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Rogue DHCP Server

Informational Investigating
ALR-00230 · 2026-10-09T20:39:53Z

Description

Rogue DHCP server detected on VLAN 10 from WS-LAP-010. Offering IPs in unexpected range. Firewall quarantined the device.

Alert Metadata

Alert ID
ALR-00230
Timestamp
2026-10-09T20:39:53Z
Severity
Informational
Status
Investigating
Detection Source
Firewall
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
WS-LAP-010
User Account
l.johnson
Source IP
103.8.216.92
Destination IP
10.2.134.31
Origin Country
UA Ukraine

MITRE ATT&CK Mapping

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

Investigation Timeline

20:39:53 Event ingested by SOC365 Engine
20:39:56 EmilyAI triage started — correlation enrichment
20:40:04 EmilyAI confidence: 87% — escalated to human analyst
20:40:32 Alert assigned to analyst: EmilyAI (auto)
20:40:55 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00277 1h ago Brute Force SSH High Open WS-LAP-010
ALR-00079 1h ago Malware Signature Match Informational Resolved WS-LAP-010
ALR-00080 5h ago Suspicious PowerShell Execution Medium Escalated WS-LAP-010
ALR-00467 9h ago Unauthorised USB Device Informational Resolved WS-LAP-010
ALR-00075 15h ago DLP Policy Violation Medium False Positive WS-LAP-010