Server 2008 SP2 - SCEP/MSSE definition updates

Discussion in 'Windows Server' started by Carlos Detweiller, Sep 24, 2020.

  1. Carlos Detweiller

    Carlos Detweiller MDL Spinning Tortoise

    Dec 21, 2012
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    Lately (since end of August), SCEP (MSSE, too) does not seem to be able to update its definitions on Server 2008 SP2 (NT 6.0). Running the same on Windows 7 is fine, however.

    Even a complete reset or new installation does this. 0x80070643

    Did MS b0rk it on Server 2008 SP2?


    (Unfortunately, I also can't find any other free AV that will run in Server 2008 SP2.)
     
  2. abbodi1406

    abbodi1406 MDL KB0000001

    Feb 19, 2011
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    It worked here
    extracted mpas-fe.exe with 7-zip
    replaced the new mpengine.dll
    ran following cmd as admin
    Code:
    MpSigStub.exe /stub 1.1.16900.5 /payload 0.0.0.0
    you may need to clear this folder first
    C:\ProgramData\Microsoft\Windows Defender\Definition Updates\Backup\

    the missing kernel32.dll's TryAcquireSRWLockExclusive broke a lot of programs on NT 6.0
     
  3. Carlos Detweiller

    Carlos Detweiller MDL Spinning Tortoise

    Dec 21, 2012
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    Yes, I got it to work. For some reason, my old extracted mpas-fe.exe directory missed the dynamics (maybe because it was a fresh cycle). I just got and extracted mpas-d.exe, too, for the dynamics.

    The complete set (5 files, including the compatible mpengine.dll) copied to "C:\ProgramData\Microsoft\Microsoft Antimalware\Definition Updates\Updates\" triggers an immediate update (the files will disappear). If the set is missing files, nothing will update, but the files disappear, too.

    Code:
    mpasbase.vdm
    mpasdlta.vdm
    mpavbase.vdm
    mpavdlta.vdm
    mpengine.dll