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Policy Rule
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{
"properties": {
"displayName": "Deploy prerequisites to audit Windows VMs configurations in 'System Audit Policies - Account Logon'",
"policyType": "BuiltIn",
"mode": "Indexed",
"description": "This policy creates a Guest Configuration assignment to audit Windows virtual machines with non-compliant settings in Group Policy category: 'System Audit Policies - Account Logon'. It also creates a system-assigned managed identity and deploys the VM extension for Guest Configuration. This policy should only be used along with its corresponding audit policy in an initiative. For more information on Guest Configuration policies, please visit https://aka.ms/gcpol",
"metadata": {
"version": "1.2.0",
"category": "Guest Configuration",
"requiredProviders": [
"Microsoft.GuestConfiguration"
]
},
"parameters": {
"AuditCredentialValidation": {
"type": "String",
"metadata": {
"displayName": "Audit Credential Validation",
"description": "Specifies whether audit events are generated when credentials are submitted for a user account logon request. This setting is especially useful for monitoring unsuccessful attempts, to find brute-force attacks, account enumeration, and potential account compromise events on domain controllers."
},
"allowedValues": [
"No Auditing",
"Success",
"Failure",
"Success and Failure"
],
"defaultValue": "Success and Failure"
}
},
"policyRule": {
"if": {
"anyOf": [
{
"allOf": [
{
"field": "type",
"equals": "Microsoft.Compute/virtualMachines"
},
{
"anyOf": [
{
"field": "Microsoft.Compute/imagePublisher",
"in": [
"esri",
"incredibuild",
"MicrosoftDynamicsAX",
"MicrosoftSharepoint",
"MicrosoftVisualStudio",
"MicrosoftWindowsDesktop",
"MicrosoftWindowsServerHPCPack"
]
},
{
"allOf": [
{
"field": "Microsoft.Compute/imagePublisher",
"equals": "MicrosoftWindowsServer"
},
{
"field": "Microsoft.Compute/imageSKU",
"notLike": "2008*"
}
]
},
{
"allOf": [
{
"field": "Microsoft.Compute/imagePublisher",
"equals": "MicrosoftSQLServer"
},
{
"field": "Microsoft.Compute/imageOffer",
"notLike": "SQL2008*"
}
]
},
{
"allOf": [
{
"field": "Microsoft.Compute/imagePublisher",
"equals": "microsoft-dsvm"
},
{
"field": "Microsoft.Compute/imageOffer",
"equals": "dsvm-windows"
}
]
},
{
"allOf": [
{
"field": "Microsoft.Compute/imagePublisher",
"equals": "microsoft-ads"
},
{
"field": "Microsoft.Compute/imageOffer",
"in": [
"standard-data-science-vm",
"windows-data-science-vm"
]
}
]
},
{
"allOf": [
{
"field": "Microsoft.Compute/imagePublisher",
"equals": "batch"
},
{
"field": "Microsoft.Compute/imageOffer",
"equals": "rendering-windows2016"
}
]
},
{
"allOf": [
{
"field": "Microsoft.Compute/imagePublisher",
"equals": "center-for-internet-security-inc"
},
{
"field": "Microsoft.Compute/imageOffer",
"like": "cis-windows-server-201*"
}
]
},
{
"allOf": [
{
"field": "Microsoft.Compute/imagePublisher",
"equals": "pivotal"
},
{
"field": "Microsoft.Compute/imageOffer",
"like": "bosh-windows-server*"
}
]
},
{
"allOf": [
{
"field": "Microsoft.Compute/imagePublisher",
"equals": "cloud-infrastructure-services"
},
{
"field": "Microsoft.Compute/imageOffer",
"like": "ad*"
}
]
},
{
"allOf": [
{
"anyOf": [
{
"field": "Microsoft.Compute/virtualMachines/osProfile.windowsConfiguration",
"exists": "true"
},
{
"field": "Microsoft.Compute/virtualMachines/storageProfile.osDisk.osType",
"like": "Windows*"
}
]
},
{
"anyOf": [
{
"field": "Microsoft.Compute/imageSKU",
"exists": "false"
},
{
"allOf": [
{
"field": "Microsoft.Compute/imageSKU",
"notLike": "2008*"
},
{
"field": "Microsoft.Compute/imageOffer",
"notLike": "SQL2008*"
}
]
}
]
}
]
}
]
}
]
},
{
"allOf": [
{
"field": "type",
"equals": "Microsoft.HybridCompute/machines"
