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Rogue DHCP Server

Low Resolved
ALR-00133 · 2026-10-06T07:11:25Z

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-00133
Timestamp
2026-10-06T07:11:25Z
Severity
Low
Status
Resolved
Detection Source
Dark Web Monitor
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
SRV-APP-01
User Account
l.johnson
Source IP
185.43.220.97
Destination IP
10.0.18.183
Origin Country
KP North Korea

MITRE ATT&CK Mapping

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

Investigation Timeline

07:11:25 Event ingested by SOC365 Engine
07:11:29 EmilyAI triage started — correlation enrichment
07:11:34 EmilyAI confidence: 78% — escalated to human analyst
07:12:06 Alert assigned to analyst: EmilyAI (auto)
07:13:32 Investigation started — querying SIEM and threat intelligence
07:16:57 Containment action taken — endpoint isolated
07:25:04 Alert resolved — remediation complete

Related Alerts

ID Time Alert Severity Status Host
ALR-00038 3h ago Rogue DHCP Server Medium False Positive SRV-FILE-01
ALR-00154 3h ago Rogue DHCP Server Medium Escalated WS-LAP-010
ALR-00303 3h ago Insider Threat Indicator Low Investigating SRV-APP-01
ALR-00063 3h ago Rogue DHCP Server Medium Resolved SRV-APP-01
ALR-00309 4h ago Anomalous DNS Query Low Investigating SRV-APP-01