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Certificate Anomaly

Informational Open
ALR-00138 · 2026-05-26T01:23:59Z

Description

TLS certificate anomaly detected on WS-LAP-010. Self-signed certificate on port 443 does not match expected corporate CA chain.

Alert Metadata

Alert ID
ALR-00138
Timestamp
2026-05-26T01:23:59Z
Severity
Informational
Status
Open
Detection Source
Dark Web Monitor
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
WS-LAP-010
User Account
c.williams
Source IP
91.192.195.206
Destination IP
10.3.63.94
Origin Country
GB United Kingdom

MITRE ATT&CK Mapping

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

Investigation Timeline

01:23:59 Event ingested by SOC365 Engine
01:24:01 EmilyAI triage started — correlation enrichment
01:24:04 EmilyAI confidence: 87% — escalated to human analyst
01:24:42 Alert assigned to analyst: EmilyAI (auto)
01:25:21 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00119 1h ago Insider Threat Indicator Medium Escalated WS-LAP-010
ALR-00221 12h ago Certificate Anomaly Medium Open SRV-APP-01
ALR-00274 14h ago Certificate Anomaly Low Open WS-PC-003
ALR-00247 16h ago Anomalous DNS Query High Investigating WS-LAP-010
ALR-00208 1d ago Certificate Anomaly High Escalated SW-CORE-01