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Açıklardan yararlanma koruması risk azaltma sorunlarını giderme

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Uç nokta için Defender'i deneyimlemek ister misiniz? Ücretsiz deneme için kaydolun.

Bir dizi açıkdan yararlanma koruması risk azaltması (yapılandırma olarak bilinir) oluşturduğunuzda, yapılandırma dışarı ve içeri aktarma işleminin tüm istenmeyen azaltmaları kaldırmadığını fark edebilirsiniz.

Windows Güvenliği'da istenmeyen azaltmaları el ile kaldırabilir veya aşağıdaki işlemi kullanarak tüm risk azaltmaları kaldırabilir ve bunun yerine bir temel yapılandırma dosyasını içeri aktarabilirsiniz.

  1. Bu PowerShell betiğiyle tüm işlem azaltmalarını kaldırın:

    # Check if Admin-Privileges are available
function Test-IsAdmin {
    ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")
}

# Delete ExploitGuard ProcessMitigations for a given key in the registry. If no other settings exist under the specified key,
# the key is deleted as well
function Remove-ProcessMitigations([Object] $Key, [string] $Name) {
    Try {
        if ($Key.GetValue("MitigationOptions")) {
            Write-Host "Removing MitigationOptions for:      " $Name
            Remove-ItemProperty -Path $Key.PSPath -Name "MitigationOptions" -ErrorAction Stop;
        }
        if ($Key.GetValue("MitigationAuditOptions")) {
            Write-Host "Removing MitigationAuditOptions for: " $Name
            Remove-ItemProperty -Path $Key.PSPath -Name "MitigationAuditOptions" -ErrorAction Stop;
        }
        if ($Key.GetValue("EAFModules")) {
            Write-Host "Removing EAFModules for: " $Name
            Remove-ItemProperty -Path $Key.PSPath -Name "EAFModules" -ErrorAction Stop;
        }

        # Remove the FilterFullPath value if there is nothing else
        if (($Key.SubKeyCount -eq 0) -and ($Key.ValueCount -eq 1) -and ($Key.GetValue("FilterFullPath"))) {
            Remove-ItemProperty -Path $Key.PSPath -Name "FilterFullPath" -ErrorAction Stop;
        }

        # If the key is empty now, delete it
        if (($Key.SubKeyCount -eq 0) -and ($Key.ValueCount -eq 0)) {
            Write-Host "Removing empty Entry:                " $Name
            Remove-Item -Path $Key.PSPath -ErrorAction Stop
        }
    }
    Catch {
        Write-Host "ERROR:" $_.Exception.Message "- at ($MitigationItemName)"
    }
}

# Delete all ExploitGuard ProcessMitigations
function Remove-All-ProcessMitigations {
    if (!(Test-IsAdmin)) {
        throw "ERROR: No Administrator-Privileges detected!"; return
    }

    Get-ChildItem -Path "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options" | ForEach-Object {
        $MitigationItem = $_;
        $MitigationItemName = $MitigationItem.PSChildName

        Try {
            Remove-ProcessMitigations $MitigationItem $MitigationItemName

            # "UseFilter" indicate full path filters may be present
            if ($MitigationItem.GetValue("UseFilter")) {
                Get-ChildItem -Path $MitigationItem.PSPath | ForEach-Object {
                    $FullPathItem = $_
                    if ($FullPathItem.GetValue("FilterFullPath")) {
                        $Name = $MitigationItemName + "-" + $FullPathItem.GetValue("FilterFullPath")
                        Write-Host "Removing FullPathEntry:              " $Name
                        Remove-ProcessMitigations $FullPathItem $Name
                    }

                    # If there are no subkeys now, we can delete the "UseFilter" value
                    if ($MitigationItem.SubKeyCount -eq 0) {
                        Remove-ItemProperty -Path $MitigationItem.PSPath -Name "UseFilter" -ErrorAction Stop
                    }
                }
            }
            if (($MitigationItem.SubKeyCount -eq 0) -and ($MitigationItem.ValueCount -eq 0)) {
                Write-Host "Removing empty Entry:                " $MitigationItemName
                Remove-Item -Path $MitigationItem.PSPath -ErrorAction Stop
            }
        }
        Catch {
            Write-Host "ERROR:" $_.Exception.Message "- at ($MitigationItemName)"
        }
    }
}

# Delete all ExploitGuard System-wide Mitigations
function Remove-All-SystemMitigations {

    if (!(Test-IsAdmin)) {
        throw "ERROR: No Administrator-Privileges detected!"; return
    }

    $Kernel = Get-Item -Path "HKLM:\SYSTEM\CurrentControlSet\Control\Session Manager\kernel"

