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Ransomware Behaviour Detected

Medium Escalated
ALR-00496 · 2026-07-11T15:42:38Z

Description

File encryption behaviour detected on SRV-BACKUP-01. 142 files renamed with .locked extension in 30 seconds. DecoyPulse isolated endpoint.

Alert Metadata

Alert ID
ALR-00496
Timestamp
2026-07-11T15:42:38Z
Severity
Medium
Status
Escalated
Detection Source
DecoyPulse
Assigned Analyst
Sarah Chen

Endpoint Information

Hostname
SRV-BACKUP-01
User Account
a.wilson
Source IP
91.213.195.251
Destination IP
10.0.179.200
Origin Country
US United States

MITRE ATT&CK Mapping

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

Investigation Timeline

15:42:38 Event ingested by SOC365 Engine
15:42:39 EmilyAI triage started — correlation enrichment
15:42:46 EmilyAI confidence: 82% — escalated to human analyst
15:43:22 Alert assigned to analyst: Sarah Chen
15:45:02 Investigation started — querying SIEM and threat intelligence
15:49:06 Containment action taken — endpoint isolated
15:53:21 Alert resolved — remediation complete

Related Alerts

ID Time Alert Severity Status Host
ALR-00486 6h ago Phishing Email Blocked Low Resolved SRV-BACKUP-01
ALR-00284 7h ago Brute Force SSH Low Resolved SRV-BACKUP-01
ALR-00106 18h ago Credential Stuffing Attempt Medium Investigating SRV-BACKUP-01
ALR-00458 23h ago Ransomware Behaviour Detected Low Investigating WS-PC-003
ALR-00002 1d ago Ransomware Behaviour Detected Low Open WS-LAP-010