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Ransomware Behaviour Detected

Informational False Positive
ALR-00284 · 2026-05-23T23:17:46Z

Description

File encryption behaviour detected on WS-PC-003. 142 files renamed with .locked extension in 30 seconds. EmilyAI Triage isolated endpoint.

Alert Metadata

Alert ID
ALR-00284
Timestamp
2026-05-23T23:17:46Z
Severity
Informational
Status
False Positive
Detection Source
EmilyAI Triage
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
WS-PC-003
User Account
d.walker
Source IP
185.63.220.33
Destination IP
10.1.229.200
Origin Country
NL Netherlands

MITRE ATT&CK Mapping

Tactic
Impact
Technique
T1486
Reference
attack.mitre.org/techniques/T1486

Investigation Timeline

23:17:46 Event ingested by SOC365 Engine
23:17:47 EmilyAI triage started — correlation enrichment
23:17:57 EmilyAI confidence: 98% — escalated to human analyst
23:18:18 Alert assigned to analyst: EmilyAI (auto)
23:19:30 Investigation started — querying SIEM and threat intelligence
23:26:15 Containment action taken — endpoint isolated
23:34:45 Alert resolved — remediation complete

Related Alerts

ID Time Alert Severity Status Host
ALR-00365 56m ago Ransomware Behaviour Detected Informational Investigating WS-PC-003
ALR-00165 12h ago Unusual Outbound Traffic Informational Resolved WS-PC-003
ALR-00257 14h ago Ransomware Behaviour Detected Low Escalated WS-LAP-012
ALR-00274 14h ago Certificate Anomaly Low Open WS-PC-003
ALR-00140 15h ago Phishing Email Blocked Informational Open WS-PC-003