Microsoft Sentinel Analytic Rules
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Tenablead privileged accounts issues

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Id353d6474-d795-4086-a179-ba1db4d8bbcb
RulenameTenable.ad privileged accounts issues
DescriptionSearches for triggered Indicators of Exposures related to privileged accounts issues.
SeverityLow
TacticsCredentialAccess
TechniquesT1110
Required data connectorsTenable.ad
KindScheduled
Query frequency2h
Query period2h
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/TenableAD/Analytic Rules/TenableAdPrivilegedAccountIssues.yaml
Version1.0.1
Arm template353d6474-d795-4086-a179-ba1db4d8bbcb.json
Deploy To Azure
// 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-NATIVE-ADM-GROUP-MEMBERS", "C-KRBTGT-PASSWORD", "C-PROTECTED-USERS-GROUP-UNUSED", "C-ADMINCOUNT-ACCOUNT-PROPS", "C-ADM-ACC-USAGE", "C-LAPS-UNSECURE-CONFIG", "C-DISABLED-ACCOUNTS-PRIV-GROUPS"];
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), '.'))
kind: Scheduled
id: 353d6474-d795-4086-a179-ba1db4d8bbcb
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-NATIVE-ADM-GROUP-MEMBERS", "C-KRBTGT-PASSWORD", "C-PROTECTED-USERS-GROUP-UNUSED", "C-ADMINCOUNT-ACCOUNT-PROPS", "C-ADM-ACC-USAGE", "C-LAPS-UNSECURE-CONFIG", "C-DISABLED-ACCOUNTS-PRIV-GROUPS"];
  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), '.'))  
queryFrequency: 2h
severity: Low
requiredDataConnectors:
- dataTypes:
  - Tenable_ad_CL
  connectorId: Tenable.ad
queryPeriod: 2h
version: 1.0.1
description: |
    'Searches for triggered Indicators of Exposures related to privileged accounts issues.'
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/TenableAD/Analytic Rules/TenableAdPrivilegedAccountIssues.yaml
entityMappings:
- entityType: Host
  fieldMappings:
  - columnName: HostName
    identifier: HostName
  - columnName: DnsDomain
    identifier: DnsDomain
triggerOperator: gt
triggerThreshold: 0
tactics:
- CredentialAccess
name: Tenable.ad privileged accounts issues
relevantTechniques:
- T1110
{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2023-02-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/353d6474-d795-4086-a179-ba1db4d8bbcb')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/353d6474-d795-4086-a179-ba1db4d8bbcb')]",
      "properties": {
        "alertRuleTemplateName": "353d6474-d795-4086-a179-ba1db4d8bbcb",
        "customDetails": null,
        "description": "'Searches for triggered Indicators of Exposures related to privileged accounts issues.'\n",
        "displayName": "Tenable.ad privileged accounts issues",
        "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/TenableAdPrivilegedAccountIssues.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-NATIVE-ADM-GROUP-MEMBERS\", \"C-KRBTGT-PASSWORD\", \"C-PROTECTED-USERS-GROUP-UNUSED\", \"C-ADMINCOUNT-ACCOUNT-PROPS\", \"C-ADM-ACC-USAGE\", \"C-LAPS-UNSECURE-CONFIG\", \"C-DISABLED-ACCOUNTS-PRIV-GROUPS\"];\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",
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CredentialAccess"
        ],
        "techniques": [
          "T1110"
        ],
        "templateVersion": "1.0.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}