Active Directory | Identity Underground

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Quest For Security

October 2016https://identityunderground.wordpress.com

This script finds all AD objects protected by accidental deletions.

Credits: This script uses logic that has been developed by:

– Ashley McGlone, Microsoft Premier Field Engineer, March 2013, http://aka.ms/GoateePFE

– Source: https://gallery.technet.microsoft.com/Active-Directory-OU-1d09f989

LEGAL DISCLAIMER

This Sample Code is provided for the purpose of illustration only and is not intended to be used in a production environment.

THIS SAMPLE CODE AND ANY RELATED INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,

INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.

We grant You a nonexclusive, royalty-free right to use and modify the Sample Code and to reproduce and distribute the object code form of the Sample Code,

provided that You agree:

(i) to not use Our name, logo, or trademarks to market Your software product in which the Sample Code is embedded;

(ii) to include a valid copyright notice on Your software product in which the Sample Code is embedded;and

(iii) to indemnify, hold harmless, and defend Us and Our suppliers from and against any claims or lawsuits, including attorneys fees, that arise or result from the use or distribution of the Sample Code.

This posting is provided “AS IS” with no warranties, and confers no rights. Use of included script samples are subject to the terms specified at http://www.microsoft.com/info/cpyright.htm.

##############################################################################>

#—————————————————————————–

#Source references

#—————————————————————————–

#Preventing Unwanted/Accidental deletions and Restore deleted objects in Active Directory

#abizer_hazratJune 9, 2009

#https://blogs.technet.microsoft.com/abizerh/2009/06/09/preventing-unwantedaccidental-deletions-and-restore-deleted-objects-in-active-directory/

#Windows Server 2008 Protection from Accidental Deletion

#James ONeill, October 31, 2007

#https://blogs.technet.microsoft.com/industry_insiders/2007/10/31/windows-server-2008-protection-from-accidental-deletion/

#—————————————————————————–

#Prerequisites:

#this script only runs if you can load the AD PS module

#eg. run the analysis on a DC

#—————————————————————————–

cls

import-moduleactivedirectory

#—————————————————————————–

#initialisation

#—————————————————————————–

#the CSV file is saved in the same directory as the PS file

$csvFile=$MyInvocation.MyCommand.Definition -replace‘ps1’,‘csv’

$report= @()

#(*) Credits

$schemaIDGUID= @{}

### NEED TO RECONCILE THE CONFLICTS ###

$ErrorActionPreference=‘SilentlyContinue’

Get-ADObject-SearchBase (Get-ADRootDSE).schemaNamingContext -LDAPFilter‘(schemaIDGUID=*)’-Propertiesname,schemaIDGUID|

ForEach-Object {$schemaIDGUID.add([System.GUID]$_.schemaIDGUID,$_.name)}

Get-ADObject-SearchBase“CN=Extended-Rights,$((Get-ADRootDSE).configurationNamingContext)”-LDAPFilter‘(objectClass=controlAccessRight)’-Propertiesname,rightsGUID|

ForEach-Object {$schemaIDGUID.add([System.GUID]$_.rightsGUID,$_.name)}

$ErrorActionPreference=‘Continue’

#(*)

#—————————————————————————–

#Functions

#—————————————————————————–

functionCheckProtection

{

param($obj)

$path=“AD:\”+$obj

Get-Acl-Path$path|`

Select-Object-ExpandPropertyAccess|`

Where-Object {($_.ActiveDirectoryRights -like“*DeleteTree*”) -AND ($_.AccessControlType -eq“Deny”)} |`

#(*)

Select-Object @{name=‘Object’;expression={$obj}},`

@{name=‘objectTypeName’;expression={if ($_.objectType.ToString() -eq‘00000000-0000-0000-0000-000000000000’) {‘All’} Else {$schemaIDGUID.Item($_.objectType)}}},`

@{name=‘inheritedObjectTypeName’;expression={$schemaIDGUID.Item($_.inheritedObjectType)}},`

#(*)

ActiveDirectoryRights,

ObjectFlags,

AccessControlType,

IdentityReference,

IsInherited,

InheritanceFlags,

PropagationFlags

}

#—————————————————————————–

#MAIN

#—————————————————————————–

#add the top domain

$OUs= @(Get-ADDomain|Select-Object-ExpandPropertyDistinguishedName)

