Infoblox - High Threat Level Query Not Blocked Detected

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Id	dc7af829-d716-4774-9d6f-03d9aa7c27a4
Rulename	Infoblox - High Threat Level Query Not Blocked Detected
Description	At least 1 high threat level query generated by single host in 1 hour that is not blocked or redirected. Customize query count, scheduling, responses and more. This rule depends on a parser based on a Kusto Function to work as expected called InfobloxCDC.
Severity	Medium
Tactics	Impact
Techniques	T1498 T1565
Required data connectors	InfobloxCloudDataConnector
Kind	Scheduled
Query frequency	1h
Query period	1h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Infoblox Cloud Data Connector/Analytic Rules/Infoblox-HighThreatLevelQueryNotBlockedDetected.yaml
Version	1.0.1
Arm template	dc7af829-d716-4774-9d6f-03d9aa7c27a4.json

KQL

let threshold = 1;
InfobloxCDC
| where DeviceEventClassID has_cs "RPZ"
| where ThreatLevel_Score >=80
| where InfobloxB1PolicyAction == "Log" or SimplifiedDeviceAction == "PASSTHRU"
| summarize count() by SourceIP
| where count_ > threshold
| join kind=inner (InfobloxCDC
  | where DeviceEventClassID has_cs "RPZ"
  | where ThreatLevel_Score >=80
  | where InfobloxB1PolicyAction == "Log" or SimplifiedDeviceAction == "PASSTHRU"
  ) on SourceIP

YAML

requiredDataConnectors:
- connectorId: InfobloxCloudDataConnector
  dataTypes:
  - CommonSecurityLog (InfobloxCDC)
eventGroupingSettings:
  aggregationKind: SingleAlert
triggerOperator: gt
queryFrequency: 1h
name: Infoblox - High Threat Level Query Not Blocked Detected
status: Available
queryPeriod: 1h
id: dc7af829-d716-4774-9d6f-03d9aa7c27a4
description: |
    'At least 1 high threat level query generated by single host in 1 hour that is not blocked or redirected. Customize query count, scheduling, responses and more. This rule depends on a parser based on a Kusto Function to work as expected called [**InfobloxCDC**](https://aka.ms/sentinel-InfobloxCloudDataConnector-parser).'
version: 1.0.1
severity: Medium
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Infoblox Cloud Data Connector/Analytic Rules/Infoblox-HighThreatLevelQueryNotBlockedDetected.yaml
query: |
  let threshold = 1;
  InfobloxCDC
  | where DeviceEventClassID has_cs "RPZ"
  | where ThreatLevel_Score >=80
  | where InfobloxB1PolicyAction == "Log" or SimplifiedDeviceAction == "PASSTHRU"
  | summarize count() by SourceIP
  | where count_ > threshold
  | join kind=inner (InfobloxCDC
    | where DeviceEventClassID has_cs "RPZ"
    | where ThreatLevel_Score >=80
    | where InfobloxB1PolicyAction == "Log" or SimplifiedDeviceAction == "PASSTHRU"
    ) on SourceIP  
incidentConfiguration:
  createIncident: true
kind: Scheduled
customDetails:
  SourceMACAddress: SourceMACAddress
  InfobloxB1FeedName: InfobloxB1FeedName
  InfobloxB1PolicyName: InfobloxB1PolicyName
  InfobloxB1Network: InfobloxB1Network
  InfobloxB1Action: InfobloxB1PolicyAction
entityMappings:
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: SourceIP
- entityType: Host
  fieldMappings:
  - identifier: HostName
    columnName: DeviceName
  - identifier: OSVersion
    columnName: InfobloxB1SrcOSVersion
  - identifier: FullName
    columnName: SourceUserName
- entityType: DNS
  fieldMappings:
  - identifier: DomainName
    columnName: DestinationDnsDomain
- entityType: Malware
  fieldMappings:
  - identifier: Name
    columnName: ThreatProperty
  - identifier: Category
    columnName: ThreatClass
relevantTechniques:
- T1498
- T1565
tactics:
- Impact
triggerThreshold: 0

ARM

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/dc7af829-d716-4774-9d6f-03d9aa7c27a4')]",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/dc7af829-d716-4774-9d6f-03d9aa7c27a4')]",
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
      "kind": "Scheduled",
      "apiVersion": "2022-11-01-preview",
      "properties": {
        "displayName": "Infoblox - High Threat Level Query Not Blocked Detected",
        "description": "'At least 1 high threat level query generated by single host in 1 hour that is not blocked or redirected. Customize query count, scheduling, responses and more. This rule depends on a parser based on a Kusto Function to work as expected called [**InfobloxCDC**](https://aka.ms/sentinel-InfobloxCloudDataConnector-parser).'\n",
        "severity": "Medium",
        "enabled": true,
        "query": "let threshold = 1;\nInfobloxCDC\n| where DeviceEventClassID has_cs \"RPZ\"\n| where ThreatLevel_Score >=80\n| where InfobloxB1PolicyAction == \"Log\" or SimplifiedDeviceAction == \"PASSTHRU\"\n| summarize count() by SourceIP\n| where count_ > threshold\n| join kind=inner (InfobloxCDC\n  | where DeviceEventClassID has_cs \"RPZ\"\n  | where ThreatLevel_Score >=80\n  | where InfobloxB1PolicyAction == \"Log\" or SimplifiedDeviceAction == \"PASSTHRU\"\n  ) on SourceIP\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0,
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Impact"
        ],
        "techniques": [
          "T1498",
          "T1565"
        ],
        "alertRuleTemplateName": "dc7af829-d716-4774-9d6f-03d9aa7c27a4",
        "incidentConfiguration": {
          "createIncident": true
        },
        "eventGroupingSettings": {
          "aggregationKind": "SingleAlert"
        },
        "customDetails": {
          "InfobloxB1PolicyName": "InfobloxB1PolicyName",
          "InfobloxB1FeedName": "InfobloxB1FeedName",
          "InfobloxB1Action": "InfobloxB1PolicyAction",
          "SourceMACAddress": "SourceMACAddress",
          "InfobloxB1Network": "InfobloxB1Network"
        },
        "entityMappings": [
          {
            "fieldMappings": [
              {
                "identifier": "Address",
                "columnName": "SourceIP"
              }
            ],
            "entityType": "IP"
          },
          {
            "fieldMappings": [
              {
                "identifier": "HostName",
                "columnName": "DeviceName"
              },
              {
                "identifier": "OSVersion",
                "columnName": "InfobloxB1SrcOSVersion"
              },
              {
                "identifier": "FullName",
                "columnName": "SourceUserName"
              }
            ],
            "entityType": "Host"
          },
          {
            "fieldMappings": [
              {
                "identifier": "DomainName",
                "columnName": "DestinationDnsDomain"
              }
            ],
            "entityType": "DNS"
          },
          {
            "fieldMappings": [
              {
                "identifier": "Name",
                "columnName": "ThreatProperty"
              },
              {
                "identifier": "Category",
                "columnName": "ThreatClass"
              }
            ],
            "entityType": "Malware"
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Infoblox Cloud Data Connector/Analytic Rules/Infoblox-HighThreatLevelQueryNotBlockedDetected.yaml",
        "status": "Available",
        "templateVersion": "1.0.1"
      }
    }
  ]
}