Unauthorised USB Device
Medium
Open
ALR-00474 · 2026-04-08T03:18:38Z
Description
Unauthorised USB mass storage device connected to SRV-DC-01 by user 'e.evans'. Device blocked by SOC365 Engine endpoint policy.
Alert Metadata
Endpoint Information
MITRE ATT&CK Mapping
Investigation Timeline
03:18:38
Event ingested by SOC365 Engine
03:18:41
EmilyAI triage started — correlation enrichment
03:18:47
EmilyAI confidence: 90% — escalated to human analyst
03:19:17
Alert assigned to analyst: Marcus Webb
03:19:30
Investigation started — querying SIEM and threat intelligence
Related Alerts
| ID | Time | Alert | Severity | Status | Host |
|---|---|---|---|---|---|
| ALR-00149 | 3m ago | Unauthorised USB Device | Low | False Positive | WS-LAP-011 |
| ALR-00069 | 6h ago | Unauthorised USB Device | Low | Investigating | WS-PC-003 |
| ALR-00366 | 7h ago | Rogue DHCP Server | Medium | Investigating | SRV-DC-01 |
| ALR-00237 | 10h ago | Failed MFA Challenge | Low | Open | SRV-DC-01 |
| ALR-00276 | 16h ago | Unauthorised USB Device | Informational | False Positive | WS-PC-002 |