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Rogue DHCP Server

Medium False Positive
ALR-00025 · 2026-05-27T09:58:33Z

Description

Rogue DHCP server detected on VLAN 10 from WS-LAP-011. Offering IPs in unexpected range. Attack Surface Scanner quarantined the device.

Alert Metadata

Alert ID
ALR-00025
Timestamp
2026-05-27T09:58:33Z
Severity
Medium
Status
False Positive
Detection Source
Attack Surface Scanner
Assigned Analyst
Emma Richardson

Endpoint Information

Hostname
WS-LAP-011
User Account
h.roberts
Source IP
91.161.195.5
Destination IP
10.0.209.242
Origin Country
IN India

MITRE ATT&CK Mapping

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

Investigation Timeline

09:58:33 Event ingested by SOC365 Engine
09:58:38 EmilyAI triage started — correlation enrichment
09:58:38 EmilyAI confidence: 87% — escalated to human analyst
09:59:18 Alert assigned to analyst: Emma Richardson
09:59:41 Investigation started — querying SIEM and threat intelligence
10:02:17 Containment action taken — endpoint isolated
10:09:07 Alert resolved — remediation complete

Related Alerts

ID Time Alert Severity Status Host
ALR-00162 3h ago C2 Beacon Activity High Escalated WS-LAP-011
ALR-00200 4h ago Rogue DHCP Server Informational False Positive SRV-FILE-01
ALR-00371 5h ago Rogue DHCP Server Low False Positive SW-CORE-01
ALR-00164 7h ago Rogue DHCP Server High Investigating SRV-MAIL-01
ALR-00139 11h ago C2 Beacon Activity Low Resolved WS-LAP-011