Windows Security Log Event ID 5156

5156: The Windows Filtering Platform has allowed a connection

On this page

• Description of this event
• Field level details
• Examples

This event documents each time WFP allows a program to connect to another process (on the same or a remote computer) on a TCP or UDP port.

The above example is of WFP allowing the DNS Server service to connect to the DNS client on the same computer.

Application Information:

• Process ID:  process ID specified when the executable started as logged in 4688
• Application Name: the program executable on this computer's side of the packet transmission

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Description Fields in 5156

Application Information:

•  Process ID:  %1
•  Application Name: %2

Network Information:

•  Direction:  %3
•  Source Address:  %4
•  Source Port:  %5
•  Destination Address: %6
•  Destination Port:  %7
•  Protocol:  %8

Filter Information:

•  Filter Run-Time ID: %9
•  Layer Name:  %10
•  Layer Run-Time ID: %11

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Mini-Seminars Covering Event ID 5156 Correlating Tactical Threat Data Feeds with Security Logs for More Intelligent Monitoring How to Monitor Network Activity with the Windows Security & Firewall Logs to Detect Inbound and Outbound Attacks 5 Indicators of Evil on Windows Hosts using Endpoint Threat Detection and Response How to Detect 2 Computers on Your Network Talking to Each Other for the First Time and Why It Matters XPath Deep Dive: Building Advanced Filters for Windows Event Collection Top Windows Security Log Events for User Behavior Analysis Correlating DHCP, DNS and Active Directory data with Network Logs for User Attribution Which User and What Program Sent This Packet, and Should I be Concerned? Correlating Network Security Alerts with Host Logs for Full Traffic Attribution Dabble or Deep Dive: 7 Different Threat Hunts You Can Do With Available Resources Detecting When Attackers Use Trusted Windows Components Like cmd, powershell, wmic, mshta, regsvr32 for Malicious Operations Top 4 Most Dangerous Applications on Every Endpoint; Fighting Back with Detective and Preventive Controls Top 10 Windows Security Log Events to Monitor to Detect Lateral Movement

 

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