Sentinel One - Alert from custom rule

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Id	5f37de91-ff2b-45fb-9eda-49e9f76a3942
Rulename	Sentinel One - Alert from custom rule
Description	Detects when alert from custom rule received.
Severity	High
Tactics	InitialAccess
Techniques	T1190
Required data connectors	SentinelOne
Kind	Scheduled
Query frequency	1h
Query period	1h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/SentinelOne/Analytic Rules/SentinelOneAlertFromCustomRule.yaml
Version	1.0.2
Arm template	5f37de91-ff2b-45fb-9eda-49e9f76a3942.json

KQL

SentinelOne
| where ActivityType == 3608
| extend RuleName = extract(@'Custom Rule:\s(.*?)\sin Group', 1, EventOriginalMessage)
| extend DstHostname = extract(@'detected on\s(\S+)\.', 1, EventOriginalMessage)
| extend HostCustomEntity = DstHostname

YAML

severity: High
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/SentinelOne/Analytic Rules/SentinelOneAlertFromCustomRule.yaml
id: 5f37de91-ff2b-45fb-9eda-49e9f76a3942
entityMappings:
- fieldMappings:
  - identifier: HostName
    columnName: HostCustomEntity
  entityType: Host
kind: Scheduled
status: Available
tactics:
- InitialAccess
queryFrequency: 1h
requiredDataConnectors:
- connectorId: SentinelOne
  dataTypes:
  - SentinelOne
relevantTechniques:
- T1190
version: 1.0.2
description: |
    'Detects when alert from custom rule received.'
triggerThreshold: 0
query: |
  SentinelOne
  | where ActivityType == 3608
  | extend RuleName = extract(@'Custom Rule:\s(.*?)\sin Group', 1, EventOriginalMessage)
  | extend DstHostname = extract(@'detected on\s(\S+)\.', 1, EventOriginalMessage)
  | extend HostCustomEntity = DstHostname  
queryPeriod: 1h
name: Sentinel One - Alert from custom rule

ARM