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Unauthorised USB Device

Low Open
ALR-00232 · 2026-07-06T03:48:57Z

Description

Unauthorised USB mass storage device connected to WS-PC-006 by user 'c.williams'. Device blocked by Endpoint Agent endpoint policy.

Alert Metadata

Alert ID
ALR-00232
Timestamp
2026-07-06T03:48:57Z
Severity
Low
Status
Open
Detection Source
Endpoint Agent
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
WS-PC-006
User Account
c.williams
Source IP
185.145.220.46
Destination IP
10.0.158.137
Origin Country
GB United Kingdom

MITRE ATT&CK Mapping

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

Investigation Timeline

03:48:57 Event ingested by SOC365 Engine
03:49:00 EmilyAI triage started — correlation enrichment
03:49:10 EmilyAI confidence: 81% — escalated to human analyst
03:49:30 Alert assigned to analyst: EmilyAI (auto)
03:51:43 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00086 5h ago Unauthorised USB Device Medium Escalated SRV-BACKUP-01
ALR-00159 9h ago Anomalous DNS Query Informational Open WS-PC-006
ALR-00408 10h ago Unauthorised USB Device Low Resolved WS-LAP-010
ALR-00360 15h ago Unauthorised USB Device Medium False Positive SRV-MAIL-01
ALR-00218 19h ago Unauthorised USB Device Medium Escalated AP-WIFI-03