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Windows Event ID 4728 - A member was added to a security-enabled global group

Events which are audited under the Audit Network Policy Server sub-category are triggered when a user's access request are related to RADIUS (IAS) and Network Access Protection (NAP) activity. The requests are of the following types: Lock, Unlock, Grant, Deny, Discard, and Quarantine.

Every IAS and NAP user access request generates an audit event if the Network Policy Server auditing is configured, and if the NAS and IAS roles are installed on the server.

Event ID 4728
Category Account management
Sub category Security group management
Description A member was added to a security-enabled global group

When Active Directory objects such as an user/group/computer is added to a security global group, event ID 4728 gets logged.

This log data gives the following information:

Subject: User who performed the action Security ID Account Name Account Domain Logon ID
Member: Object added to the security group Security ID Account Name
Group: Security group to which the object was added Security ID Group Name Group Domain
Additional Information Privileges

Why event ID 4728 needs to be monitored?

  • Prevention of privilege abuse
  • Detection of potential malicious activity
  • Operational purposes like getting information on user activity like user attendance, peak logon times, etc.
  • Compliance mandates

Pro tip:

ADAudit Plus alerts and tracks critical activities such as adding or removing user/group/computer to security groups, thus making Active Directory auditing much easier.

Event 4728 applies to the following operating systems:

  • Windows Server 2008 R2 and Windows 7
  • Windows Server 2012 R2 and Windows 8.1
  • Windows Server 2016 and Windows 10
  • Corresponding event ID for 4728 in Windows Server 2003 and older is 632

Analyze Event ID 4728 security group membership additions and audit privileged group changes with ADAudit Plus.

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