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Rogue DHCP Server

Medium Investigating
ALR-00464 · 2026-04-08T00:19:12Z

Description

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

Alert Metadata

Alert ID
ALR-00464
Timestamp
2026-04-08T00:19:12Z
Severity
Medium
Status
Investigating
Detection Source
Network IDS
Assigned Analyst
Anika Patel

Endpoint Information

Hostname
SW-CORE-01
User Account
h.roberts
Source IP
194.144.62.76
Destination IP
10.1.26.190
Origin Country
RU Russia

MITRE ATT&CK Mapping

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

Investigation Timeline

00:19:12 Event ingested by SOC365 Engine
00:19:16 EmilyAI triage started — correlation enrichment
00:19:25 EmilyAI confidence: 85% — escalated to human analyst
00:19:36 Alert assigned to analyst: Anika Patel
00:20:37 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00121 10h ago Kerberoasting Attempt Low Open SW-CORE-01
ALR-00205 11h ago Privilege Escalation Attempt Informational Escalated SW-CORE-01
ALR-00100 11h ago Pass-the-Hash Detected Informational False Positive SW-CORE-01
ALR-00450 18h ago Rogue DHCP Server Medium Investigating VM-DEV-01
ALR-00022 19h ago Tor Exit Node Connection Informational False Positive SW-CORE-01