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Certificate Anomaly

Informational Escalated
ALR-00161 · 2026-10-06T12:10:14Z

Description

TLS certificate anomaly detected on WS-PC-003. Self-signed certificate on port 443 does not match expected corporate CA chain.

Alert Metadata

Alert ID
ALR-00161
Timestamp
2026-10-06T12:10:14Z
Severity
Informational
Status
Escalated
Detection Source
DLP Module
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
WS-PC-003
User Account
m.taylor
Source IP
91.105.195.92
Destination IP
10.1.71.7
Origin Country
FR France

MITRE ATT&CK Mapping

Tactic
Defence Evasion
Technique
T1553.004
Reference
attack.mitre.org/techniques/T1553.004

Investigation Timeline

12:10:14 Event ingested by SOC365 Engine
12:10:16 EmilyAI triage started — correlation enrichment
12:10:26 EmilyAI confidence: 93% — escalated to human analyst
12:10:33 Alert assigned to analyst: EmilyAI (auto)
12:12:12 Investigation started — querying SIEM and threat intelligence
12:18:28 Containment action taken — endpoint isolated
12:26:48 Alert resolved — remediation complete

Related Alerts

ID Time Alert Severity Status Host
ALR-00258 4h ago Certificate Anomaly Medium Open SW-CORE-01
ALR-00076 8h ago Credential Stuffing Attempt Informational Open WS-PC-003
ALR-00049 10h ago Brute Force SSH High Escalated WS-PC-003
ALR-00050 12h ago Brute Force SSH Low Resolved WS-PC-003
ALR-00158 15h ago Data Exfiltration Attempt Low Investigating WS-PC-003