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

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

ARM