The system must notify antivirus when file attachments are opened.

From Windows Server 2012/2012 R2 Domain Controller Security Technical Implementation Guide

Part of Attachment Mgr - Scan with Antivirus

Associated with: CCI-000366

SV-53006r1_rule The system must notify antivirus when file attachments are opened.

Vulnerability discussion

Attaching malicious files is a known avenue of attack. This setting configures the system to notify antivirus programs when a user opens a file attachment.

Check content

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_CURRENT_USER Registry Path: \Software\Microsoft\Windows\CurrentVersion\Policies\Attachments\ Value Name: ScanWithAntiVirus Type: REG_DWORD Value: 3

Fix text

Configure the policy value for User Configuration -> Administrative Templates -> Windows Components -> Attachment Manager -> "Notify antivirus programs when opening attachments" to "Enabled".

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