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	ContrastADRCCF
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	1.0.1
Arm template	93641436-afb3-4921-8828-ceab0d15aaab.json

KQL

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

YAML

name: Contrast ADR - WAF Alert Correlation
incidentConfiguration:
  groupingConfiguration:
    reopenClosedIncident: false
    enabled: true
    matchingMethod: Selected
    groupByEntities:
    - IP
    lookbackDuration: PT1H
  createIncident: true
query: |
  ContrastADRAttackEvents_CL
  | where result =~ "exploited" or result =~ "blocked"
  | project-rename ip=sourceIp
  //please add you WAF table in place of ContrastWAFLogs_CL and WAF tables source IP or target IP column's inplace of ip and uncomment the queries below
  //| join kind=inner (ContrastWAFLogs_CL | where TimeGenerated >= ago(5m)) on ip  
entityMappings:
- entityType: IP
  fieldMappings:
  - columnName: ip
    identifier: Address
queryPeriod: 5m
version: 1.0.1
tactics:
- InitialAccess
- DefenseEvasion
- CommandAndControl
triggerOperator: gt
kind: Scheduled
triggerThreshold: 0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/ContrastADR/Analytic Rules/Contrast_ADR_Confirmed_WAF.yaml
eventGroupingSettings:
  aggregationKind: AlertPerResult
alertDetailsOverride:
  alertDescriptionFormat: 'WAF Alert Confirmed {{result}}  by Contrast ADR on {{request_headers_referer}}  endpoint of {{application_name}} '
  alertDisplayNameFormat: 'WAF Alert Confirmed {{result}}  by Contrast ADR on {{request_headers_referer}}  endpoint of {{application_name}} '
relevantTechniques:
- T1190
- T1211
- T1008
id: 93641436-afb3-4921-8828-ceab0d15aaab
severity: Medium
requiredDataConnectors:
- connectorId: ContrastADRCCF
  dataTypes:
  - ContrastADRAttackEvents_CL
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.'
queryFrequency: 5m

ARM