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Certificate Anomaly

High Escalated
ALR-00053 · 2026-07-08T15:31:22Z

Description

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

Alert Metadata

Alert ID
ALR-00053
Timestamp
2026-07-08T15:31:22Z
Severity
High
Status
Escalated
Detection Source
DLP Module
Assigned Analyst
Anika Patel

Endpoint Information

Hostname
SRV-BACKUP-01
User Account
r.davies
Source IP
194.147.62.197
Destination IP
10.0.93.117
Origin Country
US United States

MITRE ATT&CK Mapping

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

Investigation Timeline

15:31:22 Event ingested by SOC365 Engine
15:31:23 EmilyAI triage started — correlation enrichment
15:31:35 EmilyAI confidence: 94% — escalated to human analyst
15:31:40 Alert assigned to analyst: Anika Patel
15:32:34 Investigation started — querying SIEM and threat intelligence
15:37:51 Containment action taken — endpoint isolated
15:46:47 Alert resolved — remediation complete

Related Alerts

ID Time Alert Severity Status Host
ALR-00111 2h ago Certificate Anomaly Low Resolved SRV-BACKUP-01
ALR-00112 8h ago Failed MFA Challenge Medium Resolved SRV-BACKUP-01
ALR-00430 10h ago Certificate Anomaly Medium False Positive WS-PC-004
ALR-00364 22h ago Unauthorised USB Device Informational Escalated SRV-BACKUP-01
ALR-00337 1d ago Ransomware Behaviour Detected High Open SRV-BACKUP-01