Unauthorised USB Device
Low
Investigating
ALR-00311 · 2026-05-25T10:45:58Z
Description
Unauthorised USB mass storage device connected to SRV-SQL-01 by user 'e.evans'. Device blocked by SOC365 Engine endpoint policy.
Alert Metadata
Endpoint Information
MITRE ATT&CK Mapping
Investigation Timeline
10:45:58
Event ingested by SOC365 Engine
10:46:03
EmilyAI triage started — correlation enrichment
10:46:09
EmilyAI confidence: 90% — escalated to human analyst
10:46:25
Alert assigned to analyst: EmilyAI (auto)
10:48:31
Investigation started — querying SIEM and threat intelligence
Related Alerts
| ID | Time | Alert | Severity | Status | Host |
|---|---|---|---|---|---|
| ALR-00153 | 34m ago | Unauthorised USB Device | Informational | Investigating | WS-PC-003 |
| ALR-00485 | 53m ago | Credential Stuffing Attempt | Medium | Open | SRV-SQL-01 |
| ALR-00413 | 1h ago | Unauthorised USB Device | Medium | Resolved | WS-PC-001 |
| ALR-00474 | 3h ago | Unauthorised USB Device | Informational | Escalated | SRV-DC-01 |
| ALR-00423 | 4h ago | Kerberoasting Attempt | Medium | Investigating | SRV-SQL-01 |