DDoS Attack IP Addresses - PPS Threshold

AzureDiagnostics 
| where ResourceType == 'PUBLICIPADDRESSES' and Category == "DDoSMitigationFlowLogs"
//sample rate of mitigation device 1:1000 so the PPS of the source is estimated to be x1000.
| summarize PPS = 1000 * count() by destPublicIpAddress_s, sec = bin(TimeGenerated, 1s), sourcePublicIpAddress_s
| summarize maxPPS = max(PPS) by destPublicIpAddress_s, sourcePublicIpAddress_s
| order by destPublicIpAddress_s, maxPPS desc
| where maxPPS > 10000

id: 6e76fd9d-8104-41eb-bad3-26054a3ad5f0
queryFrequency: 2h
eventGroupingSettings:
  aggregationKind: SingleAlert
version: 1.0.1
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Azure DDoS Protection/Analytic Rules/AttackSourcesPPSThreshold.yaml
requiredDataConnectors:
- dataTypes:
  - AzureDiagnostics
  connectorId: DDOS
query: |
  AzureDiagnostics 
  | where ResourceType == 'PUBLICIPADDRESSES' and Category == "DDoSMitigationFlowLogs"
  //sample rate of mitigation device 1:1000 so the PPS of the source is estimated to be x1000.
  | summarize PPS = 1000 * count() by destPublicIpAddress_s, sec = bin(TimeGenerated, 1s), sourcePublicIpAddress_s
  | summarize maxPPS = max(PPS) by destPublicIpAddress_s, sourcePublicIpAddress_s
  | order by destPublicIpAddress_s, maxPPS desc
  | where maxPPS > 10000  
name: DDoS Attack IP Addresses - PPS Threshold
status: Available
kind: Scheduled
description: Identifies IP addresses that generates maximal traffic rate over 10k PPS during DDoS attack mitigation
severity: Medium
triggerOperator: gt
entityMappings:
- entityType: IP
  fieldMappings:
  - columnName: sourcePublicIpAddress_s
    identifier: Address
triggerThreshold: 0
queryPeriod: 2h
tactics:
- Impact
relevantTechniques:
- T1498

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2024-01-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/6e76fd9d-8104-41eb-bad3-26054a3ad5f0')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/6e76fd9d-8104-41eb-bad3-26054a3ad5f0')]",
      "properties": {
        "alertRuleTemplateName": "6e76fd9d-8104-41eb-bad3-26054a3ad5f0",
        "customDetails": null,
        "description": "Identifies IP addresses that generates maximal traffic rate over 10k PPS during DDoS attack mitigation",
        "displayName": "DDoS Attack IP Addresses - PPS Threshold",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "sourcePublicIpAddress_s",
                "identifier": "Address"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "SingleAlert"
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Azure DDoS Protection/Analytic Rules/AttackSourcesPPSThreshold.yaml",
        "query": "AzureDiagnostics \n| where ResourceType == 'PUBLICIPADDRESSES' and Category == \"DDoSMitigationFlowLogs\"\n//sample rate of mitigation device 1:1000 so the PPS of the source is estimated to be x1000.\n| summarize PPS = 1000 * count() by destPublicIpAddress_s, sec = bin(TimeGenerated, 1s), sourcePublicIpAddress_s\n| summarize maxPPS = max(PPS) by destPublicIpAddress_s, sourcePublicIpAddress_s\n| order by destPublicIpAddress_s, maxPPS desc\n| where maxPPS > 10000\n",
        "queryFrequency": "PT2H",
        "queryPeriod": "PT2H",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Impact"
        ],
        "techniques": [
          "T1498"
        ],
        "templateVersion": "1.0.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}