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Certificate Anomaly

Medium Open
ALR-00077 · 2026-07-06T10:33:30Z

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-00077
Timestamp
2026-07-06T10:33:30Z
Severity
Medium
Status
Open
Detection Source
Network IDS
Assigned Analyst
Marcus Webb

Endpoint Information

Hostname
SRV-BACKUP-01
User Account
k.brown
Source IP
194.82.62.147
Destination IP
10.0.33.115
Origin Country
BR Brazil

MITRE ATT&CK Mapping

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

Investigation Timeline

10:33:30 Event ingested by SOC365 Engine
10:33:31 EmilyAI triage started — correlation enrichment
10:33:37 EmilyAI confidence: 96% — escalated to human analyst
10:34:01 Alert assigned to analyst: Marcus Webb
10:35:47 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00128 13h ago Unusual Outbound Traffic Low Investigating SRV-BACKUP-01
ALR-00073 23h ago Certificate Anomaly Informational Open SRV-WEB-01
ALR-00272 1d ago Brute Force SSH Medium Open SRV-BACKUP-01
ALR-00139 1d ago Certificate Anomaly Medium False Positive WS-PC-003
ALR-00340 1d ago Shadow IT Discovery Low Open SRV-BACKUP-01