Object Access Event: 5156

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Object Access » Object Access Event: 5156

Event ID 5156 – The Windows Filtering Platform has permitted a connection.

Event ID 5156
Category Object Access: Filtering Platform Connection
Type Success Audit

Windows logs event 5156 whenever the WFP allows for a connection between a program and a process via a TCP or UDP port. This other process can be on the same computer or a remote one. The process ID mentioned in this log will correspond to the process ID in the event 4688 log.

This event log contains the following information:

  • Process ID
  • Application Name
  • Direction
  • Source Address
  • Source Port
  • Destination Address
  • Destination Port
  • Protocol
  • Filter Run-Time ID
  • Layer Name
  • Layer Run-Time

Why does event ID 5156 need to be monitored?

  • To ensure specific applications do not perform certain operations
  • To monitor restricted applications
  • To ensure that the source address does not indicate external activity
  • To monitor whether the destination address is an IP address from the Internet
  • To ensure only whitelisted IP addresses are connected to
  • To check the protocol that is being used by certain applications

Event 5156 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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