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Ransomware Behaviour Detected

High Open
ALR-00002 · 2026-05-21T09:25:43Z

Description

File encryption behaviour detected on FW-EDGE-01. 142 files renamed with .locked extension in 30 seconds. Endpoint Agent isolated endpoint.

Alert Metadata

Alert ID
ALR-00002
Timestamp
2026-05-21T09:25:43Z
Severity
High
Status
Open
Detection Source
Endpoint Agent
Assigned Analyst
James Okonkwo

Endpoint Information

Hostname
FW-EDGE-01
User Account
h.roberts
Source IP
45.224.148.160
Destination IP
10.1.165.251
Origin Country
GB United Kingdom

MITRE ATT&CK Mapping

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

Investigation Timeline

09:25:43 Event ingested by SOC365 Engine
09:25:47 EmilyAI triage started — correlation enrichment
09:25:51 EmilyAI confidence: 92% — escalated to human analyst
09:26:07 Alert assigned to analyst: James Okonkwo
09:27:58 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00224 33m ago Anomalous DNS Query Informational Resolved FW-EDGE-01
ALR-00426 6h ago Unusual Outbound Traffic Low Investigating FW-EDGE-01
ALR-00010 15h ago Ransomware Behaviour Detected Medium False Positive WS-PC-002
ALR-00012 22h ago Ransomware Behaviour Detected Medium Open WS-PC-004
ALR-00375 1d ago Suspicious PowerShell Execution Informational False Positive FW-EDGE-01