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Certificate Anomaly

Low Open
ALR-00311 · 2026-10-10T01:03:21Z

Description

TLS certificate anomaly detected on WS-LAP-011. Self-signed certificate on port 443 does not match expected corporate CA chain.

Alert Metadata

Alert ID
ALR-00311
Timestamp
2026-10-10T01:03:21Z
Severity
Low
Status
Open
Detection Source
Email Gateway
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
WS-LAP-011
User Account
s.jones
Source IP
45.79.148.205
Destination IP
10.1.63.21
Origin Country
GB United Kingdom

MITRE ATT&CK Mapping

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

Investigation Timeline

01:03:21 Event ingested by SOC365 Engine
01:03:22 EmilyAI triage started — correlation enrichment
01:03:33 EmilyAI confidence: 86% — escalated to human analyst
01:04:01 Alert assigned to analyst: EmilyAI (auto)
01:06:14 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00270 21m ago Certificate Anomaly High Escalated SRV-APP-01
ALR-00490 1h ago Privilege Escalation Attempt Low Resolved WS-LAP-011
ALR-00236 3h ago Certificate Anomaly Informational Resolved SRV-FILE-01
ALR-00403 5h ago Certificate Anomaly Medium False Positive SRV-MAIL-01
ALR-00489 12h ago Rogue DHCP Server High Escalated WS-LAP-011