Ransom Protect User Blocked

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Id	d5d4766b-e547-44da-9d85-48ff393db201
Rulename	Ransom Protect User Blocked
Description	Detects malicious users blocked by CTERA Ransom Protect AI engine.
Severity	High
Tactics	Impact
Techniques	T1486
Required data connectors	CTERA
Kind	NRT
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CTERA/Analytic Rules/RansomwareUserBlocked.yaml
Version	1.0.2
Arm template	d5d4766b-e547-44da-9d85-48ff393db201.json

KQL

Syslog
| where SyslogMessage contains "Ransom Protect mechanism blocked"
| extend 
    Portal = extract("portal:(\\w+)", 1, SyslogMessage),
    EdgeFiler = extract("Edge Filer:(\\w+-\\d+)", 1, SyslogMessage),
    IP = extract("IP:([0-9.]+)", 1, SyslogMessage),
    User = extract("user:(\\w+)", 1, SyslogMessage),
    BlockedTime = extract("at ([^ ]+)", 1, SyslogMessage)
| project TimeGenerated, Portal, EdgeFiler, IP, User, BlockedTime

YAML

version: 1.0.2
status: Available
entityMappings:
- entityType: Account
  fieldMappings:
  - columnName: User
    identifier: FullName
- entityType: IP
  fieldMappings:
  - columnName: IP
    identifier: Address
relevantTechniques:
- T1486
alertDetailsOverride:
  alertDescriptionFormat: CTERA Ransom Protect blocked a malicious user at {{TimeGenerated}}.
  alertnameFormat: CTERA Ransom Protect User Blocked
description: Detects malicious users blocked by CTERA Ransom Protect AI engine.
kind: NRT
name: Ransom Protect User Blocked
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CTERA/Analytic Rules/RansomwareUserBlocked.yaml
id: d5d4766b-e547-44da-9d85-48ff393db201
requiredDataConnectors:
- connectorId: CTERA
  dataTypes:
  - Syslog
tactics:
- Impact
suppressionEnabled: false
severity: High
query: |
  Syslog
  | where SyslogMessage contains "Ransom Protect mechanism blocked"
  | extend 
      Portal = extract("portal:(\\w+)", 1, SyslogMessage),
      EdgeFiler = extract("Edge Filer:(\\w+-\\d+)", 1, SyslogMessage),
      IP = extract("IP:([0-9.]+)", 1, SyslogMessage),
      User = extract("user:(\\w+)", 1, SyslogMessage),
      BlockedTime = extract("at ([^ ]+)", 1, SyslogMessage)
  | project TimeGenerated, Portal, EdgeFiler, IP, User, BlockedTime  
customDetails:
  EdgeFiler: EdgeFiler
eventGroupingSettings:
  aggregationKind: SingleAlert
suppressionDuration: PT5H
incidentConfiguration:
  groupingConfiguration:
    enabled: false
    reopenClosedIncident: false
    lookbackDuration: PT5H
    matchingMethod: AllEntities
  createIncident: true

ARM