Contrast ADR - WAF Alert Correlation

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Id	93641436-afb3-4921-8828-ceab0d15aaab
Rulename	Contrast ADR - WAF Alert Correlation
Description	Correlates Contrast ADR security alerts with WAF logs to identify confirmed attack attempts that were either exploited or blocked. This rule helps security teams prioritize incidents by focusing on attacks that have been validated by application security monitoring.
Severity	Medium
Tactics	InitialAccess DefenseEvasion CommandAndControl
Techniques	T1190 T1211 T1008
Required data connectors	ContrastADR
Kind	Scheduled
Query frequency	5m
Query period	5m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/ContrastADR/Analytic Rules/Contrast_ADR_Confirmed_WAF.yaml
Version	1.0.0
Arm template	93641436-afb3-4921-8828-ceab0d15aaab.json

KQL

ContrastADR_CL
| where result_s =~ "exploited" or result_s =~ "blocked"
| project-rename ip_s=SourceIP
//please add you WAF table in place of ContrastWAFLogs_CL and WAF tables source IP or target IP column's inplace of ip_s and uncomment the queries below
//| join kind=inner (ContrastWAFLogs_CL | where TimeGenerated >= ago(5m)) on ip_s

YAML

query: |
  ContrastADR_CL
  | where result_s =~ "exploited" or result_s =~ "blocked"
  | project-rename ip_s=SourceIP
  //please add you WAF table in place of ContrastWAFLogs_CL and WAF tables source IP or target IP column's inplace of ip_s and uncomment the queries below
  //| join kind=inner (ContrastWAFLogs_CL | where TimeGenerated >= ago(5m)) on ip_s  
version: 1.0.0
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/ContrastADR/Analytic Rules/Contrast_ADR_Confirmed_WAF.yaml
status: Available
description: |
    'Correlates Contrast ADR security alerts with WAF logs to identify confirmed attack attempts that were either exploited or blocked. This rule helps security teams prioritize incidents by focusing on attacks that have been validated by application security monitoring.'
alertDetailsOverride:
  alertDisplayNameFormat: 'WAF Alert Confirmed {{result_s}}  by Contrast ADR on {{request_headers_referer_s}}  endpoint of {{application_name_s}} '
  alertDescriptionFormat: 'WAF Alert Confirmed {{result_s}}  by Contrast ADR on {{request_headers_referer_s}}  endpoint of {{application_name_s}} '
queryFrequency: 5m
name: Contrast ADR - WAF Alert Correlation
kind: Scheduled
triggerThreshold: 0
id: 93641436-afb3-4921-8828-ceab0d15aaab
requiredDataConnectors:
- connectorId: ContrastADR
  dataTypes:
  - ContrastADR_CL
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    reopenClosedIncident: false
    matchingMethod: Selected
    enabled: true
    lookbackDuration: PT1H
severity: Medium
eventGroupingSettings:
  aggregationKind: AlertPerResult
queryPeriod: 5m
entityMappings:
- fieldMappings:
  - columnName: SourceIP
    identifier: Address
  entityType: IP
relevantTechniques:
- T1190
- T1211
- T1008
tactics:
- InitialAccess
- DefenseEvasion
- CommandAndControl

ARM