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Rogue DHCP Server

Low False Positive
ALR-00397 · 2026-05-23T13:15:29Z

Description

Rogue DHCP server detected on VLAN 10 from WS-PC-006. Offering IPs in unexpected range. Dark Web Monitor quarantined the device.

Alert Metadata

Alert ID
ALR-00397
Timestamp
2026-05-23T13:15:29Z
Severity
Low
Status
False Positive
Detection Source
Dark Web Monitor
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
WS-PC-006
User Account
a.wilson
Source IP
103.131.216.130
Destination IP
10.1.131.239
Origin Country
DE Germany

MITRE ATT&CK Mapping

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

Investigation Timeline

13:15:29 Event ingested by SOC365 Engine
13:15:30 EmilyAI triage started — correlation enrichment
13:15:41 EmilyAI confidence: 78% — escalated to human analyst
13:16:05 Alert assigned to analyst: EmilyAI (auto)
13:16:43 Investigation started — querying SIEM and threat intelligence
13:25:13 Containment action taken — endpoint isolated
13:28:38 Alert resolved — remediation complete

Related Alerts

ID Time Alert Severity Status Host
ALR-00320 1h ago Rogue DHCP Server Informational Escalated WS-PC-001
ALR-00082 6h ago Rogue DHCP Server Medium Investigating SRV-WEB-01
ALR-00159 7h ago Rogue DHCP Server Low Resolved SRV-DC-01
ALR-00450 8h ago Rogue DHCP Server Informational Escalated SW-CORE-01
ALR-00364 9h ago Suspicious PowerShell Execution Low Escalated WS-PC-006