SentinelAlertRule

Parameters

Parameter	Attribute	DataType	Description	Allowed Values
DisplayName	Key	String	The display name of the indicator
SubscriptionId	Write	String	The name of the resource group. The name is case insensitive.
ResourceGroupName	Write	String	The name of the resource group. The name is case insensitive.
WorkspaceName	Write	String	The name of the workspace.
Id	Write	String	The unique id of the indicator.
Description	Write	String	The name of the workspace.
ProductFilter	Write	String	The alerts' productName on which the cases will be generated
Enabled	Write	Boolean	Determines whether this alert rule is enabled or disabled.
Severity	Write	String	The severity for alerts created by this alert rule.
Tactics	Write	StringArray[]	The tactics of the alert rule
Techniques	Write	StringArray[]	The techniques of the alert rule
SubTechniques	Write	StringArray[]	The sub-techniques of the alert rule
Query	Write	String	The query that creates alerts for this rule.
QueryFrequency	Write	String	The frequency (in ISO 8601 duration format) for this alert rule to run.
QueryPeriod	Write	String	The period (in ISO 8601 duration format) that this alert rule looks at.
TriggerOperator	Write	String	The operation against the threshold that triggers alert rule.
TriggerThreshold	Write	UInt32	The threshold triggers this alert rule.
SuppressionDuration	Write	String	The suppression (in ISO 8601 duration format) to wait since last time this alert rule been triggered.
SuppressionEnabled	Write	String	Determines whether the suppression for this alert rule is enabled or disabled.
AlertRuleTemplateName	Write	String	The Name of the alert rule template used to create this rule.
DisplayNamesExcludeFilter	Write	StringArray[]	The alerts' displayNames on which the cases will not be generated.
DisplayNamesFilter	Write	StringArray[]	The alerts' displayNames on which the cases will be generated.
SeveritiesFilter	Write	StringArray[]	The alerts' severities on which the cases will be generated
EventGroupingSettings	Write	MSFT_SentinelAlertRuleEventGroupingSettings	The event grouping settings.
CustomDetails	Write	MSFT_SentinelAlertRuleCustomDetails[]	Dictionary of string key-value pairs of columns to be attached to the alert
EntityMappings	Write	MSFT_SentinelAlertRuleEntityMapping[]	Array of the entity mappings of the alert rule
AlertDetailsOverride	Write	MSFT_SentinelAlertRuleAlertDetailsOverride	The alert details override settings
IncidentConfiguration	Write	MSFT_SentinelAlertRuleIncidentConfiguration	The settings of the incidents that created from alerts triggered by this analytics rule
Kind	Write	String	The kind of the alert rule
Ensure	Write	String	Present ensures the instance exists, absent ensures it is removed.	Absent, Present
Credential	Write	PSCredential	Credentials of the workload's Admin
ApplicationId	Write	String	Id of the Azure Active Directory application to authenticate with.
TenantId	Write	String	Id of the Azure Active Directory tenant used for authentication.
CertificateThumbprint	Write	String	Thumbprint of the Azure Active Directory application's authentication certificate to use for authentication.
ManagedIdentity	Write	Boolean	Managed ID being used for authentication.
AccessTokens	Write	StringArray[]	Access token used for authentication.

MSFT_SentinelAlertRuleEventGroupingSettings

Parameters

Parameter	Attribute	DataType	Description	Allowed Values
aggregationKind	Write	String	The event grouping aggregation kinds

MSFT_SentinelAlertRuleCustomDetails

Parameters

Parameter	Attribute	DataType	Description	Allowed Values
DetailKey	Write	String	Key of the custom detail.
DetailValue	Write	String	Associated value with the custom detail.

MSFT_SentinelAlertRuleEntityMapping

Parameters

Parameter	Attribute	DataType	Description	Allowed Values
entityType	Write	String	Type of entity.
fieldMappings	Write	MSFT_SentinelAlertRuleEntityMappingFieldMapping[]	List of field mappings.

MSFT_SentinelAlertRuleEntityMappingFieldMapping

Parameters

Parameter	Attribute	DataType	Description	Allowed Values
columnName	Write	String	Name of the column
identifier	Write	String	Identifier of the associated field.

