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Unauthorised USB Device

Informational Resolved
ALR-00344 · 2026-04-06T04:55:33Z

Description

Unauthorised USB mass storage device connected to WS-LAP-012 by user 'a.wilson'. Device blocked by Firewall endpoint policy.

Alert Metadata

Alert ID
ALR-00344
Timestamp
2026-04-06T04:55:33Z
Severity
Informational
Status
Resolved
Detection Source
Firewall
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
WS-LAP-012
User Account
a.wilson
Source IP
194.151.62.217
Destination IP
10.0.70.173
Origin Country
RU Russia

MITRE ATT&CK Mapping

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

Investigation Timeline

04:55:33 Event ingested by SOC365 Engine
04:55:37 EmilyAI triage started — correlation enrichment
04:55:38 EmilyAI confidence: 87% — escalated to human analyst
04:56:14 Alert assigned to analyst: EmilyAI (auto)
04:57:12 Investigation started — querying SIEM and threat intelligence
05:03:51 Containment action taken — endpoint isolated
05:09:33 Alert resolved — remediation complete

Related Alerts

ID Time Alert Severity Status Host
ALR-00243 38m ago Unauthorised USB Device Medium Resolved SRV-WEB-01
ALR-00141 3h ago Pass-the-Hash Detected Low False Positive WS-LAP-012
ALR-00184 9h ago Rogue DHCP Server Low Escalated WS-LAP-012
ALR-00387 16h ago Ransomware Behaviour Detected High Escalated WS-LAP-012
ALR-00223 22h ago DecoyPulse Honeypot Triggered Informational Resolved WS-LAP-012