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Ransomware Behaviour Detected

Low Open
ALR-00338 · 2026-05-27T10:44:49Z

Description

File encryption behaviour detected on SW-CORE-01. 142 files renamed with .locked extension in 30 seconds. Email Gateway isolated endpoint.

Alert Metadata

Alert ID
ALR-00338
Timestamp
2026-05-27T10:44:49Z
Severity
Low
Status
Open
Detection Source
Email Gateway
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
SW-CORE-01
User Account
a.wilson
Source IP
103.165.216.128
Destination IP
10.2.167.252
Origin Country
FR France

MITRE ATT&CK Mapping

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

Investigation Timeline

10:44:49 Event ingested by SOC365 Engine
10:44:51 EmilyAI triage started — correlation enrichment
10:44:54 EmilyAI confidence: 80% — escalated to human analyst
10:45:30 Alert assigned to analyst: EmilyAI (auto)
10:47:38 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00086 1h ago Ransomware Behaviour Detected Informational False Positive SRV-BACKUP-01
ALR-00293 3h ago Ransomware Behaviour Detected Low False Positive WS-LAP-012
ALR-00148 5h ago Ransomware Behaviour Detected Low Investigating SRV-SQL-01
ALR-00344 5h ago Malware Signature Match Low Investigating SW-CORE-01
ALR-00399 13h ago Ransomware Behaviour Detected Low Resolved WS-LAP-012