Ensure the common attachment types filter is enabled in the default anti-malware policy

SedangLevel 1Otomatism365

Deskripsi

The common attachment filter blocks executable and script attachment types that are frequently used to deliver malware. Requires an already-connected Exchange Online session: Install-Module ExchangeOnlineManagement; Connect-ExchangeOnline (View-Only Organization Management is sufficient). The audit throws if no session exists.

Cara pemeriksaan

Metode audit: Perintah shell

shell

$ErrorActionPreference = 'Stop'; if (-not (Get-Command Get-ConnectionInformation -ErrorAction SilentlyContinue) -or -not (Get-ConnectionInformation)) { throw 'Not connected: run Connect-ExchangeOnline first' }; $p = Get-MalwareFilterPolicy -Identity Default -ErrorAction Stop; if ($p.EnableFileFilter -eq $true) { 'compliant' } else { 'noncompliant' }

Output yang diharapkan: compliant

Cara perbaikan

Metode perbaikan: Panduan atau patch infrastruktur

Set-MalwareFilterPolicy -Identity Default -EnableFileFilter $true

Properti

Sistem operasi: Apa saja
Tag: m365malware
Referensi: CIS Microsoft 365 Foundations Benchmark v7.0.0 - Exchange Online Protection / Anti-malware - common attachments filter (verify section number for your release)

Periksa host ini

Jalankan ini pada mesin yang diizinkan untuk Anda audit. Pemindaian bersifat hanya baca.

shell

tmaegis scan --target m365