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Rogue DHCP Server

Critical Escalated
ALR-00064 · 2026-10-06T05:02:41Z

Description

Rogue DHCP server detected on VLAN 10 from WS-PC-003. Offering IPs in unexpected range. Attack Surface Scanner quarantined the device.

Alert Metadata

Alert ID
ALR-00064
Timestamp
2026-10-06T05:02:41Z
Severity
Critical
Status
Escalated
Detection Source
Attack Surface Scanner
Assigned Analyst
Emma Richardson

Endpoint Information

Hostname
WS-PC-003
User Account
system
Source IP
103.25.216.200
Destination IP
10.1.159.232
Origin Country
FR France

MITRE ATT&CK Mapping

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

Investigation Timeline

05:02:41 Event ingested by SOC365 Engine
05:02:46 EmilyAI triage started — correlation enrichment
05:02:54 EmilyAI confidence: 98% — escalated to human analyst
05:02:57 Alert assigned to analyst: Emma Richardson
05:04:25 Investigation started — querying SIEM and threat intelligence
05:10:03 Containment action taken — endpoint isolated
05:17:46 Alert resolved — remediation complete

Related Alerts

ID Time Alert Severity Status Host
ALR-00422 3h ago Rogue DHCP Server Low Open SW-CORE-01
ALR-00473 6h ago Phishing Email Blocked Low Escalated WS-PC-003
ALR-00297 7h ago Shadow IT Discovery Informational Resolved WS-PC-003
ALR-00071 7h ago Rogue DHCP Server Medium Resolved WS-PC-006
ALR-00289 12h ago Rogue DHCP Server Low Investigating SW-CORE-01