Object Access Event: 5157

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Object Access » Object Access Event: 5157

Event ID 5157 – The Windows Filtering Platform has blocked a connection.

Event ID 5157
Category Object Access: Filtering Platform Connection
Type Failure Audit

Windows logs event 5157 whenever the WFP blocks a connection between a program and a process. This other process can be on the same computer or a remote computer.

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 5157 need to be monitored?

  • To ensure specific applications do not perform certain operations
  • To monitor restricted applications
  • To ensure that the source address is preferably from the same computer
  • 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 5157 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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