monkey365

0.95.1

collectors/azure/alerts/securityalerts/Get-MonkeyAzSecurityAlert.ps1

# Monkey365 - the PowerShell Cloud Security Tool for Azure and Microsoft 365 (copyright 2022) by Juan Garrido
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


function Get-MonkeyAzSecurityAlert {
<#
        .SYNOPSIS
        Collector to extract Security alerts from Azure
 
        .DESCRIPTION
        Collector to extract Security alerts from Azure
 
        .INPUTS
 
        .OUTPUTS
 
        .EXAMPLE
 
        .NOTES
            Author : Juan Garrido
            Twitter : @tr1ana
            File Name : Get-MonkeyAzSecurityAlert
            Version : 1.0
 
        .LINK
            https://github.com/silverhack/monkey365
    #>

    [CmdletBinding()]
    param(
        [Parameter(Mandatory = $false,HelpMessage = "Background Collector ID")]
        [string]$collectorId
    )
    begin {
        #Collector metadata
        $monkey_metadata = @{
            Id = "az00001";
            Provider = "Azure";
            Resource = "SecurityAlerts";
            ResourceType = $null;
            resourceName = $null;
            collectorName = "Get-MonkeyAzSecurityAlert";
            ApiType = "resourceManagement";
            description = "Collector to get Security alerts from Azure";
            Group = @(
                "SecurityAlerts"
            );
            Tags = @(

            );
            references = @(
                "https://silverhack.github.io/monkey365/"
            );
            ruleSuffixes = @(
                "aad_security_alerts"
            );
            dependsOn = @(

            );
            enabled = $true;
            supportClientCredential = $true
        }
        #Get Environment
        $Environment = $O365Object.Environment
        #Get Azure Active Directory Auth
        $rm_auth = $O365Object.auth_tokens.ResourceManager
        $AzureAlerts = $O365Object.internal_config.ResourceManager | Where-Object { $_.Name -eq "azureAlerts" } | Select-Object -ExpandProperty resource
    }
    process {
        $msg = @{
            MessageData = ($message.MonkeyGenericTaskMessage -f $collectorId,"Azure alerts",$O365Object.current_subscription.displayName);
            callStack = (Get-PSCallStack | Select-Object -First 1);
            logLevel = 'info';
            InformationAction = $InformationAction;
            Tags = @('AzureAlerts');
        }
        Write-Information @msg
        $params = @{
            Authentication = $rm_auth;
            Provider = $AzureAlerts.Provider;
            ObjectType = 'alerts';
            Environment = $Environment;
            ContentType = 'application/json';
            Method = "GET";
            APIVersion = $AzureAlerts.api_version;
        }
        $all_alerts = Get-MonkeyRMObject @params
        #Get primary object
        $AllAlerts = @()
        foreach ($Alert in $all_alerts) {
            $Properties = $Alert.Properties | Select-Object @{ Name = 'AlertName'; Expression = { $Alert.Name } },`
                 vendorName,alertDisplayName,detectedTimeUtc,actionTaken,`
                 reportedSeverity,compromisedEntity,reportedTimeUtc,@{ Name = 'ThreatName'; Expression = { $Alert.Properties.extendedProperties.Name } },`
                 @{ Name = 'Path'; Expression = { $Alert.Properties.extendedProperties.path } },@{ Name = 'Category'; Expression = { $Alert.Properties.extendedProperties.Category } }
            $Properties.PSObject.TypeNames.Insert(0,'Monkey365.Azure.SecurityAlerts')
            $AllAlerts += $Properties
        }
    }
    end {
        if ($AllAlerts) {
            $AllAlerts.PSObject.TypeNames.Insert(0,'Monkey365.Azure.SecurityAlerts')
            [pscustomobject]$obj = @{
                Data = $AllAlerts;
                Metadata = $monkey_metadata;
            }
            $returnData.aad_security_alerts = $obj
        }
        else {
            $msg = @{
                MessageData = ($message.MonkeyEmptyResponseMessage -f "Azure alerts",$O365Object.TenantID);
                callStack = (Get-PSCallStack | Select-Object -First 1);
                logLevel = "verbose";
                InformationAction = $O365Object.InformationAction;
                Tags = @('AzureAlertsEmptyResponse');
                Verbose = $O365Object.Verbose;
            }
            Write-Verbose @msg
        }
    }
}