Tenablead Active Directory attacks pathways

// For the query to work properly, make sure you have imported the afad_parser.kql parser into the workspace
// Retrieve the parser here: https://raw.githubusercontent.com/tenable/Azure-Sentinel/Tenable.ad-connector/Solutions/TenableAD/Parsers/afad_parser.kql
// Then, create the Kusto Function with alias afad_parser
let SeverityTable=datatable(Severity:string,Level:int) [
"low", 1,
"medium", 2,
"high", 3,
"critical", 4
];
let codeNameList = datatable(Codename:string)["C-PRIV-ACCOUNTS-SPN", "C-SDPROP-CONSISTENCY", "C-DANG-PRIMGROUPID", "C-GPO-HARDENING", "C-DC-ACCESS-CONSISTENCY", "C-DANGEROUS-TRUST-RELATIONSHIP", "C-UNCONST-DELEG", "C-ABNORMAL-ENTRIES-IN-SCHEMA"];
afad_parser
| where MessageType == 0 and Codename in~ (codeNameList)
| lookup kind=leftouter SeverityTable on Severity
| order by Level
| extend HostName = tostring(split(Host, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Host, '.'), 1, -1), '.'))

description: |
    'Searches for triggered Indicators of Exposures related to Active Directory attacks pathways.'
id: 4639bb0a-ca12-4a57-8e53-f61c2c6034d6
requiredDataConnectors:
- connectorId: Tenable.ad
  dataTypes:
  - Tenable_ad_CL
version: 1.0.1
relevantTechniques:
- T1110
tactics:
- CredentialAccess
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/TenableAD/Analytic Rules/TenableAdADAttacksPathways.yaml
kind: Scheduled
severity: Low
entityMappings:
- fieldMappings:
  - columnName: HostName
    identifier: HostName
  - columnName: DnsDomain
    identifier: DnsDomain
  entityType: Host
triggerThreshold: 0
queryFrequency: 2h
queryPeriod: 2h
triggerOperator: gt
query: |
  // For the query to work properly, make sure you have imported the afad_parser.kql parser into the workspace
  // Retrieve the parser here: https://raw.githubusercontent.com/tenable/Azure-Sentinel/Tenable.ad-connector/Solutions/TenableAD/Parsers/afad_parser.kql
  // Then, create the Kusto Function with alias afad_parser
  let SeverityTable=datatable(Severity:string,Level:int) [
  "low", 1,
  "medium", 2,
  "high", 3,
  "critical", 4
  ];
  let codeNameList = datatable(Codename:string)["C-PRIV-ACCOUNTS-SPN", "C-SDPROP-CONSISTENCY", "C-DANG-PRIMGROUPID", "C-GPO-HARDENING", "C-DC-ACCESS-CONSISTENCY", "C-DANGEROUS-TRUST-RELATIONSHIP", "C-UNCONST-DELEG", "C-ABNORMAL-ENTRIES-IN-SCHEMA"];
  afad_parser
  | where MessageType == 0 and Codename in~ (codeNameList)
  | lookup kind=leftouter SeverityTable on Severity
  | order by Level
  | extend HostName = tostring(split(Host, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Host, '.'), 1, -1), '.'))  
name: Tenable.ad Active Directory attacks pathways

{
  "$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/4639bb0a-ca12-4a57-8e53-f61c2c6034d6')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/4639bb0a-ca12-4a57-8e53-f61c2c6034d6')]",
      "properties": {
        "alertRuleTemplateName": "4639bb0a-ca12-4a57-8e53-f61c2c6034d6",
        "customDetails": null,
        "description": "'Searches for triggered Indicators of Exposures related to Active Directory attacks pathways.'\n",
        "displayName": "Tenable.ad Active Directory attacks pathways",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "HostName",
                "identifier": "HostName"
              },
              {
                "columnName": "DnsDomain",
                "identifier": "DnsDomain"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/TenableAD/Analytic Rules/TenableAdADAttacksPathways.yaml",
        "query": "// For the query to work properly, make sure you have imported the afad_parser.kql parser into the workspace\n// Retrieve the parser here: https://raw.githubusercontent.com/tenable/Azure-Sentinel/Tenable.ad-connector/Solutions/TenableAD/Parsers/afad_parser.kql\n// Then, create the Kusto Function with alias afad_parser\nlet SeverityTable=datatable(Severity:string,Level:int) [\n\"low\", 1,\n\"medium\", 2,\n\"high\", 3,\n\"critical\", 4\n];\nlet codeNameList = datatable(Codename:string)[\"C-PRIV-ACCOUNTS-SPN\", \"C-SDPROP-CONSISTENCY\", \"C-DANG-PRIMGROUPID\", \"C-GPO-HARDENING\", \"C-DC-ACCESS-CONSISTENCY\", \"C-DANGEROUS-TRUST-RELATIONSHIP\", \"C-UNCONST-DELEG\", \"C-ABNORMAL-ENTRIES-IN-SCHEMA\"];\nafad_parser\n| where MessageType == 0 and Codename in~ (codeNameList)\n| lookup kind=leftouter SeverityTable on Severity\n| order by Level\n| extend HostName = tostring(split(Host, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Host, '.'), 1, -1), '.'))\n",
        "queryFrequency": "PT2H",
        "queryPeriod": "PT2H",
        "severity": "Low",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CredentialAccess"
        ],
        "techniques": [
          "T1110"
        ],
        "templateVersion": "1.0.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}