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Certificate Anomaly

Critical Investigating
ALR-00046 · 2026-10-06T03:59:33Z

Description

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

Alert Metadata

Alert ID
ALR-00046
Timestamp
2026-10-06T03:59:33Z
Severity
Critical
Status
Investigating
Detection Source
DecoyPulse
Assigned Analyst
Sarah Chen

Endpoint Information

Hostname
FW-EDGE-01
User Account
k.brown
Source IP
91.142.195.102
Destination IP
10.1.23.65
Origin Country
RU Russia

MITRE ATT&CK Mapping

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

Investigation Timeline

03:59:33 Event ingested by SOC365 Engine
03:59:36 EmilyAI triage started — correlation enrichment
03:59:42 EmilyAI confidence: 84% — escalated to human analyst
03:59:52 Alert assigned to analyst: Sarah Chen
04:02:32 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00267 4h ago Lateral Movement Detected Low Escalated FW-EDGE-01
ALR-00230 5h ago Certificate Anomaly Informational Open VM-DEV-01
ALR-00274 5h ago Certificate Anomaly Low Escalated SRV-WEB-01
ALR-00392 14h ago DecoyPulse Honeypot Triggered Informational Resolved FW-EDGE-01
ALR-00162 17h ago Privilege Escalation Attempt Low Open FW-EDGE-01