Elastic high stable eql

Potential privilege escalation via CVE-2022-38028

Identifies a potential privilege escalation attempt via CVE-2022-38028 through modification of the protected Print to PDF MPDW constraints script.

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Detection Logic

file where host.os.type == "windows" and event.type != "deletion" and
    file.name : "MPDW-constraints.js" and
    file.path : (
        "?:\\*\\Windows\\system32\\DriverStore\\FileRepository\\*\\MPDW-constraints.js",
        "?:\\*\\Windows\\WinSxS\\amd64_microsoft-windows-printing-printtopdf_*\\MPDW-constraints.js", 
        "\\Device\\HarddiskVolume*\\*\\Windows\\system32\\DriverStore\\FileRepository\\*\\MPDW-constraints.js",
        "\\Device\\HarddiskVolume*\\*\\Windows\\WinSxS\\amd64_microsoft-windows-printing-printtopdf_*\\MPDW-constraints.js"
    ) and
    not process.executable : (
          "?:\\$WINDOWS.~BT\\Sources\\SetupHost.exe",
          "?:\\Windows\\System32\\taskhostw.exe"
    ) and
    not file.path : (
        "?:\\$WINDOWS.~BT\\NewOS\\Windows\\WinSxS\\*\\MPDW-constraints.js",
        "\\Device\\HarddiskVolume*\\$WINDOWS.~BT\\NewOS\\Windows\\WinSxS\\*\\MPDW-constraints.js"
    )

Field Validations

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