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Rogue DHCP Server

Critical Escalated
ALR-00268 · 2026-10-05T13:37:27Z

Description

Rogue DHCP server detected on VLAN 10 from WS-LAP-011. Offering IPs in unexpected range. Network IDS quarantined the device.

Alert Metadata

Alert ID
ALR-00268
Timestamp
2026-10-05T13:37:27Z
Severity
Critical
Status
Escalated
Detection Source
Network IDS
Assigned Analyst
Anika Patel

Endpoint Information

Hostname
WS-LAP-011
User Account
system
Source IP
103.118.216.151
Destination IP
10.3.230.66
Origin Country
IN India

MITRE ATT&CK Mapping

Tactic
Discovery
Technique
T1557.003
Reference
attack.mitre.org/techniques/T1557.003

Investigation Timeline

13:37:27 Event ingested by SOC365 Engine
13:37:28 EmilyAI triage started — correlation enrichment
13:37:33 EmilyAI confidence: 85% — escalated to human analyst
13:38:09 Alert assigned to analyst: Anika Patel
13:38:12 Investigation started — querying SIEM and threat intelligence
13:46:44 Containment action taken — endpoint isolated
13:55:58 Alert resolved — remediation complete

Related Alerts

ID Time Alert Severity Status Host
ALR-00338 11h ago Anomalous DNS Query High Investigating WS-LAP-011
ALR-00409 16h ago Unauthorised USB Device Medium Investigating WS-LAP-011
ALR-00436 18h ago Rogue DHCP Server Medium Open WS-LAP-012
ALR-00200 1d ago Rogue DHCP Server Low Escalated WS-LAP-010
ALR-00134 1d ago Rogue DHCP Server Low Escalated WS-LAP-011