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Rogue DHCP Server

Low Resolved
ALR-00038 · 2026-07-05T20:55:05Z

Description

Rogue DHCP server detected on VLAN 10 from WS-PC-001. Offering IPs in unexpected range. Endpoint Agent quarantined the device.

Alert Metadata

Alert ID
ALR-00038
Timestamp
2026-07-05T20:55:05Z
Severity
Low
Status
Resolved
Detection Source
Endpoint Agent
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
WS-PC-001
User Account
m.taylor
Source IP
91.217.195.107
Destination IP
10.2.229.76
Origin Country
RU Russia

MITRE ATT&CK Mapping

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

Investigation Timeline

20:55:05 Event ingested by SOC365 Engine
20:55:09 EmilyAI triage started — correlation enrichment
20:55:19 EmilyAI confidence: 84% — escalated to human analyst
20:55:36 Alert assigned to analyst: EmilyAI (auto)
20:56:12 Investigation started — querying SIEM and threat intelligence
21:04:34 Containment action taken — endpoint isolated
21:06:19 Alert resolved — remediation complete

Related Alerts

ID Time Alert Severity Status Host
ALR-00184 4h ago Rogue DHCP Server High Investigating WS-LAP-010
ALR-00115 11h ago Failed MFA Challenge Low Resolved WS-PC-001
ALR-00278 13h ago Rogue DHCP Server High Escalated WS-LAP-010
ALR-00121 1d ago Malware Signature Match Low Escalated WS-PC-001
ALR-00007 1d ago Rogue DHCP Server Low Resolved SRV-BACKUP-01