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Unauthorised USB Device

Low False Positive
ALR-00165 · 2026-07-06T03:14:27Z

Description

Unauthorised USB mass storage device connected to SRV-WEB-01 by user 'k.brown'. Device blocked by Dark Web Monitor endpoint policy.

Alert Metadata

Alert ID
ALR-00165
Timestamp
2026-07-06T03:14:27Z
Severity
Low
Status
False Positive
Detection Source
Dark Web Monitor
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
SRV-WEB-01
User Account
k.brown
Source IP
91.53.195.190
Destination IP
10.1.60.40
Origin Country
VN Vietnam

MITRE ATT&CK Mapping

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

Investigation Timeline

03:14:27 Event ingested by SOC365 Engine
03:14:28 EmilyAI triage started — correlation enrichment
03:14:36 EmilyAI confidence: 96% — escalated to human analyst
03:14:57 Alert assigned to analyst: EmilyAI (auto)
03:16:39 Investigation started — querying SIEM and threat intelligence
03:19:43 Containment action taken — endpoint isolated
03:27:20 Alert resolved — remediation complete

Related Alerts

ID Time Alert Severity Status Host
ALR-00489 42m ago Unauthorised USB Device Informational Open WS-PC-001
ALR-00184 3h ago Tor Exit Node Connection Low Open SRV-WEB-01
ALR-00209 8h ago Unauthorised USB Device Low Escalated WS-PC-003
ALR-00037 9h ago Credential Stuffing Attempt Medium Open SRV-WEB-01
ALR-00123 14h ago Unauthorised USB Device Low Resolved SRV-FILE-01