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Rogue DHCP Server

Informational Open
ALR-00171 · 2026-07-06T03:23:52Z

Description

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

Alert Metadata

Alert ID
ALR-00171
Timestamp
2026-07-06T03:23:52Z
Severity
Informational
Status
Open
Detection Source
Endpoint Agent
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
SRV-APP-01
User Account
p.thomas
Source IP
103.203.216.32
Destination IP
10.1.14.74
Origin Country
UA Ukraine

MITRE ATT&CK Mapping

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

Investigation Timeline

03:23:52 Event ingested by SOC365 Engine
03:23:57 EmilyAI triage started — correlation enrichment
03:24:00 EmilyAI confidence: 80% — escalated to human analyst
03:24:34 Alert assigned to analyst: EmilyAI (auto)
03:25:09 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00180 6m ago Data Exfiltration Attempt Low Resolved SRV-APP-01
ALR-00447 7h ago Kerberoasting Attempt Low Escalated SRV-APP-01
ALR-00169 12h ago Data Exfiltration Attempt Medium Escalated SRV-APP-01
ALR-00163 14h ago DLP Policy Violation Low Escalated SRV-APP-01
ALR-00337 15h ago Rogue DHCP Server Low Escalated SRV-DC-01