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

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

ARM