Windows 10: Why does Powershell V1 and not V7 trying to access %system%\CatRoot?

Discus and support Why does Powershell V1 and not V7 trying to access %system%\CatRoot? in Windows 10 Software and Apps to solve the problem; Hi, everyone. Defender notificates that Powershell.exe is trying to access %system%\CatRoot. It should be regular BUT the fact that the specific... Discussion in 'Windows 10 Software and Apps' started by Adriano Castaldini, Oct 4, 2023.

  1. Why does Powershell V1 and not V7 trying to access %system%\CatRoot?


    Hi, everyone. Defender notificates that Powershell.exe is trying to access %system%\CatRoot. It should be regular BUT the fact that the specific Powershell is NOT the updated pwsh.exe version 7 I've installed recently, but the old and potentially unsafe version 1.It's strange because when I installed Powershell7, I checked the specific option "Add Run with Powershell7 context menu for Powershell files".I asked to a nice technical-support operator that said: "The Powershell version that is trying to access to %system%\CatRoot is likely determined by the script or process that is invoking it

    :)
     
    Adriano Castaldini, Oct 4, 2023
    #1

  2. Why is powershell trying to access "%system%\CatRoot" "C:\ProgramData"

    it's been weeks since these started to show up in windows controlled folder access, this never happened before in all the time I've had folder acces on
    i've done some search on what the catroot folder it's used for and the only clue here it's that i've been avoidind windows updates using the metered connection setting to prevent from doing things on its own

    2023-04 Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5025221)

    Status: Pending download

    this it's the update that it's showing pending since i left the metered connection check on, i'm not able to download big updates frequenty so its the only clue for whatever its trying to do

    OS build

    Experience

    Windows 10 Pro

    21H2 22/06/2021 19044.2251

    Windows Feature Experience Pack 120.2212.4180.0

    [My last update]

    still this also trying to acces progam data, i don't know why is powershell trying to acces these 2 locations recently

    App or process blocked: powershell_ise.exe

    Protected folder: C:\ProgramData

    Blocked by: Controlled folder access

    should i allow powershell to access?
    is it because updates and will stop showing once i intall pending update?
    should i worry about it?
    *i've already performed a system scan with malwarebytes with no threats detected [haven't on startup]
     
    sknightmare, Oct 4, 2023
    #2
  3. Why is powershell trying to access "%system%\CatRoot", and %temp%/

    Every time I turn my computer on I get a notification that "unauthorized changes blocked", "powershell.exe". I did have a virus a few weeks ago and possibly still have one. I'm also getting a blocked app or "mscorsvw.exe" "%winddir%\assembly\NativeImages_v4.0.30319_64\Temp\4dd4-0". There is also like 10 different versions of the mscorsvw.exe, after Temp\ is another random 4 characters.

    Edition Windows 10 Pro

    Version 22H2

    Installed on ‎4/‎23/‎2021

    OS build 19045.3208

    Experience Windows Feature Experience Pack 1000.19041.1000.0

    App or process blocked: powershell.exe

    Protected folder: %system%\CatRoot

    Blocked by: Controlled folder access

    App or process blocked: powershell.exe

    Protected folder: %system%\config\systemprofile\AppData\LocalLow\Temp

    Blocked by: Controlled folder access

    App or process blocked: powershell.exe

    Protected folder: %temp%\

    Blocked by: Controlled folder access

    App or process blocked: mscorsvw.exe

    Protected folder: %winddir%\assembly\NativeImages_v4.0.30319_64\Temp\4dd4-0

    Blocked by: Controlled folder access

    here is an autoruns of my computer

    AutorunsTest.arn
     
    mysticdragz, Oct 4, 2023
    #3
  4. _AW_ Win User

    Why does Powershell V1 and not V7 trying to access %system%\CatRoot?

    Why is powershell trying to access "%system%\CatRoot", and %temp%/

    Hi mysticdragz, I think the Powershell ones are from one of the telemetry tasks.

    See if this stops the changes blocked notifications:

    • Run Autoruns64.exe as administrator
    • In the Quick Filter box enter: appraiser
    • You should see a task named \Microsoft\Windows\Application Experience\Microsoft Compatibility Appraiser
    • Uncheck this entry
    ~~~~

    FYI, Your Autoruns log is inaccessible, please change the share permissions.
     
    _AW_, Oct 4, 2023
    #4
Thema:

Why does Powershell V1 and not V7 trying to access %system%\CatRoot?

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