Imperva - Request from unexpected IP address to admin panel

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Id	427c025d-c068-4844-8205-66879e89bcfa
Rulename	Imperva - Request from unexpected IP address to admin panel
Description	Detects requests from unexpected IP addresses to admin panel.
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/ImpervaAdminPanelUncommonIp.yaml
Version	1.0.1
Arm template	427c025d-c068-4844-8205-66879e89bcfa.json

KQL

ImpervaWAFCloud
| where QueryString contains @'/admin'
| where ipv4_is_private(SrcIpAddr) == False
| extend IPCustomEntity = SrcIpAddr

YAML

name: Imperva - Request from unexpected IP address to admin panel
tactics:
- InitialAccess
kind: Scheduled
description: |
    'Detects requests from unexpected IP addresses to admin panel.'
entityMappings:
- entityType: IP
  fieldMappings:
  - columnName: IPCustomEntity
    identifier: Address
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/ImpervaCloudWAF/Analytic Rules/ImpervaAdminPanelUncommonIp.yaml
version: 1.0.1
triggerThreshold: 0
queryFrequency: 10m
triggerOperator: gt
relevantTechniques:
- T1190
- T1133
requiredDataConnectors:
- connectorId: ImpervaWAFCloudAPI
  dataTypes:
  - ImpervaWAFCloud
severity: High
queryPeriod: 10m
status: Available
query: |
  ImpervaWAFCloud
  | where QueryString contains @'/admin'
  | where ipv4_is_private(SrcIpAddr) == False
  | extend IPCustomEntity = SrcIpAddr  
id: 427c025d-c068-4844-8205-66879e89bcfa

ARM

{
  "$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/427c025d-c068-4844-8205-66879e89bcfa')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/427c025d-c068-4844-8205-66879e89bcfa')]",
      "properties": {
        "alertRuleTemplateName": "427c025d-c068-4844-8205-66879e89bcfa",
        "customDetails": null,
        "description": "'Detects requests from unexpected IP addresses to admin panel.'\n",
        "displayName": "Imperva - Request from unexpected IP address to admin panel",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "IPCustomEntity",
                "identifier": "Address"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/ImpervaCloudWAF/Analytic Rules/ImpervaAdminPanelUncommonIp.yaml",
        "query": "ImpervaWAFCloud\n| where QueryString contains @'/admin'\n| where ipv4_is_private(SrcIpAddr) == False\n| extend IPCustomEntity = SrcIpAddr\n",
        "queryFrequency": "PT10M",
        "queryPeriod": "PT10M",
        "severity": "High",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "InitialAccess"
        ],
        "techniques": [
          "T1133",
          "T1190"
        ],
        "templateVersion": "1.0.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}