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Unauthorised USB Device

Low Open
ALR-00030 · 2026-10-07T07:06:52Z

Description

Unauthorised USB mass storage device connected to WS-PC-001 by user 'k.brown'. Device blocked by Network IDS endpoint policy.

Alert Metadata

Alert ID
ALR-00030
Timestamp
2026-10-07T07:06:52Z
Severity
Low
Status
Open
Detection Source
Network IDS
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
WS-PC-001
User Account
k.brown
Source IP
91.72.195.189
Destination IP
10.0.120.196
Origin Country
RU Russia

MITRE ATT&CK Mapping

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

Investigation Timeline

07:06:52 Event ingested by SOC365 Engine
07:06:54 EmilyAI triage started — correlation enrichment
07:06:58 EmilyAI confidence: 81% — escalated to human analyst
07:07:28 Alert assigned to analyst: EmilyAI (auto)
07:08:06 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00335 37m ago Unauthorised USB Device Low Open SW-CORE-01
ALR-00293 58m ago Shadow IT Discovery Low Investigating WS-PC-001
ALR-00138 3h ago Unauthorised USB Device Low Open WS-PC-004
ALR-00253 9h ago Unauthorised USB Device Informational False Positive SRV-APP-01
ALR-00134 17h ago Anomalous DNS Query Medium Open WS-PC-001