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Ransomware Behaviour Detected

Critical Open
ALR-00357 · 2026-07-09T21:24:35Z

Description

File encryption behaviour detected on WS-PC-002. 142 files renamed with .locked extension in 30 seconds. Firewall isolated endpoint.

Alert Metadata

Alert ID
ALR-00357
Timestamp
2026-07-09T21:24:35Z
Severity
Critical
Status
Open
Detection Source
Firewall
Assigned Analyst
James Okonkwo

Endpoint Information

Hostname
WS-PC-002
User Account
system
Source IP
103.212.216.113
Destination IP
10.1.102.185
Origin Country
UA Ukraine

MITRE ATT&CK Mapping

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

Investigation Timeline

21:24:35 Event ingested by SOC365 Engine
21:24:40 EmilyAI triage started — correlation enrichment
21:24:45 EmilyAI confidence: 84% — escalated to human analyst
21:25:10 Alert assigned to analyst: James Okonkwo
21:27:12 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00002 1h ago Data Exfiltration Attempt Informational Resolved WS-PC-002
ALR-00090 2h ago Credential Stuffing Attempt Informational Escalated WS-PC-002
ALR-00284 3h ago Shadow IT Discovery High Escalated WS-PC-002
ALR-00242 14h ago Ransomware Behaviour Detected Low Investigating SRV-FILE-01
ALR-00340 16h ago Insider Threat Indicator Medium Open WS-PC-002