SHELL/2.1.2.ps1

$CheckId = "2.1.2"
$Title = "Ensure the Common Attachment Types Filter is enabled"

try {
    $Policy = Get-MalwareFilterPolicy -Identity Default | Select-Object Identity,EnableFileFilter,FileTypes
    $Pass = [bool]$Policy.EnableFileFilter

    [pscustomobject]@{
        CheckId   = $CheckId
        Title     = $Title
        Status    = if ($Pass) { "PASS" } else { "FAIL" }
        Pass      = $Pass
        Evidence  = $Policy
        Error     = $null
        Timestamp = Get-Date
    }
}
catch {
    [pscustomobject]@{
        CheckId   = $CheckId
        Title     = $Title
        Status    = "ERROR"
        Pass      = $null
        Evidence  = $null
        Error     = $_.Exception.Message
        Timestamp = Get-Date
    }
}