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Unauthorised USB Device

Low Open
ALR-00216 · 2026-05-26T03:17:25Z

Description

Unauthorised USB mass storage device connected to FW-EDGE-01 by user 'p.thomas'. Device blocked by Network IDS endpoint policy.

Alert Metadata

Alert ID
ALR-00216
Timestamp
2026-05-26T03:17:25Z
Severity
Low
Status
Open
Detection Source
Network IDS
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
FW-EDGE-01
User Account
p.thomas
Source IP
45.108.148.116
Destination IP
10.3.222.254
Origin Country
IR Iran

MITRE ATT&CK Mapping

Tactic
Initial Access
Technique
T1091
Reference
attack.mitre.org/techniques/T1091

Investigation Timeline

03:17:25 Event ingested by SOC365 Engine
03:17:26 EmilyAI triage started — correlation enrichment
03:17:36 EmilyAI confidence: 83% — escalated to human analyst
03:17:44 Alert assigned to analyst: EmilyAI (auto)
03:19:50 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00449 2h ago Unauthorised USB Device Medium Open SRV-DC-01
ALR-00060 10h ago Unauthorised USB Device Informational Escalated WS-PC-006
ALR-00354 18h ago Unauthorised USB Device Medium Escalated WS-PC-004
ALR-00239 1d ago Suspicious Scheduled Task High Escalated FW-EDGE-01
ALR-00441 1d ago Unauthorised USB Device Medium False Positive WS-PC-001