TMA-DEFENDER-1.12.2

Ensure 'Configure whether to report Dynamic Signature dropped events' is set to 'Enabled'

TinggiLevel 1Otomatisdefender

Deskripsi

This policy setting configures whether to report Dynamic Signature dropped events. Dynamic Signature events are Microsoft Defender Antivirus log events that relate to cloud-delivered, on-demand threat signatures that Microsoft pushes to endpoints outside of the normal scheduled signature update cycle. The recommended state for this setting is: Enabled. Rationale: Microsoft Defender Antivirus logs Dynamic Signature dropped events when it blocks or removes a file using a dynamically delivered signature, but the signature is not fully processed or applied and is subsequently discarded. Audit reads the Group Policy registry value and prints 'compliant', 'unset' (policy not configured, reported as FAIL) or the non-compliant value. Registry value: HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Reporting:EnableDynamicSignatureDroppedEventReporting (REG_DWORD); compliant when it is 1. Remediation writes 1 locally; in a domain set it through the ADMX so Group Policy does not revert it.

Cara pemeriksaan

Metode audit: Registry Windows

registry

$v = (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Reporting' -Name 'EnableDynamicSignatureDroppedEventReporting' -ErrorAction SilentlyContinue).'EnableDynamicSignatureDroppedEventReporting'; if ($null -eq $v) { 'unset' } elseif (($null -ne $v -and @(1) -contains [int64]$v)) { 'compliant' } else { "non-compliant: $v" }

Output yang diharapkan: compliant

Cara perbaikan

Metode perbaikan: Perintah shell

shell

$p = 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Reporting'; if (-not (Test-Path -Path $p)) { New-Item -Path $p -Force | Out-Null }; New-ItemProperty -Path $p -Name 'EnableDynamicSignatureDroppedEventReporting' -Value 1 -PropertyType DWord -Force | Out-Null

Properti

Sistem operasi: Apa saja
Tag: defenderantiviruscis-l1
Referensi: CIS Microsoft Defender Antivirus Benchmark v1.0.0 - 1.12.2 Ensure 'Configure whether to report Dynamic Signature dropped events' is set to 'Enabled'

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shell

tmaegis scan --target defender