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Rogue DHCP Server

Informational Open
ALR-00452 · 2026-05-27T04:07:38Z

Description

Rogue DHCP server detected on VLAN 10 from SRV-APP-01. Offering IPs in unexpected range. Dark Web Monitor quarantined the device.

Alert Metadata

Alert ID
ALR-00452
Timestamp
2026-05-27T04:07:38Z
Severity
Informational
Status
Open
Detection Source
Dark Web Monitor
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
SRV-APP-01
User Account
a.wilson
Source IP
194.167.62.173
Destination IP
10.2.82.81
Origin Country
US United States

MITRE ATT&CK Mapping

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

Investigation Timeline

04:07:38 Event ingested by SOC365 Engine
04:07:39 EmilyAI triage started — correlation enrichment
04:07:51 EmilyAI confidence: 84% — escalated to human analyst
04:08:16 Alert assigned to analyst: EmilyAI (auto)
04:10:11 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00307 33m ago Unauthorised USB Device Low Resolved SRV-APP-01
ALR-00269 9h ago Rogue DHCP Server Low Open VM-DEV-01
ALR-00236 10h ago Rogue DHCP Server Informational Investigating WS-MAC-005
ALR-00255 16h ago Rogue DHCP Server High Investigating SRV-MAIL-01
ALR-00166 19h ago Brute Force SSH Low Escalated SRV-APP-01