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Rogue DHCP Server

Low Investigating
ALR-00038 · 2026-04-08T09:18:45Z

Description

Rogue DHCP server detected on VLAN 10 from SW-CORE-01. Offering IPs in unexpected range. Endpoint Agent quarantined the device.

Alert Metadata

Alert ID
ALR-00038
Timestamp
2026-04-08T09:18:45Z
Severity
Low
Status
Investigating
Detection Source
Endpoint Agent
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
SW-CORE-01
User Account
f.hall
Source IP
45.105.148.100
Destination IP
10.2.62.219
Origin Country
IN India

MITRE ATT&CK Mapping

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

Investigation Timeline

09:18:45 Event ingested by SOC365 Engine
09:18:47 EmilyAI triage started — correlation enrichment
09:18:56 EmilyAI confidence: 80% — escalated to human analyst
09:19:26 Alert assigned to analyst: EmilyAI (auto)
09:20:58 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00427 19m ago Port Scan Detected Informational Open SW-CORE-01
ALR-00113 1h ago Credential Stuffing Attempt Informational False Positive SW-CORE-01
ALR-00205 8h ago Anomalous DNS Query Medium Investigating SW-CORE-01
ALR-00381 10h ago Phishing Email Blocked Critical Investigating SW-CORE-01
ALR-00214 19h ago Rogue DHCP Server Low Resolved SRV-DC-01