💼 Management Samenvatting
Deze security regelen waarborgt de correcte configuratie van beveiligingsinstellingen op Windows endpoints.
Aanbeveling
Implementeer
Risico zonder
High
Risk Score
7/10
Implementatie
2u (tech: 1u)
Van toepassing op:
✓ Windows
Deze instelling is onderdeel van de Windows security baseline en beschermt tegen bekende aanvalsvectoren door het afdwingen van veilige configuraties.
PowerShell Modules Vereist
Primary API: Graph
Connection:
Required Modules: Microsoft.Graph.DeviceManagement
Connection:
Connect-MgGraphRequired Modules: Microsoft.Graph.DeviceManagement
Implementatie
Dit regelen Configureerert block bij first sight via Microsoft Intune apparaat configuratie beleid of compliance policies om Windows endpoints te beveiligen volgens security best practices.
Vereisten
Microsoft Intune via device configuratiebeleidsregels
Implementeeratie
Gebruik PowerShell-script block-at-first-sight.ps1 (functie Invoke-Monitoring) – Monitoren.
monitoring
Gebruik PowerShell-script block-at-first-sight.ps1 (functie Invoke-Monitoring) – Controleren.
Remediatie
Gebruik PowerShell-script block-at-first-sight.ps1 (functie Invoke-Remediation) – Herstellen.
Compliance en Auditing
Beleid documentatie
Compliance & Frameworks
- CIS M365: Control 18.9.19.2 (L1) - CIS Security Benchmark aanbevelingen
- BIO: 16.01 - BIO Baseline Informatiebeveiliging Overheid - 16.01 - Gebeurtenissen logging en audittrails
- ISO 27001:2022: A.12.4.1 - ISO 27001:2022 - Gebeurtenissen logging en audittrails
Automation
Gebruik het onderstaande PowerShell script om deze security control te monitoren en te implementeren. Het script bevat functies voor zowel monitoring (-Monitoring) als remediation (-Remediation).
PowerShell
<#
.SYNOPSIS
Intune Windows Defender: Block At First Sight
.DESCRIPTION
CIS - Block at first sight voor zero-day protection.
.NOTES
Filename: defender-block-first-sight.ps1|Author: Nederlandse Baseline voor Veilige Cloud|Setting: DisableBlockAtFirstSeen|Expected: False
#>
#Requires -Version 5.1
#Requires -RunAsAdministrator
[CmdletBinding()]param([switch]$WhatIf, [switch]$Monitoring, [switch]$Remediation, [switch]$Revert)
$ErrorActionPreference = 'Stop'
function Connect-RequiredServices { $p = New-Object Security.Principal.WindowsPrincipal([Security.Principal.WindowsIdentity]::GetCurrent()); return $p.IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator) }
function Test-Compliance {
$r = [PSCustomObject]@{ScriptName = "defender-block-first-sight.ps1"; PolicyName = "Defender Block First Sight"; IsCompliant = $false; CurrentValue = $null; Details = @() }; function Invoke-Revert { Set-MpPreference -DisableBlockAtFirstSeen $true }
try { $pref = Get-MpPreference; if ($pref.DisableBlockAtFirstSeen -eq $false) { $r.IsCompliant = $true; $r.Details += "Block at first sight enabled" }else { $r.Details += "Block at first sight disabled" } }catch { $r.Details += "Error: $($_.Exception.Message)" }; return $r
}
function Invoke-Remediation { Set-MpPreference -DisableBlockAtFirstSeen $false; Write-Host "Block at first sight enabled" -ForegroundColor Green }
function Invoke-Monitoring { $r = Test-Compliance; Write-Host "`n$($r.PolicyName): $(if($r.IsCompliant){'COMPLIANT'}else{'NON-COMPLIANT'})" -ForegroundColor $(if ($r.IsCompliant) { 'Green' }else { 'Red' }); return $r }
function Invoke-Revert { Set-MpPreference -DisableBlockAtFirstSeen $true }
try { if (-not(Connect-RequiredServices)) { exit 1 }; if ($Monitoring) { $r = Invoke-Monitoring; exit $(if ($r.IsCompliant) { 0 }else { 1 }) }elseif ($Remediation) { if (-not $WhatIf) { Invoke-Remediation } }elseif ($Revert) { Invoke-Revert }else { $r = Test-Compliance; exit $(if ($r.IsCompliant) { 0 }else { 1 }) } }catch { Write-Error $_; exit 1 }
Risico zonder implementatie
Risico zonder implementatie
High: No auth tracking.
Management Samenvatting
Schakel in audit logging.
- Implementatietijd: 2 uur
- FTE required: 0.01 FTE