Applies to: Windows Server 2008, 2008 R2 and 2012

Requirement:  You would like to investigate who has added or removed a specific Domain User in Domain Admins or Group Policy Creator Owners

Prerequisite: Auditing has to be configured on Domain controllers, especially, “Audit account management” policy must be configured and you need to define both Success and Failure policy settings. To configure Auditing on Domain Controllers, you need to edit and update DDCP (Default Domain Controller Policy)



When a User is Added to Security-Enabled GLOBAL Group, an event will be logged with Event ID: 4728

Event Details for Event ID: 4728

A member was added to a security-enabled global group.

 Subject:

                Security ID:                            TESTLAB\Santosh

                Account Name:                    Santosh

                Account Domain:                 TESTLAB

                Logon ID:                               0x50B79DA

 Member:

                Security ID:                            TESTLAB\Temp

                Account Name:                    CN=Temp,CN=Users,DC=AD,DC=TESTLAB,DC=NET

 Group:

                Security ID:                            TESTLAB\Domain Admins

                Group Name:                        Domain Admins

                Group Domain:                     TESTLAB

 

In this example, TESTLAB\Santosh has added user TESTLAB\Temp to Domain Admins group.

When a User is removed from Security-Enabled GLOBAL Group, an event will be logged with Event ID: 4729

Event Details for Event ID: 4729

A member was removed from a security-enabled global group.

 Subject:

                Security ID:                            TESTLAB\Santosh

                Account Name:                    Santosh

                Account Domain:                 TESTLAB

                Logon ID:                               0x50B79DA

 Member:

                Security ID:                            TESTLAB\Temp

                Account Name:                    CN=Temp,CN=Users,DC=AD,DC=TESTLAB,DC=NET

 Group:

                Security ID:                            TESTLAB\Domain Admins

                Group Name:                        Domain Admins

                Group Domain:                     TESTLAB

 In this example, TESTLAB\Santosh has removed user TESTLAB\Temp from Domain Admins group.

- End of the Article -

See also:

Event ID when a user is added or removed from security-enabled UNIVERSAL group such as Enterprise Admins

Event ID when a user is added or removed from security-enabled DOMAIN LOCAL group such as DnsAdmins group

Configuring Audit Policies

Strengthening Domain Controller Policy Settings

Reviewing Audit Settings on Important Active Directory Objects

Recommendations: Strengthening Domain and Domain Controller Policy Settings