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Certificate Anomaly

Informational Investigating
ALR-00308 · 2026-10-09T01:29:22Z

Description

TLS certificate anomaly detected on SW-CORE-01. Self-signed certificate on port 443 does not match expected corporate CA chain.

Alert Metadata

Alert ID
ALR-00308
Timestamp
2026-10-09T01:29:22Z
Severity
Informational
Status
Investigating
Detection Source
SOC365 Engine
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
SW-CORE-01
User Account
e.evans
Source IP
194.196.62.223
Destination IP
10.0.13.147
Origin Country
NL Netherlands

MITRE ATT&CK Mapping

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

Investigation Timeline

01:29:22 Event ingested by SOC365 Engine
01:29:23 EmilyAI triage started — correlation enrichment
01:29:33 EmilyAI confidence: 86% — escalated to human analyst
01:29:55 Alert assigned to analyst: EmilyAI (auto)
01:30:57 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00125 3h ago Ransomware Behaviour Detected Informational False Positive SW-CORE-01
ALR-00258 4h ago Certificate Anomaly Medium Open SW-CORE-01
ALR-00348 5h ago Credential Stuffing Attempt Low Escalated SW-CORE-01
ALR-00332 11h ago DLP Policy Violation High Escalated SW-CORE-01
ALR-00305 14h ago Failed MFA Challenge Critical Escalated SW-CORE-01