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5031(F): The Windows Firewall Service blocked an application from accepting incoming connections on the network.

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Event 5031 illustration

Subcategory: Audit Filtering Platform Connection

Event Description:

This event generates when an application was blocked from accepting incoming connections on the network by Windows Filtering Platform.

If you don’t have any firewall rules (Allow or Deny) in Windows Firewall for specific applications, you'll get this event from Windows Filtering Platform layer, because by default this layer is denying any incoming connections.

Note  For recommendations, see Security Monitoring Recommendations for this event.


Event XML:

- <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
 <Provider Name="Microsoft-Windows-Security-Auditing" Guid="{54849625-5478-4994-A5BA-3E3B0328C30D}" /> 
 <EventID>5031</EventID> 
 <Version>0</Version> 
 <Level>0</Level> 
 <Task>12810</Task> 
 <Opcode>0</Opcode> 
 <Keywords>0x8010000000000000</Keywords> 
 <TimeCreated SystemTime="2015-09-22T03:46:36.634473000Z" /> 
 <EventRecordID>304373</EventRecordID> 
 <Correlation /> 
 <Execution ProcessID="516" ThreadID="2976" /> 
 <Channel>Security</Channel> 
 <Computer>DC01.contoso.local</Computer> 
 <Security /> 
 </System>
- <EventData>
 <Data Name="Profiles">Domain</Data> 
 <Data Name="Application">C:\\documents\\listener.exe</Data> 
 </EventData>
 </Event>

Required Server Roles: None.

Minimum OS Version: Windows Server 2008, Windows Vista.

Event Versions: 0.

Field Descriptions:

  • Profiles [Type = UnicodeString]: network profile using which application was blocked. Possible values:

    • Domain

    • Public

    • Private

  • Application [Type = UnicodeString]: full path and file name of executable file for blocked application.

Security Monitoring Recommendations

For 5031(F): The Windows Firewall Service blocked an application from accepting incoming connections on the network.

  • You can use this event to detect applications for which no Windows Firewall rules were created.

  • If you have a pre-defined application that should be used to perform the operation that was reported by this event, monitor events with “Application” not equal to your defined application.

  • You can monitor to see if “Application” isn't in a standard folder (for example, not in System32 or Program Files) or is in a restricted folder (for example, Temporary Internet Files).

  • If you have a pre-defined list of restricted substrings or words in application names (for example, “mimikatz” or “cain.exe”), check for these substrings in “Application.”