#add the OUs

$OUs+=Get-ADOrganizationalUnit-Filter*|Select-Object-ExpandPropertyDistinguishedName

#add other containers

$OUs+=Get-ADObject-SearchBase (Get-ADDomain).DistinguishedName -LDAPFilter‘(|(objectClass=container)(objectClass=builtinDomain))’|Select-Object-ExpandPropertyDistinguishedName

#if you don’t want to scan the builtin container use line below instead of line above

#$OUs += Get-ADObject -SearchBase (Get-ADDomain).DistinguishedName -LDAPFilter ‘(objectClass=container)’ | Select-Object -ExpandProperty DistinguishedName

#set the target objects types to investigate

#including users, groups, contacts, computers

$ldapfilter=‘(|(objectclass=user)(objectclass=group)(objectclass=contact)(objectclass=computer))’

#$ldapfilter = ‘(|(objectclass=user)(objectclass=group)(objectclass=contact)(objectclass=computer)(objectclass=Foreign-Security-Principal))’

#not included: Foreign-Security-Principal, msTPM-InformationObjectsContainer, msDS-QuotaContainer, lostAndFound,

$iSeqNo=0

$OUCount=$OUs.Count

ForEach ($OUin$OUs)

{

$iSeqNo++

$pct= ([int]($iSeqNo/$OUCount*100))

$activity=“Analyzing container: “+$OU

Write-Progress-activity$activity-status“Please wait”-percentcomplete$pct-currentoperation“now processing container $iSeqNo of $OUCount”-id1

#check the protection of the parent container

$isProtected=”

$isProtected=CheckProtection$OU

if ($isProtected-ne$null) {$report+=$isProtected}

#Lookup the child target objects in the parent container

$objects=Get-ADObject-SearchBase$OU-SearchScopeOneLevel-LDAPFilter$ldapfilter|Select-Object-ExpandPropertyDistinguishedName

$iSubSeqNo=0

$ObjCount=$objects.Count

#check the protection of the child objects

ForEach ($objectin$objects)

{

$iSubSeqNo++

$iSubpct= ([int]($iSubSeqNo/$ObjCount*100))

$SubActivity=“Analyzing object: “+$object

Write-Progress-activity$SubActivity-status“Please wait”-percentcomplete$iSubpct-currentoperation“now processing object $iSubSeqNo of $ObjCount”-ParentId1-id2

$isProtected=”

$isProtected=CheckProtection$object

if ($isProtected-ne$null) {$report+=$isProtected}

}

Write-Progress-activity“Analyzing object completed.”-status“Proceeding”-Completed-ParentId1-id2

}

$report|Format-Table-Wrap

$report|Export-Csv-Path$csvFile-NoTypeInformation

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https://identityunderground.wordpress.com

This script finds all AD objects protected by accidental deletions.

Credits: This script uses logic that has been developed by:

– Ashley McGlone, Microsoft Premier Field Engineer, March 2013, http://aka.ms/GoateePFE

– Source: https://gallery.technet.microsoft.com/Active-Directory-OU-1d09f989

LEGAL DISCLAIMER

This Sample Code is provided for the purpose of illustration only and is not intended to be used in a production environment.

THIS SAMPLE CODE AND ANY RELATED INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,

INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.

We grant You a nonexclusive, royalty-free right to use and modify the Sample Code and to reproduce and distribute the object code form of the Sample Code,

provided that You agree:

(i) to not use Our name, logo, or trademarks to market Your software product in which the Sample Code is embedded;

(ii) to include a valid copyright notice on Your software product in which the Sample Code is embedded;and

(iii) to indemnify, hold harmless, and defend Us and Our suppliers from and against any claims or lawsuits, including attorneys fees, that arise or result from the use or distribution of the Sample Code.

This posting is provided “AS IS” with no warranties, and confers no rights. Use of included script samples are subject to the terms specified at http://www.microsoft.com/info/cpyright.htm.

