Imperva - Critical severity event not blocked

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Id	4d365217-f96a-437c-9c57-53594fa261c3
Rulename	Imperva - Critical severity event not blocked
Description	Detects when critical severity event was not blocked.
Severity	High
Tactics	InitialAccess
Techniques	T1190 T1133
Required data connectors	ImpervaWAFCloudAPI
Kind	Scheduled
Query frequency	10m
Query period	10m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/ImpervaCloudWAF/Analytic Rules/ImpervaAttackNotBlocked.yaml
Version	1.0.1
Arm template	4d365217-f96a-437c-9c57-53594fa261c3.json

KQL

ImpervaWAFCloud
| where EventSeverity =~ 'CRITICAL'
| where DvcAction !startswith 'REQ_BLOCKED' or DvcAction !startswith 'REQ_BAD_'
| extend IPCustomEntity = SrcIpAddr

YAML

requiredDataConnectors:
- dataTypes:
  - ImpervaWAFCloud
  connectorId: ImpervaWAFCloudAPI
queryPeriod: 10m
triggerThreshold: 0
queryFrequency: 10m
version: 1.0.1
status: Available
severity: High
description: |
    'Detects when critical severity event was not blocked.'
name: Imperva - Critical severity event not blocked
entityMappings:
- fieldMappings:
  - identifier: Address
    columnName: IPCustomEntity
  entityType: IP
triggerOperator: gt
id: 4d365217-f96a-437c-9c57-53594fa261c3
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/ImpervaCloudWAF/Analytic Rules/ImpervaAttackNotBlocked.yaml
tactics:
- InitialAccess
relevantTechniques:
- T1190
- T1133
kind: Scheduled
query: |
  ImpervaWAFCloud
  | where EventSeverity =~ 'CRITICAL'
  | where DvcAction !startswith 'REQ_BLOCKED' or DvcAction !startswith 'REQ_BAD_'
  | extend IPCustomEntity = SrcIpAddr

ARM