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Rogue DHCP Server

Low False Positive
ALR-00117 · 2026-10-09T17:46:49Z

Description

Rogue DHCP server detected on VLAN 10 from WS-LAP-012. Offering IPs in unexpected range. Dark Web Monitor quarantined the device.

Alert Metadata

Alert ID
ALR-00117
Timestamp
2026-10-09T17:46:49Z
Severity
Low
Status
False Positive
Detection Source
Dark Web Monitor
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
WS-LAP-012
User Account
c.williams
Source IP
91.251.195.185
Destination IP
10.3.186.183
Origin Country
IN India

MITRE ATT&CK Mapping

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

Investigation Timeline

17:46:49 Event ingested by SOC365 Engine
17:46:53 EmilyAI triage started — correlation enrichment
17:47:04 EmilyAI confidence: 91% — escalated to human analyst
17:47:11 Alert assigned to analyst: EmilyAI (auto)
17:48:11 Investigation started — querying SIEM and threat intelligence
17:55:17 Containment action taken — endpoint isolated
17:59:01 Alert resolved — remediation complete

Related Alerts

ID Time Alert Severity Status Host
ALR-00235 2h ago Rogue DHCP Server Informational Open AP-WIFI-03
ALR-00023 12h ago Rogue DHCP Server Informational Escalated SRV-WEB-01
ALR-00379 16h ago Certificate Anomaly Medium Open WS-LAP-012
ALR-00010 22h ago Rogue DHCP Server Medium False Positive WS-PC-001
ALR-00097 1d ago Rogue DHCP Server Low Resolved SRV-WEB-01