Microsoft Windows Defender Antivirus STIG: WNDF-AV-000012

Check: WNDF-AV-000012 (in versions v2 r2 through v1 r1)

Title

Windows Defender AV must be configured for protocol recognition for network protection. (Cat II impact)

Discussion

This policy setting allows you to configure protocol recognition for network protection against exploits of known vulnerabilities. If you enable or do not configure this setting protocol recognition will be enabled. If you disable this setting protocol recognition will be disabled.

Check Content

Verify the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Defender Antivirus -> Network Inspection System -> "Turn on protocol recognition" is set to "Enabled" or "Not Configured". Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Policies\Microsoft\Windows Defender\NIS Criteria: If the value "DisableProtocolRecognition" is REG_DWORD = 0, this is not a finding. If the value does not exist, this is not a finding. If the value is 1, this is a finding.

Fix Text

Set the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Defender Antivirus -> Network Inspection System -> "Turn on protocol recognition" to "Enabled" or "Not Configured".

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CCIs

CCIs tied to check.
Number Definition
CCI-001242

The organization configures malicious code protection mechanisms to perform real-time scans of files from external sources at endpoints as the files are downloaded, opened, or executed in accordance with organizational security policy.

Controls

Controls tied to check. These are derived from the CCIs shown above.
Number Title
SI-3

Malicious Code Protection