MSFT_SentinelAlertRuleAlertDetailsOverride

Parameters

Parameter	Attribute	DataType	Description	Allowed Values
alertDescriptionFormat	Write	String	The format containing columns name(s) to override the alert description
alertDisplayNameFormat	Write	String	The format containing columns name(s) to override the alert name
alertSeverityColumnName	Write	String	The column name to take the alert severity from
alertTacticsColumnName	Write	String	The column name to take the alert tactics from
alertDynamicProperties	Write	MSFT_SentinelAlertRuleAlertDetailsOverrideAlertDynamicProperty[]	List of additional dynamic properties to override

MSFT_SentinelAlertRuleAlertDetailsOverrideAlertDynamicProperty

Parameters

Parameter	Attribute	DataType	Description	Allowed Values
alertProperty	Write	String	Dynamic property key.
alertPropertyValue	Write	String	Dynamic property value.

MSFT_SentinelAlertRuleIncidentConfiguration

Parameters

Parameter	Attribute	DataType	Description	Allowed Values
createIncident	Write	Boolean	Create incidents from alerts triggered by this analytics rule
groupingConfiguration	Write	MSFT_SentinelAlertRuleIncidentConfigurationGroupingConfiguration	Set how the alerts that are triggered by this analytics rule, are grouped into incidents

MSFT_SentinelAlertRuleIncidentConfigurationGroupingConfiguration

Parameters

Parameter	Attribute	DataType	Description	Allowed Values
enabled	Write	Boolean	Grouping enabled
groupByAlertDetails	Write	MSFT_SentinelAlertRuleIncidentConfigurationGroupingConfigurationAlertDetail[]	A list of alert details to group by (when matchingMethod is Selected)
groupByCustomDetails	Write	StringArray[]	A list of custom details keys to group by (when matchingMethod is Selected). Only keys defined in the current alert rule may be used.
groupByEntities	Write	StringArray[]	A list of entity types to group by (when matchingMethod is Selected). Only entities defined in the current alert rule may be used.
lookbackDuration	Write	String	Limit the group to alerts created within the lookback duration (in ISO 8601 duration format)
matchingMethod	Write	String	Grouping matching method. When method is Selected at least one of groupByEntities, groupByAlertDetails, groupByCustomDetails must be provided and not empty.
reopenClosedIncident	Write	Boolean	Re-open closed matching incidents

MSFT_SentinelAlertRuleIncidentConfigurationGroupingConfigurationAlertDetail

Parameters

Parameter	Attribute	DataType	Description	Allowed Values
DisplayName	Write	String	Display name of the alert detail.
Severity	Write	String	Severity level associated with the alert detail.

Description

Configures alert rules in Azure Sentinel.

Permissions

Examples

Example 1

This example is used to test new resources and showcase the usage of new resources being worked on. It is not meant to use as a production baseline.

Configuration Example
{
    param(
        [Parameter()]
        [System.String]
        $ApplicationId,

        [Parameter()]
        [System.String]
        $TenantId,

        [Parameter()]
        [System.String]
        $CertificateThumbprint
    )
    Import-DscResource -ModuleName Microsoft365DSC
    node localhost
    {
        SentinelAlertRule "SentinelAlertRule-MyNRTRule"
        {
            AlertDetailsOverride  = MSFT_SentinelAlertRuleAlertDetailsOverride{
                alertDescriptionFormat = 'This is an example of the alert content'
                alertDisplayNameFormat = 'Alert from {{{TimeGenerated}} '
            };
            ApplicationId         = $ApplicationId;
            CertificateThumbprint = $CertificateThumbprint;
            CustomDetails         = @(
                MSFT_SentinelAlertRuleCustomDetails{
                    DetailKey = 'Color'
                    DetailValue = 'TenantId'
                }
            );
            Description           = "Test";
            DisplayName           = "MyNRTRule";
            Enabled               = $True;
            Ensure                = "Present";
            EntityMappings        = @(
                MSFT_SentinelAlertRuleEntityMapping{
                    fieldMappings = @(
                        MSFT_SentinelAlertRuleEntityMappingFieldMapping{
                            identifier = 'AppId'
                            columnName = 'Id'
                        }
                    )
                    entityType = 'CloudApplication'
                }
            );
            IncidentConfiguration = MSFT_SentinelAlertRuleIncidentConfiguration{
                groupingConfiguration = MSFT_SentinelAlertRuleIncidentConfigurationGroupingConfiguration{
                    lookbackDuration = 'PT5H'
                    matchingMethod = 'Selected'
                    groupByCustomDetails = @('Color')
                    groupByEntities = @('CloudApplication')
                    reopenClosedIncident = $True
                    enabled = $True
                }
                            createIncident = $True
            };
            Query                 = "ThreatIntelIndicators";
            ResourceGroupName     = "ResourceGroupName";
            Severity              = "Medium";
            SubscriptionId        = "xxxx";
            SuppressionDuration   = "PT5H";
            Tactics               = @();
            Techniques            = @();
            TenantId              = $TenantId;
            WorkspaceName         = "SentinelWorkspace";
        }
    }
}

