Policy Change Event: 4905

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The Who, Where and When information is very important for an administrator to have complete knowledge of all activities that occur on their Active Directory. This helps them identify any desired / undesired activity happening. ADAudit Plus assists an administrator with this information in the form of reports. In real-time, ensure critical resources in the network like the Domain Controllers are audited, monitored and reported with the entire information on AD objects - Users, Groups, GPO, Computer, OU, DNS, AD Schema and Configuration changes with 200+ detailed event specific GUI reports and email alerts.

Account Management » Event ID 4905 - An attempt was made to unregister a security event source

Event ID 4905 - An attempt was made to unregister a security event source

Event ID 4905
Category Policy change
Sub category Audit policy change
Description An attempt was made to deregister a security event source

When an application calls AuthzRegisterSecurityEventSource again to deregister its security logs, event ID 4905 is logged.

This log data gives the following information:

Subject Security ID
Account Name
Account Domain
Logon ID
Process Process ID
Process Name
Event Source Source Name
Event Source ID

Why event ID 4905 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 helps you avoid the GPOs monitoring complexities with real-time pre-configured reports and auditing of the changes along with alerts within a Domain & OU. The advanced Group Policy settings real-time audit reports emphasize on the elusive change details and give a detailed report on the modifications along with the old and new values of the attributes.

Event 4905 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 4905 in Windows Server 2003 and older is 809

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