Claroty - Policy violation

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Id	3b22ac47-e02c-4599-a37a-57f965de17be
Rulename	Claroty - Policy violation
Description	Detects Claroty policy violation events from ClarotyEvent when EventOriginalType or EventType contains ‘Policy Violation’. Use this rule to identify policy enforcement events that may indicate unauthorized discovery or prohibited network activity. This rule expects ClarotyEvent data to be available in the workspace.
Severity	High
Tactics	Discovery
Techniques	T1018 T1135
Required data connectors	CefAma
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/Claroty/Analytic Rules/ClarotyPolicyViolation.yaml
Version	1.0.4
Arm template	3b22ac47-e02c-4599-a37a-57f965de17be.json

KQL

ClarotyEvent
  | where EventOriginalType has 'Policy Violation' or EventType has 'Policy Violation'
  | project TimeGenerated, DstIpAddr, EventOriginalType, EventType
  | extend IPCustomEntity = DstIpAddr

YAML

status: Available
queryFrequency: 1h
queryPeriod: 1h
triggerOperator: gt
query: |
  ClarotyEvent
    | where EventOriginalType has 'Policy Violation' or EventType has 'Policy Violation'
    | project TimeGenerated, DstIpAddr, EventOriginalType, EventType
    | extend IPCustomEntity = DstIpAddr  
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Claroty/Analytic Rules/ClarotyPolicyViolation.yaml
tactics:
- Discovery
triggerThreshold: 0
entityMappings:
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: IPCustomEntity
requiredDataConnectors:
- connectorId: CefAma
  dataTypes:
  - CommonSecurityLog
alertDetailsOverride:
  alertDescriptionFormat: 'Claroty reported a policy violation for {{IPCustomEntity}}. EventOriginalType: {{EventOriginalType}}. EventType: {{EventType}}'
  alertDisplayNameFormat: Claroty policy violation detected for {{IPCustomEntity}}
relevantTechniques:
- T1018
- T1135
customDetails:
  EventType: EventType
  EventOriginalType: EventOriginalType
  DestinationIP: DstIpAddr
description: |
  'Detects Claroty policy violation events from ClarotyEvent when EventOriginalType or EventType contains 'Policy
  Violation'. Use this rule to identify policy enforcement events that may indicate unauthorized discovery or prohibited network
  activity. This rule expects ClarotyEvent data to be available in the workspace.'  
name: Claroty - Policy violation
version: 1.0.4
kind: Scheduled
id: 3b22ac47-e02c-4599-a37a-57f965de17be
severity: High

ARM