Example 2

This example is used to test new resources and showcase the usage of new resources being worked on. It is not meant to use as a production baseline.

Configuration Example
{
    param(
        [Parameter()]
        [System.String]
        $ApplicationId,

        [Parameter()]
        [System.String]
        $TenantId,

        [Parameter()]
        [System.String]
        $CertificateThumbprint
    )
    Import-DscResource -ModuleName Microsoft365DSC
    node localhost
    {
        SentinelAlertRule "SentinelAlertRule-MyNRTRule"
        {
            AlertDetailsOverride  = MSFT_SentinelAlertRuleAlertDetailsOverride{
                alertDescriptionFormat = 'This is an example of the alert content'
                alertDisplayNameFormat = 'Alert from {{{TimeGenerated}} '
            };
            ApplicationId         = $ApplicationId;
            CertificateThumbprint = $CertificateThumbprint;
            CustomDetails         = @(
                MSFT_SentinelAlertRuleCustomDetails{
                    DetailKey = 'Color'
                    DetailValue = 'TenantId'
                }
            );
            Description           = "Test";
            DisplayName           = "MyNRTRule";
            Enabled               = $True;
            Ensure                = "Present";
            EntityMappings        = @(
                MSFT_SentinelAlertRuleEntityMapping{
                    fieldMappings = @(
                        MSFT_SentinelAlertRuleEntityMappingFieldMapping{
                            identifier = 'AppId'
                            columnName = 'Id'
                        }
                    )
                    entityType = 'CloudApplication'
                }
            );
            IncidentConfiguration = MSFT_SentinelAlertRuleIncidentConfiguration{
                groupingConfiguration = MSFT_SentinelAlertRuleIncidentConfigurationGroupingConfiguration{
                    lookbackDuration = 'PT5H'
                    matchingMethod = 'Selected'
                    groupByCustomDetails = @('Color')
                    groupByEntities = @('CloudApplication')
                    reopenClosedIncident = $True
                    enabled = $True
                }
                            createIncident = $True
            };
            Query                 = "ThreatIntelIndicators";
            ResourceGroupName     = "ResourceGroupName";
            Severity              = "High"; #Drift
            SubscriptionId        = "xxxx";
            SuppressionDuration   = "PT5H";
            Tactics               = @();
            Techniques            = @();
            TenantId              = $TenantId;
            WorkspaceName         = "SentinelWorkspace";
        }
    }
}

Example 3

This example is used to test new resources and showcase the usage of new resources being worked on. It is not meant to use as a production baseline.

Configuration Example
{
    param(
        [Parameter()]
        [System.String]
        $ApplicationId,

        [Parameter()]
        [System.String]
        $TenantId,

        [Parameter()]
        [System.String]
        $CertificateThumbprint
    )
    Import-DscResource -ModuleName Microsoft365DSC
    node localhost
    {
        SentinelAlertRule "SentinelAlertRule-MyNRTRule"
        {
            ApplicationId         = $ApplicationId;
            CertificateThumbprint = $CertificateThumbprint;
            Description           = "Test";
            DisplayName           = "MyNRTRule";
            Ensure                = "Absent";
            ResourceGroupName     = "ResourceGroupName";
            Severity              = "Medium";
            SubscriptionId        = "xxxx";
            TenantId              = $TenantId;
            WorkspaceName         = "SentinelWorkspace";
        }
    }
}