##############################################################################>

#—————————————————————————–

#Source references

#—————————————————————————–

#Preventing Unwanted/Accidental deletions and Restore deleted objects in Active Directory

#abizer_hazratJune 9, 2009

#https://blogs.technet.microsoft.com/abizerh/2009/06/09/preventing-unwantedaccidental-deletions-and-restore-deleted-objects-in-active-directory/

#Windows Server 2008 Protection from Accidental Deletion

#James ONeill, October 31, 2007

#https://blogs.technet.microsoft.com/industry_insiders/2007/10/31/windows-server-2008-protection-from-accidental-deletion/

#—————————————————————————–

#Prerequisites:

#this script only runs if you can load the AD PS module

#eg. run the analysis on a DC

#—————————————————————————–

cls

import-moduleactivedirectory

#—————————————————————————–

#initialisation

#—————————————————————————–

#the CSV file is saved in the same directory as the PS file

$csvFile=$MyInvocation.MyCommand.Definition -replace‘ps1’,‘csv’

$report= @()

#(*) Credits

$schemaIDGUID= @{}

### NEED TO RECONCILE THE CONFLICTS ###

$ErrorActionPreference=‘SilentlyContinue’

Get-ADObject-SearchBase (Get-ADRootDSE).schemaNamingContext -LDAPFilter‘(schemaIDGUID=*)’-Propertiesname,schemaIDGUID|

ForEach-Object {$schemaIDGUID.add([System.GUID]$_.schemaIDGUID,$_.name)}

Get-ADObject-SearchBase“CN=Extended-Rights,$((Get-ADRootDSE).configurationNamingContext)”-LDAPFilter‘(objectClass=controlAccessRight)’-Propertiesname,rightsGUID|

ForEach-Object {$schemaIDGUID.add([System.GUID]$_.rightsGUID,$_.name)}

$ErrorActionPreference=‘Continue’

#(*)

#—————————————————————————–

#Functions

#—————————————————————————–

functionCheckProtection

{

param($obj)

$path=“AD:\”+$obj

Get-Acl-Path$path|`

Select-Object-ExpandPropertyAccess|`

Where-Object {($_.ActiveDirectoryRights -like“*DeleteTree*”) -AND ($_.AccessControlType -eq“Deny”)} |`

#(*)

Select-Object @{name=‘Object’;expression={$obj}},`

@{name=‘objectTypeName’;expression={if ($_.objectType.ToString() -eq‘00000000-0000-0000-0000-000000000000’) {‘All’} Else {$schemaIDGUID.Item($_.objectType)}}},`

@{name=‘inheritedObjectTypeName’;expression={$schemaIDGUID.Item($_.inheritedObjectType)}},`

#(*)

ActiveDirectoryRights,

ObjectFlags,

AccessControlType,

IdentityReference,

IsInherited,

InheritanceFlags,

PropagationFlags

}

#—————————————————————————–

#MAIN

#—————————————————————————–

#add the top domain

$OUs= @(Get-ADDomain|Select-Object-ExpandPropertyDistinguishedName)

#add the OUs

$OUs+=Get-ADOrganizationalUnit-Filter*|Select-Object-ExpandPropertyDistinguishedName

#add other containers

$OUs+=Get-ADObject-SearchBase (Get-ADDomain).DistinguishedName -LDAPFilter‘(|(objectClass=container)(objectClass=builtinDomain))’|Select-Object-ExpandPropertyDistinguishedName

#if you don’t want to scan the builtin container use line below instead of line above

#$OUs += Get-ADObject -SearchBase (Get-ADDomain).DistinguishedName -LDAPFilter ‘(objectClass=container)’ | Select-Object -ExpandProperty DistinguishedName

#set the target objects types to investigate

#including users, groups, contacts, computers

$ldapfilter=‘(|(objectclass=user)(objectclass=group)(objectclass=contact)(objectclass=computer))’

#$ldapfilter = ‘(|(objectclass=user)(objectclass=group)(objectclass=contact)(objectclass=computer)(objectclass=Foreign-Security-Principal))’

#not included: Foreign-Security-Principal, msTPM-InformationObjectsContainer, msDS-QuotaContainer, lostAndFound,

ForEach ($OUin$OUs)

{

#check the protection of the parent container

$isProtected=”

$isProtected=CheckProtection$OU

if ($isProtected-ne$null) {$report+=$isProtected}

#Lookup the child target objects in the parent container

$objects=Get-ADObject-SearchBase$OU-SearchScopeOneLevel-LDAPFilter$ldapfilter|Select-Object-ExpandPropertyDistinguishedName

#check the protection of the child objects

ForEach ($objectin$objects)

{

$isProtected=”

$isProtected=CheckProtection$object

if ($isProtected-ne$null) {$report+=$isProtected}

}

}

$report|Format-Table-Wrap

$report|Export-Csv-Path$csvFile-NoTypeInformation