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Certificate Anomaly

Low Resolved
ALR-00056 · 2026-05-25T16:19:22Z

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-00056
Timestamp
2026-05-25T16:19:22Z
Severity
Low
Status
Resolved
Detection Source
SOC365 Engine
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
WS-PC-003
User Account
a.wilson
Source IP
194.71.62.28
Destination IP
10.2.150.104
Origin Country
IN India

MITRE ATT&CK Mapping

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

Investigation Timeline

16:19:22 Event ingested by SOC365 Engine
16:19:24 EmilyAI triage started — correlation enrichment
16:19:34 EmilyAI confidence: 98% — escalated to human analyst
16:19:48 Alert assigned to analyst: EmilyAI (auto)
16:21:02 Investigation started — querying SIEM and threat intelligence
16:26:53 Containment action taken — endpoint isolated
16:37:49 Alert resolved — remediation complete

Related Alerts

ID Time Alert Severity Status Host
ALR-00456 3h ago Phishing Email Blocked High Escalated WS-PC-003
ALR-00210 11h ago Certificate Anomaly Medium Resolved WS-LAP-010
ALR-00414 15h ago Certificate Anomaly Low Resolved SW-CORE-01
ALR-00415 16h ago Certificate Anomaly Low Resolved AP-WIFI-03
ALR-00491 18h ago Unusual Outbound Traffic Low False Positive WS-PC-003