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Sophos PET not starting anymore

System administration

Hi,

 

It seems that our PET is no longer starting as a service on our SEC server.

The error we receive is "Unhandled Exception: System.BadImageFormatException: Could not load file or assembly 'log4net, Version=1.2.14.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a' or one of its dependencies. The module was expected to contain an assembly manifest. at Sophos.PolicyEvaluation.Console.Program.Main(String[] args)" when trying to start it from an elevated prompt.

Any ideas what might be causing this?



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  • 0

    Hello System administration,

    PET is no longer starting
    since when (and what could have changed)? Where do you see this error?

    when trying to start it from an elevated prompt
    trying to start which program? Are you referring to the service or the program?

    Christian

  • 0 in reply to QC

    Hello Christian

    We have the same issue. After a crash of the server running Sophos Enterprise Console (VM) the PET service is not starting anymore. So the service "Policy Evaluation Service" is affected.

    In the application eventlog of the server I find the same error message (see below / sry it's in german). It seems to be a problem with the log4net.ddl file.  What can we do about it?

    Der Dienst kann nicht gestartet werden. System.BadImageFormatException: Die Datei oder Assembly "log4net, Version=1.2.14.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a" oder eine Abhängigkeit davon wurde nicht gefunden. Im Modul wurde ein Assemblymanifest erwartet.
    Dateiname: "log4net, Version=1.2.14.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a"
    bei Sophos.PolicyEvaluation.Service.PETService.OnStart(String[] args)
    bei System.ServiceProcess.ServiceBase.ServiceQueuedMainCallback(Object state) 

     

    Best regards,

    ZAG SA

  • 0 in reply to ZAG ICT

    Hi  

    Are there any recent changes in your environment? What is the version of the Sophos Enterprise console you are using? 

    Shweta

    Community Support Engineer | Sophos Technical Support
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  • 0 in reply to Shweta

    Hi Shweta

    There are no recent changes in our environment. The version of the Sophos Enterprise console is 5.5.0.

    The PET stopped working after a crash of the VM because a RAM error on the physical Server.
    When I try to restart the "PET" service I recieve the error described before.

    Best regards,

    ZAG System Administrator

  • 0 in reply to ZAG ICT

    Hello ZAG SA,

    wonder how the RAM error managed to break PET, log4net.dll, or .NET? The error is somewhat obscure (and vague) - 32/64bit should not be the issue, (suddenly) missing dependencies or manifests ... hm.
    OK, just put the log4net.dll away an put an arbitrary file in its place - exactly this error. For reference, 1.2.14.0 has a size of 307200, SHA1 E7E328C26A8F8DDA6DE8532E7CD8EB012280D3EA. Dunno if and when SUM verifies the integrity of the programs directory - if the DLL is indeed corrupt. It's copied from C:\ProgramData\Sophos\Update Manager\Working\Decoded-SDDM\A845A8B5-6532-4EF1-B19E-1DB2B3CB73D1\Policy Evaluation Tool\.

    Christian

  • 0 in reply to QC

    Looks like the file has been corrupted, restore it as Christian mentions and the process should start OK

    If you check the Event log, was the last shutdown prior to this process failing unexpected?  Did it recently bugcheck, etc...

    Jak

  • 0 in reply to QC

    Hello Christian


    Thanks for the quick answer. We replaced the log4net.dll file and now the service is running again.
    It seamed the log4net.dll was corrupt.
    Sorry for the late replay I just noticed your answer.

    Thanks

    ZAG System Administrator

  • 0 in reply to QC

    Hello Christian, as you mentioned i have the same .dll corrupted. From your answer i have to take the right .dll from C:\ProgramData\Sophos\Update Manager\Working\Decoded-SDDM\A845A8B5-6532-4EF1-B19E-1DB2B3CB73D1\Policy Evaluation Tool\   but I don't understand where I have to put this file to overwrite the corrupted one.

    Thank you so much

     

    Lorenzo

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  • 0 in reply to QC

    Hello Christian, as you mentioned i have the same .dll corrupted. From your answer i have to take the right .dll from C:\ProgramData\Sophos\Update Manager\Working\Decoded-SDDM\A845A8B5-6532-4EF1-B19E-1DB2B3CB73D1\Policy Evaluation Tool\   but I don't understand where I have to put this file to overwrite the corrupted one.

    Thank you so much

     

    Lorenzo

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