Object Access Event: 4671

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Account Management » Object Access Event: 4671

Event ID 4671 – An Application Attempted To Access A Blocked Ordinal Through the TBS

Event ID 4671
Category Object Access: Other Object Access Events
Type Success Audit

When an application tries to access a blocked ordinal through the TBS, event 4671 is logged. TBS is a part of the Trusted Platform Module. Though this event is defined, it is never invoked by the operating system, and thus currently doesn't generate.

This log data provides the following information:

  • Security ID
  • Account Name
  • Account Domain
  • Logon ID
  • Ordinal

Why does event ID 4671 need to be monitored?

The documentation provided by Microsoft states that this event is never generated by the OS. Thus, the occurrence of this event could indicate a deeper and critical problem which would need further investigation.

Event 4671 applies to the following operating systems:

  • Windows 2008 R2 and 7
  • Windows 2012 R2 and 8.1
  • Windows 2016 and 10

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