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Acme Legal Services Ltd Live 15:53:31 UTC

Certificate Anomaly

Informational Investigating
ALR-00099 · 2026-05-23T20:27:20Z

Description

TLS certificate anomaly detected on WS-PC-006. Self-signed certificate on port 443 does not match expected corporate CA chain.

Alert Metadata

Alert ID
ALR-00099
Timestamp
2026-05-23T20:27:20Z
Severity
Informational
Status
Investigating
Detection Source
Network IDS
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
WS-PC-006
User Account
system
Source IP
185.139.220.169
Destination IP
10.2.11.9
Origin Country
IN India

MITRE ATT&CK Mapping

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

Investigation Timeline

20:27:20 Event ingested by SOC365 Engine
20:27:23 EmilyAI triage started — correlation enrichment
20:27:28 EmilyAI confidence: 81% — escalated to human analyst
20:28:03 Alert assigned to analyst: EmilyAI (auto)
20:29:02 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00264 8m ago Unauthorised USB Device Medium Investigating WS-PC-006
ALR-00202 3h ago Certificate Anomaly Low Open WS-PC-002
ALR-00223 5h ago Certificate Anomaly Low Escalated SRV-BACKUP-01
ALR-00079 8h ago Ransomware Behaviour Detected Medium Investigating WS-PC-006
ALR-00199 10h ago Certificate Anomaly Medium Escalated SRV-APP-01