core/api/azure/resourcemanagement/helpers/virtualMachine/Get-MonkeyAzVMOMSInfo.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-MonkeyAzVMOMSInfo {
    <#
        .SYNOPSIS
        Get Azure VM OS monitoring status
 
        .DESCRIPTION
        Get Azure VM OS monitoring status
 
        .INPUTS
 
        .OUTPUTS
 
        .EXAMPLE
 
        .NOTES
            Author : Juan Garrido
            Twitter : @tr1ana
            File Name : Get-MonkeyAzVMOMSInfo
            Version : 1.0
 
        .LINK
            https://github.com/silverhack/monkey365
    #>

    [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSUseSingularNouns", "", Scope="Function")]
    [CmdletBinding()]
    [OutputType([System.Boolean])]
    Param (
        [Parameter(Mandatory=$True, ValueFromPipeline = $True, HelpMessage="VM object")]
        [Object]$InputObject,

        [Parameter(Mandatory=$false, HelpMessage="Check for legacy OMS")]
        [Switch]$Legacy
    )
    Process{
        try{
            If($null -ne $InputObject.PsObject.Properties.Item('resources') -and $null -ne $InputObject.resources){
                If($PSBoundParameters.ContainsKey('Legacy') -and $PSBoundParameters['Legacy'].IsPresent){
                    $agent = @($InputObject.resources).Where({$_.name -match "MicrosoftMonitoringAgent" -or $_.name -match "OmsAgentForLinux"})
                    If($agent.Count -gt 0){
                        return $True
                    }
                    Else{
                        return $false
                    }
                }
                Else{
                    $agent = @($InputObject.resources).Where({$_.name -match "AzureMonitorAgent"})
                    If($agent.Count -gt 0){
                        return $True
                    }
                    Else{
                        return $false
                    }
                }
            }
        }
        catch{
            Write-Verbose $_
        }
    }
}