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Ransomware Behaviour Detected

Informational Investigating
ALR-00400 · 2026-10-05T11:22:43Z

Description

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

Alert Metadata

Alert ID
ALR-00400
Timestamp
2026-10-05T11:22:43Z
Severity
Informational
Status
Investigating
Detection Source
Dark Web Monitor
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
WS-PC-003
User Account
n.clark
Source IP
185.137.220.122
Destination IP
10.2.16.49
Origin Country
UA Ukraine

MITRE ATT&CK Mapping

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

Investigation Timeline

11:22:43 Event ingested by SOC365 Engine
11:22:47 EmilyAI triage started — correlation enrichment
11:22:54 EmilyAI confidence: 97% — escalated to human analyst
11:23:26 Alert assigned to analyst: EmilyAI (auto)
11:24:25 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00073 8h ago Anomalous DNS Query Medium False Positive WS-PC-003
ALR-00053 13h ago Ransomware Behaviour Detected Low Resolved WS-LAP-012
ALR-00466 20h ago Anomalous DNS Query Medium Escalated WS-PC-003
ALR-00134 1d ago Ransomware Behaviour Detected Informational Resolved WS-PC-001
ALR-00194 1d ago Ransomware Behaviour Detected Medium False Positive WS-PC-004