โ
Case #4843
general.fusionsoc-t1547-boot-logon-autostart-execution
๐ท๏ธ Analyst Verdict Classification
๐ค AI Analysis
๐ 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: 60% ยท Verdict: false positive
Event Data:
BASE_ADDRESS:
140698254573568
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=2988,i,11827732018070637525,8080545405691386311,524288 --field-trial-handle=2476,i,17263902604457616907,14227136976809949428,262144 --variations-seed-version --pseudonymization-salt-handle=2496,i,223365836950434127,8278196137498435424,4 --trace-process-track-uuid=3190708990060038890 --mojo-platform-channel-handle=3000 /prefetch:13
FILE_IS_SIGNED:
1
FILE_PATH:
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
HASH:
b4ea52196967c69a61c114c9934950f511f26bded473107e1b6c37cd8a22bf9e
MEMORY_USAGE:
20889600
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': 157257728, 'PARENT_ATOM': '4b2f8ec4701a4e67d65b8a956a144f60', 'PARENT_PROCESS_ID': 74292, 'PROCESS_ID': 89564, 'THIS_ATOM': 'd76686bfdb48045b22530dea6a1487a2', 'THREADS': 67, 'TIMESTAMP': 1779730337397, 'USER_NAME': 'DESKTOP-ATSEPSK\\Joy Howell'}
PARENT_PROCESS_ID:
89564
PROCESS_ID:
93248
THREADS:
9
USER_NAME:
DESKTOP-ATSEPSK\Joy Howell
Analyst Declaration:
๐ 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\" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --startup-read-main-dll --metrics-shmem-handle=2988,i,11827732018070637525,8080545405691386311,524288 --field-trial-handle=2476,i,17263902604457616907,14227136976809949428,262144 --variations-seed-version --pseudonymization-salt-handle=2496,i,223365836950434127,8278196137498435424,4 --trace-process-track-uuid=3190708990060038890 --mojo-platform-channel-handle=3000 /prefetch:13",
"FILE_IS_SIGNED": 1,
"FILE_PATH": "C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\msedge.exe",
"HASH": "b4ea52196967c69a61c114c9934950f511f26bded473107e1b6c37cd8a22bf9e",
"MEMORY_USAGE": 20889600,
"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": 157257728,
"PARENT_ATOM": "4b2f8ec4701a4e67d65b8a956a144f60",
"PARENT_PROCESS_ID": 74292,
"PROCESS_ID": 89564,
"THIS_ATOM": "d76686bfdb48045b22530dea6a1487a2",
"THREADS": 67,
"TIMESTAMP": 1779730337397,
"USER_NAME": "DESKTOP-ATSEPSK\\Joy Howell"
},
"PARENT_PROCESS_ID": 89564,
"PROCESS_ID": 93248,
"THREADS": 9,
"USER_NAME": "DESKTOP-ATSEPSK\\Joy Howell"
},
"routing": {
"arch": 2,
"did": "",
"event_id": "84901b7c-b73d-4360-b775-8ae5e4721d89",
"event_time": 1779730337901,
"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": 1225,
"moduleid": 2,
"oid": "d3541070-8b0e-4663-8a6a-aa0727aacd36",
"parent": "d76686bfdb48045b22530dea6a1487a2",
"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": "08a454c25e53786441ce15146a1487a2"
}
},
"detect_id": "4d7d644a-96a8-4445-87fe-e3046a1487a3",
"gen_time": 1779730339127,
"link": "https://app.limacharlie.io/orgs/d3541070-8b0e-4663-8a6a-aa0727aacd36/sensors/8f3a47be-5629-4c66-921d-17c39ed07e87/timeline?time=1779730337\u0026selected=08a454c25e53786441ce15146a1487a2",
"namespace": "general",
"routing": {
"arch": 2,
"did": "",
"event_id": "84901b7c-b73d-4360-b775-8ae5e4721d89",
"event_time": 1779730337901,
"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": 1225,
"moduleid": 2,
"oid": "d3541070-8b0e-4663-8a6a-aa0727aacd36",
"parent": "d76686bfdb48045b22530dea6a1487a2",
"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": "08a454c25e53786441ce15146a1487a2"
},
"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": 1779730339000
}
๐ 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
}
}
}
๐ค Triage JSON
{
"confidence": 0.6,
"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": 27,
"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 tree shows typical Edge behavior without any anomalies.\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 browser process starting as a utility service. This is a legitimate activity and not indicative of malicious behavior.\n\n**IOC Analysis:** The file path points to a known legitimate Microsoft Edge executable located in Program Files (x86). The file is signed by Microsoft, and the process is running with expected command-line arguments for a legitimate service.\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 (informational, 90% 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": 0.9,
"had_rag": true,
"model": "deepseek-r1:16b",
"verdict": "false_positive"
}
],
"winning_count": 2,
"winning_verdict": "false_positive"
}
}
โ๏ธ Response Actions
| Action | Target | Status | Result | |
|---|---|---|---|---|
| tag | executed | Tag applied | ||
| recommended | executed | General Activity Sweep: 0 events found |
๐ Add Note
๐ฌ Notes (3)
๐ค FusionSOC AI
2026-05-25T17:41
๐ค FusionSOC AI
2026-05-25T17:40
๐ค FusionSOC AI
2026-05-25T17:40
๐ Timeline
2026-05-25T17:41:05
FusionSOC AI
Note by FusionSOC AI: ## ๐ณ๏ธ Secondary Vote (RAG-Enhanced) **Vote:** MAJORITY (2/3 โ FALSE POSITIVE) - qwen3.5:35b: true_positive (medium, 0% ...
2026-05-25T17:40:52
FusionSOC AI
Status changed: open โ investigating
2026-05-25T17:40:52
FusionSOC
Action recommended โ executed: General Activity Sweep: 0 events found
2026-05-25T17:40:52
FusionSOC AI
Note by FusionSOC AI: ## ๐ General Activity Sweep **Action:** Manual review required **Sensor:** `8f3a47be-5629-4c...` **Time Window:** +/- 2 ...
2026-05-25T17:40:51
FusionSOC
Response action queued: recommended on Manual review required
2026-05-25T17:40:51
FusionSOC
Action tag โ executed: Tag applied
2026-05-25T17:40:51
FusionSOC
Response action queued: tag on 8f3a47be-5629-4c66-921d-17c39ed07e87:fusionsoc-investigated
2026-05-25T17:40:51
FusionSOC AI
Detection 4d7d644a-96a8-4445-87fe-e3046a1487a3 triaged as true_positive (medium severity, confidence: 0%)
2026-05-25T17:40:51
FusionSOC AI
Case created from detection: general.fusionsoc-t1547-boot-logon-autostart-execution