Windows Firewall Notifier cannot create rule for “System”

Discussion in 'other firewalls' started by Danio666, Oct 11, 2018.

  1. Danio666

    Danio666 Registered Member

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    Dear Firewall experts :)

    I recently updated from win7 to win10 and installed the latest version (2.0.6636.29380) of Windows Firewall Notifier. I had an older version on win7 running without problems. Now, on win10, I frequently get a message that “System” wants to enter the internet. Unfortunately, I can only “Skip” the message, as both “Allow” and “Block” (permanently and temporarily) result the error message “The corresponding rule has not been created”. I guess the problem is that WFN cannot link “System” to a file (exe or so). In the security log tab of WFN “System” is shown, but I cannot get to a file using the “Locate” button. Also I cannot find a file named system.exe on my system (using locate32). I created a rule to let system.exe.config (the closest I could find) go online, but this did not help.

    So currently I have to press “Skip” every 20 min or so, which is very annoying. Anyone an idea what to do ?
     
  2. Rasheed187

    Rasheed187 Registered Member

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    Sounds like an annoying problem. I believe that system.exe is the same as ntoskrnl.exe, perhaps you can try this.
     
  3. Danio666

    Danio666 Registered Member

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    Thanks for your suggestion Rasheed,


    I found three ntoskrnl.exe files on my system and created an exception rule for each of them. Unfortunately, I still get the same frequent “System” message. But was worth a try ;-)
     
  4. alexandrud

    alexandrud Developer

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    System is not system.exe, it is just System in Windows Firewall, it is a keyword. If Windows Firewall Notifier uses the same Windows Firewall rules, then use the Windows Firewall with Advanced Security console (wf.msc) to create a rule for System. Or use Windows Firewall Control which can create a rule for System.
     
  5. Danio666

    Danio666 Registered Member

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    Hi alexandud,

    many thanks for your reply !! However, I am a bit stuck here. Using the wf.msc and “Outbouond Rules” I can create rules for Programs (needs an exe), Ports or Predefined (could not find anything matching System in the list), but I am not sure how to create a rule for system there. Same for the “Connection Security Rules” (options: Isolation, Authentication exemption, Server-to-server and Tunel).
    Similarly, in the WF controls (“allowed apps”) there is a long list, but I cannot find any entry related to system. I also wondered how the hierarchy between WF controls and wf.msc is, as I think I found some allowed entries in WF controls for programs that still had to ask via WF notified to enter the internet (if I remember right).
    Sorry for my ignorance, but can you advise me how exactly to create a rule for System with wf.msc ?

    Thanks a lot,

    Danio
     
  6. alexandrud

    alexandrud Developer

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    Create a new rule, the wizard opens. When asked to enter a path, use the "System" keyword (no quotes). Next, Next, Next.

    upload_2018-10-16_8-18-25.png
    Windows Firewall has some predefined rules for System, just check the list. Some of them might not be enabled by default.
     
  7. Danio666

    Danio666 Registered Member

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    Hi alexandud,

    That’s it !!!!!!!!!

    Thanks a lot. I did not think that I could just use Keywords instead of a path.

    Thanks again...
     
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