KB4524244 Security update for Windows 10 - February 11 Win Update

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  1. krzemien's Avatar
    Posts : 689
    Windows 10 Home x64
       #60

    There we go, chaps, via AskWoody:

    (original reference: Microsoft pulls KB 4524244, the infamous UEFI patch, from the Catalog @ AskWoody)

    https://twitter.com/arekfurt/status/1228806929365045248

    Microsoft signed a Kaspersky bootloader that could be used to bypass Secure Boot on any PC (!), then revoked it last Tuesday (that was what took two reboots if you had Cred Guard enabled). Now there are in turn issues with that fix.


    https://twitter.com/aionescu/status/1228780982708428800

    1. Sign Kaspersky UEFI Rootkit (oops, “loader”) even though this wasn’t what the program was meant for, putting *everyone* at risk thanks to the DB policy.
    2. Finally release revocation (thanks @int0x6)
    3. Pull back the release and indicate you won’t offer it anymore.

    Nice.

    EDITED TO ADD #1:

    Microsoft pulls security update after reports of issues affecting some PCs — Long Room

    Judging from a series of cryptic tweets by security experts, this update and its revocation are tied to a situation involving Kaspersky Rescue Disk and a signed bootloader that can circumvent the Secure Boot feature that is the bedrock of security on modern PCs.

    EDITED TO ADD #2:

    https://twitter.com/int0x6/status/1228116774551355393

    (this thread from Twitter conversation)
    Last edited by krzemien; 16 Feb 2020 at 04:50. Reason: ADDITIONAL INFORMATION ADDED
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  2. jamis's Avatar
    Posts : 465
    Windows10 Home 64 bit v. 2004 bld. 19041.867
       #61

    OK, if MS pulled this KB, why is still on my system? WU auto installed it on my system on 02/13/2020, the day after the CU (KB4532693) was installed by the Patch Tuesday WU update. WU checked for updates at 6:58 PM ET on 02/15/2020 and KB4524244 is still installed.
    Manually selected WU check for updates from the WU page at 10:12 AM ET 02/16/2020 and it says everything is up to date with KB4524244 still installed. Very confused and a tad irritated.
    Should I uninstall KB4524244?
    Last edited by jamis; 16 Feb 2020 at 09:40.
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  3. pietcorus2's Avatar
    Posts : 1,639
    Windows 10 Pro x64
       #62

    " Should I uninstall KB4524244? "...........better uninstall for sure , its buggy ( thats why MS pulled it out )
    Besides , you never know the consequenses in future...........
    I had to use Macrium , went back to February 10 ........Im glad I did !
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  4. jamis's Avatar
    Posts : 465
    Windows10 Home 64 bit v. 2004 bld. 19041.867
       #63

    pietcorus2 said:
    " Should I uninstall KB4524244? "...........better uninstall for sure , its buggy ( thats why MS pulled it out )
    Besides , you never know the consequenses in future...........
    I had to use Macrium , went back to February 10 ........Im glad I did !
    I have a system image prior to the Patch Tuesday CU, so we’ll see.

    Update: Ran the uninstall of KB4524244 from the Installed Updates page and of course, it did not uninstall. Will recover from the last System Image I have. More wasted time maintaining W10. Thanks bunches MS.

    2nd Update: So if one isn't running Kaspersky software, are you at risk with this KB installed?

    3rd Update: I did another power off & boot up. The Control Panel display of installed programs does not list KB4524244 now. Yes, it's still in the Update History list on the Windows Update History page. I'm guessing the update has been removed from my system. Gotta love Windows as a service!
    Last edited by jamis; 16 Feb 2020 at 17:59. Reason: Added confusion...
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  5. Posts : 177
    Windows 10 Professional
       #64

    meh, can't they simply fix whatever is wrong with it on the next one?
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  6. storageman's Avatar
    Posts : 1,020
    Windows 10 Pro 20H2 19042.572
       #65

    I want to know who is lying ? I also went and "Uninstalled" KB4524244", Rebooted the system. Went into "Settings" and "Viewed Installed Updates", and it was still there. Went to "Control Panel" selected "Programs & Features", then "Viewed Installed Updates", and Its no where to be found.
    Attached Thumbnails Attached Thumbnails KB4524244 Security update for Windows 10 - February 11-kb4524244_1.jpg   KB4524244 Security update for Windows 10 - February 11-kb4524244_2.jpg  
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  7. Posts : 177
    Windows 10 Professional
       #66

    ehm quite simply because uninstalling an update doesn't remove it from the update history.. if you are being serious with your question anyway ^^
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  8. storageman's Avatar
    Posts : 1,020
    Windows 10 Pro 20H2 19042.572
       #67

    katlani said:
    ehm quite simply because uninstalling an update doesn't remove it from the update history.. if you are being serious with your question anyway ^^
    That maybe true, but since it was "uninstalled", it really isn't part of the installed history anymore ? It is definitely gone from the control panel history.
      My Computers


  9. Posts : 177
    Windows 10 Professional
       #68

    storageman said:
    That maybe true, but since it was "uninstalled", it really isn't part of the installed history anymore ? It is definitely gone from the control panel history.
    The control panel is not a graphical history log, it's a repository for uninstalling updates.. If you wish to have your installation history expunged, you can always remove the SoftwareDistribution folder after stopping the WU service.
      My Computer

  10. Ground Sloth's Avatar
    Posts : 316
    Windows 10
       #69

    jamis said:
    2nd Update: So if one isn't running Kaspersky software, are you at risk with this KB installed?
    The issue is that Microsoft signed a bootloader from Kaspersky that somehow has the ability to disable Secure Boot. The patch, if I understand correctly, will block the bootloader from running if it somehow gets on your computer.
      My Computer


 
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