fb157a3a4ddd4ffa3a35d286cb2346d131d08bcaef873b15f5707b', 'MEMORY_USAGE': 158478336, 'PARENT_ATOM': '562a1648406fec4d386653956a0eed28', 'PARENT_PROCESS_ID': 68852, 'PROCESS_ID': 63200, 'THIS_ATOM': '19e075e5e961d5ca0f8767ed6a0f2569', 'THREADS': 65, 'TIMESTAMP': 1779377512446, 'USER_NAME': 'DESKTOP-ATSEPSK\\Joy Howell'}
PARENT_PROCESS_ID:
63200
PROCESS_ID:
70280
THREADS:
9
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": 140695559340032,
      "COMMAND_LINE": "\"C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\msedge.exe\" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --startup-read-main-dll --metrics-shmem-handle=2984,i,13431950288504814358,7737595593006916133,524288 --field-trial-handle=2432,i,3389315629258739516,7229487729502493708,262144 --variations-seed-version --pseudonymization-salt-handle=2436,i,18095540997615368661,11873640638831413025,4 --trace-process-track-uuid=3190708990060038890 --mojo-platform-channel-handle=1740 /prefetch:13",
      "FILE_IS_SIGNED": 1,
      "FILE_PATH": "C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\msedge.exe",
      "HASH": "47455576c6fb157a3a4ddd4ffa3a35d286cb2346d131d08bcaef873b15f5707b",
      "MEMORY_USAGE": 20848640,
      "PARENT": {
        "BASE_ADDRESS": 140695559340032,
        "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": "47455576c6fb157a3a4ddd4ffa3a35d286cb2346d131d08bcaef873b15f5707b",
        "MEMORY_USAGE": 158478336,
        "PARENT_ATOM": "562a1648406fec4d386653956a0eed28",
        "PARENT_PROCESS_ID": 68852,
        "PROCESS_ID": 63200,
        "THIS_ATOM": "19e075e5e961d5ca0f8767ed6a0f2569",
        "THREADS": 65,
        "TIMESTAMP": 1779377512446,
        "USER_NAME": "DESKTOP-ATSEPSK\\Joy Howell"
      },
      "PARENT_PROCESS_ID": 63200,
      "PROCESS_ID": 70280,
      "THREADS": 9,
      "USER_NAME": "DESKTOP-ATSEPSK\\Joy Howell"
    },
    "routing": {
      "arch": 2,
      "did": "",
      "event_id": "31740c50-a89e-4449-a233-2c07783e0d27",
      "event_time": 1779377512934,
      "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": 1020,
      "moduleid": 2,
      "oid": "d3541070-8b0e-4663-8a6a-aa0727aacd36",
      "parent": "19e075e5e961d5ca0f8767ed6a0f2569",
      "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": "1f754b91b8d160de6e448ba66a0f2569"
    }
  },
  "detect_id": "bc2cebe0-dc1a-4b06-b60b-ff9d6a0f2569",
  "gen_time": 1779377513956,
  "link": "https://app.limacharlie.io/orgs/d3541070-8b0e-4663-8a6a-aa0727aacd36/sensors/8f3a47be-5629-4c66-921d-17c39ed07e87/timeline?time=1779377512\u0026selected=1f754b91b8d160de6e448ba66a0f2569",
  "namespace": "general",
  "routing": {
    "arch": 2,
    "did": "",
    "event_id": "31740c50-a89e-4449-a233-2c07783e0d27",
    "event_time": 1779377512934,
    "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": 1020,
    "moduleid": 2,
    "oid": "d3541070-8b0e-4663-8a6a-aa0727aacd36",
    "parent": "19e075e5e961d5ca0f8767ed6a0f2569",
    "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": "1f754b91b8d160de6e448ba66a0f2569"
  },
  "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": 1779377516000
}
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": 33,
  "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:** 0.9\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 and hash match legitimate Microsoft Edge binaries, and the process is running from its expected directory. No suspicious activity was observed.\n\n---\n\n### \ud83e\udd16 deepseek-r1:16b Analysis (Secondary + RAG)\n**Verdict:** false_positive | **Confidence:** 0.95\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 normal Edge browser operations. Historical data shows similar events being marked as false positives.\n\n**IOC Analysis:** FILE_PATH is located in C:\\Program Files (x86)\\Microsoft\\Edge\\Application, which is a known legitimate location. FILE_IS_SIGNED is 1, indicating it\u0027s signed by Microsoft. The process is a normal part of 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, 90% confidence)",
      "deepseek-r1:16b +RAG: false_positive (medium, 95% confidence)"
    ],
    "votes": [
      {
        "confidence": 0.0,
        "model": "qwen3.5:35b",
        "verdict": "true_positive"
      },
      {
        "confidence": 0.9,
        "had_rag": true,
        "model": "qwen3.5:4b",
        "verdict": "false_positive"
      },
      {
        "confidence": 0.95,
        "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 2026-05-21T15:37
๐Ÿค– FusionSOC AI 2026-05-21T15:37
๐Ÿค– FusionSOC AI 2026-05-21T15:37

๐Ÿ“œ Timeline

2026-05-21T15:37:53
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% ...
2026-05-21T15:37:38
FusionSOC AI
Status changed: open โ†’ investigating
2026-05-21T15:37:38
FusionSOC
Action recommended โ†’ executed: General Activity Sweep: 0 events found
2026-05-21T15:37:38
FusionSOC AI
Note by FusionSOC AI: ## ๐Ÿ” General Activity Sweep **Action:** Manual review required **Sensor:** `8f3a47be-5629-4c...` **Time Window:** +/- 2 ...
2026-05-21T15:37:37
FusionSOC
Response action queued: recommended on Manual review required
2026-05-21T15:37:37
FusionSOC
Action tag โ†’ executed: Tag applied
2026-05-21T15:37:35
FusionSOC
Response action queued: tag on 8f3a47be-5629-4c66-921d-17c39ed07e87:fusionsoc-investigated
2026-05-21T15:37:35
FusionSOC AI
Detection bc2cebe0-dc1a-4b06-b60b-ff9d6a0f2569 triaged as true_positive (medium severity, confidence: 0%)
2026-05-21T15:37:35
FusionSOC AI
Case created from detection: general.fusionsoc-t1547-boot-logon-autostart-execution