Windows Security Log Event ID 4784

Operating Systems Windows 2008 R2 and 7
Windows 2012 R2 and 8.1
Windows 2016 and 10
Windows Server 2019 and 2022
Category
 • Subcategory
Account Management
 • Application Group Management
Type Success
Corresponding events
in Windows 2003
and before
 

4784: A basic application group was changed

On this page

The user in Subject: changed the application group identified in Group:.

Application groups are part of Windows's role based access control for applications and are maintained in the Authorization Manager MMC snap-in.

This event does not report the common name (cn) of the group you are accustomed to seeing in Authorization Manager where application groups are maintained.  This is really bad because the account name reported in this event isn't displayed anywhere in Authorization Manager.  To find out the common name of the group look for the Directory Service Changes events immediately following this event which do report the common name.

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Description Fields in 4784

Subject:

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.

Group:

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

Attributes:

  • SAM Account Name: Pre-win2k name of affected group
  • SID History:  used when migrating legacy NT domains or merging domains.  Normally "-"

Additional Information:

  • Privileges:  always "-"

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Examples of 4784

A basic application group was changed.

Subject:

   Security ID:  ACME\administrator
   Account Name:  administrator
   Account Domain:  ACME
   Logon ID:  0x30999

Group:

   Security ID:  ACME\$K21000-R2HC42Q10MLQ
   Account Name:  $K21000-R2HC42Q10MLQ
   Account Domain:  ACME

Attributes:

   SAM Account Name: -
   SID History:  -

Additional Information:

   Privileges:  -

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