    Try {
        if ($Kernel.GetValue("MitigationOptions"))
            { Write-Host "Removing System MitigationOptions"
                Remove-ItemProperty -Path $Kernel.PSPath -Name "MitigationOptions" -ErrorAction Stop;
            }
        if ($Kernel.GetValue("MitigationAuditOptions"))
            { Write-Host "Removing System MitigationAuditOptions"
                Remove-ItemProperty -Path $Kernel.PSPath -Name "MitigationAuditOptions" -ErrorAction Stop;
            }
    } Catch {
        Write-Host "ERROR:" $_.Exception.Message "- System"
    }
}

Remove-All-ProcessMitigations
Remove-All-SystemMitigations

  2. Exploit Protection yapılandırmalarını içeri aktarma, dışarı aktarma ve dağıtma konusunda açıklandığı gibi, aşağıdaki varsayılan risk azaltmalarıyla bir XML yapılandırma dosyasını İçerik Oluşturucu ve içeri aktarın:

     <?xml version="1.0" encoding="UTF-8"?>
 <root>
    <SystemConfig/>
    <AppConfig Executable="ExtExport.exe">
       <ASLR OverrideForceRelocateImages="false" ForceRelocateImages="false" Enable="true"/>
    </AppConfig>
    <AppConfig Executable="ie4uinit.exe">
      <ASLR OverrideForceRelocateImages="false" ForceRelocateImages="false" Enable="true"/>
    </AppConfig>
    <AppConfig Executable="ieinstal.exe">
   <ASLR OverrideForceRelocateImages="false" ForceRelocateImages="false" Enable="true"/>
    </AppConfig>
    <AppConfig Executable="ielowutil.exe">
      <ASLR OverrideForceRelocateImages="false" ForceRelocateImages="false" Enable="true"/>
    </AppConfig>
   <AppConfig Executable="ieUnatt.exe">
      <ASLR OverrideForceRelocateImages="false" ForceRelocateImages="false" Enable="true"/>
    </AppConfig>
   <AppConfig Executable="iexplore.exe">
      <ASLR OverrideForceRelocateImages="false" ForceRelocateImages="false" Enable="true"/>
    </AppConfig>
   <AppConfig Executable="mscorsvw.exe">
       <ExtensionPoints OverrideExtensionPoint="false" DisableExtensionPoints="true"/>
    </AppConfig>
    <AppConfig Executable="msfeedssync.exe">
       <ASLR OverrideForceRelocateImages="false" ForceRelocateImages="false" Enable="true"/>
    </AppConfig>
    <AppConfig Executable="mshta.exe">
       <ASLR OverrideForceRelocateImages="false" ForceRelocateImages="false" Enable="true"/>
    </AppConfig>
    <AppConfig Executable="ngen.exe">
       <ExtensionPoints OverrideExtensionPoint="false" DisableExtensionPoints="true"/>
    </AppConfig>
    <AppConfig Executable="ngentask.exe">
       <ExtensionPoints OverrideExtensionPoint="false" DisableExtensionPoints="true"/>
    </AppConfig>
    <AppConfig Executable="PresentationHost.exe">
       <DEP Enable="true" OverrideDEP="false" EmulateAtlThunks="false"/>
       <ASLR OverrideForceRelocateImages="false" ForceRelocateImages="false" Enable="true" OverrideBottomUp="false" HighEntropy="true" BottomUp="true"/>
       <SEHOP Enable="true" OverrideSEHOP="false" TelemetryOnly="false"/>
       <Heap OverrideHeap="false" TerminateOnError="true"/>
    </AppConfig>
    <AppConfig Executable="PrintDialog.exe">
       <ExtensionPoints OverrideExtensionPoint="false" DisableExtensionPoints="true"/>
    </AppConfig>
    <AppConfig Executable="PrintIsolationHost.exe"/>
    <AppConfig Executable="runtimebroker.exe">
       <ExtensionPoints OverrideExtensionPoint="false" DisableExtensionPoints="true"/>
    </AppConfig>
        <AppConfig Executable="splwow64.exe"/>
    <AppConfig Executable="spoolsv.exe"/>
    <AppConfig Executable="svchost.exe"/>
    <AppConfig Executable="SystemSettings.exe">
       <ExtensionPoints OverrideExtensionPoint="false" DisableExtensionPoints="true"/>
    </AppConfig>
</root>

Henüz yapmadıysanız, Yararlanma koruması özelleştirmenizi tamamlamak için Windows Güvenliği Temellerini indirip kullanmak iyi bir fikirdir.

İpucu

Daha fazla bilgi edinmek mi istiyorsunuz? Teknoloji Topluluğumuzdaki Microsoft Güvenlik topluluğuyla Engage: Uç Nokta için Microsoft Defender Teknoloji Topluluğu.