Windows Security Log Event ID 4756

Operating Systems Windows 2008 R2 and 7
Windows 2012 R2 and 8.1
Windows 2016 and 10
 • Subcategory
Account Management
 • Security Group Management
Type Success
Corresponding events
in Windows 2003
and before
Discussions on Event ID 4756
Group Name vs. Account Name
How come fields change in this event

4756: A member was added to a security-enabled universal group

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The user in Subject: added the user/group/computer in Member: to the Universal Security group in Group:.

In Active Directory Users and Computers "Security Enabled" groups are simply referred to as Security groups. AD has 2 types of groups: Security and Distribution. Distribution (security disabled) groups are for distribution lists in Exchange and cannot be assigned permissions or rights. Security (security enabled) groups can be used for permissions, rights and as distribution lists.

Universal means the group can be granted access in any trusting domain and may have members from any trusted domain.

This event is only logged on domain controllers.

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Description Fields in 4756


The user and logon session that performed the action.

  • Security ID:  The SID of the account.
  • Account Name: The account logon name.
  • Account Domain: The domain or - in the case of local accounts - computer name.
  • Logon ID is a semi-unique (unique between reboots) number that identifies the logon session.  Logon ID allows you to correlate backwards to the logon event (4624) as well as with other events logged during the same logon session.


  • Security ID:  The SID of the group's member
  • Account Name:  The distinguished name of the group's member


  • Security ID:  The SID of the affected group
  • Group Name: Name of affected group
  • Group Domain:  Domain of affected group

Additional Information:

  • Privileges:  always "-"

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Examples of 4756

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


   Security ID: ACME\Administrator
   Account Name: Administrator
   Account Domain: ACME
   Logon ID: 0x27a79


   Security ID: ACME\gkhan
   Account Name: cn=Ghenghis Khan,CN=Users,DC=acme,DC=local


   Security ID: S-1-5-21-3108364787-189202583-342365621-1108
   Group Name: Historical Figures
   Group Domain: ACME

Additional Information:

   Privileges: - :

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