},
{
"field": "Microsoft.HybridCompute/imageOffer",
"like": "windows*"
}
]
}
]
},
"then": {
"effect": "deployIfNotExists",
"details": {
"roleDefinitionIds": [
"/providers/microsoft.authorization/roleDefinitions/b24988ac-6180-42a0-ab88-20f7382dd24c"
],
"type": "Microsoft.GuestConfiguration/guestConfigurationAssignments",
"name": "AzureBaseline_SystemAuditPoliciesAccountLogon",
"existenceCondition": {
"field": "Microsoft.GuestConfiguration/guestConfigurationAssignments/parameterHash",
"equals": "[base64(concat('Audit Credential Validation;ExpectedValue', '=', parameters('AuditCredentialValidation')))]"
},
"deployment": {
"properties": {
"mode": "incremental",
"parameters": {
"vmName": {
"value": "[field('name')]"
},
"location": {
"value": "[field('location')]"
},
"type": {
"value": "[field('type')]"
},
"configurationName": {
"value": "AzureBaseline_SystemAuditPoliciesAccountLogon"
},
"AuditCredentialValidation": {
"value": "[parameters('AuditCredentialValidation')]"
}
},
"template": {
"$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"vmName": {
"type": "string"
},
"location": {
"type": "string"
},
"type": {
"type": "string"
},
"configurationName": {
"type": "string"
},
"AuditCredentialValidation": {
"type": "string"
}
},
"resources": [
{
"condition": "[equals(toLower(parameters('type')), toLower('microsoft.hybridcompute/machines'))]",
"apiVersion": "2018-11-20",
"type": "Microsoft.HybridCompute/machines/providers/guestConfigurationAssignments",
"name": "[concat(parameters('vmName'), '/Microsoft.GuestConfiguration/', parameters('configurationName'))]",
"location": "[parameters('location')]",
"properties": {
"guestConfiguration": {
"name": "[parameters('configurationName')]",
"version": "1.*",
"configurationParameter": [
{
"name": "Audit Credential Validation;ExpectedValue",
"value": "[parameters('AuditCredentialValidation')]"
}
]
}
}
},
{
"condition": "[equals(toLower(parameters('type')), toLower('Microsoft.Compute/virtualMachines'))]",
"apiVersion": "2018-11-20",
"type": "Microsoft.Compute/virtualMachines/providers/guestConfigurationAssignments",
"name": "[concat(parameters('vmName'), '/Microsoft.GuestConfiguration/', parameters('configurationName'))]",
"location": "[parameters('location')]",
"properties": {
"guestConfiguration": {
"name": "[parameters('configurationName')]",
"version": "1.*",
"configurationParameter": [
{
"name": "Audit Credential Validation;ExpectedValue",
"value": "[parameters('AuditCredentialValidation')]"
}
]
}
}
},
{
"condition": "[equals(toLower(parameters('type')), toLower('Microsoft.Compute/virtualMachines'))]",
"apiVersion": "2019-07-01",
"type": "Microsoft.Compute/virtualMachines",
"identity": {
"type": "SystemAssigned"
},
"name": "[parameters('vmName')]",
"location": "[parameters('location')]"
},
{
"condition": "[equals(toLower(parameters('type')), toLower('Microsoft.Compute/virtualMachines'))]",
"apiVersion": "2019-07-01",
"name": "[concat(parameters('vmName'), '/AzurePolicyforWindows')]",
"type": "Microsoft.Compute/virtualMachines/extensions",
"location": "[parameters('location')]",
"properties": {
"publisher": "Microsoft.GuestConfiguration",
"type": "ConfigurationforWindows",
"typeHandlerVersion": "1.1",
"autoUpgradeMinorVersion": true,
"settings": {
},
"protectedSettings": {
}
},
"dependsOn": [
"[concat('Microsoft.Compute/virtualMachines/',parameters('vmName'),'/providers/Microsoft.GuestConfiguration/guestConfigurationAssignments/',parameters('configurationName'))]"
]
}
]
}
}
}
}
}
}
},
"id": "/providers/Microsoft.Authorization/policyDefinitions/c1e289c0-ffad-475d-a924-adc058765d65",
"type": "Microsoft.Authorization/policyDefinitions",
"name": "c1e289c0-ffad-475d-a924-adc058765d65"
}
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