Windows Defender AV must be configured to only send safe samples for MAPS telemetry.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-75207	WNDF-AV-000011	SV-89887r3_rule		Medium

Description
This policy setting configures behavior of samples submission when opt-in for MAPS telemetry is set. Possible options are: (0x0) Always prompt (0x1) Send safe samples automatically (0x2) Never send (0x3) Send all samples automatically.

STIG	Date
MS Windows Defender Antivirus Security Technical Implementation Guide	2019-03-12

Details

Check Text ( C-74999r3_chk )
This is applicable to unclassified systems, for other systems this is NA. Verify the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Defender Antivirus -> MAPS -> "Send file samples when further analysis is required" is set to "Enabled" and "Send safe samples" selected from the drop down box. Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Policies\Microsoft\Windows Defender\Spynet Criteria: If the value "SubmitSamplesConsent" is REG_DWORD = 1, this is not a finding.

Check Text ( C-74999r3_chk )

This is applicable to unclassified systems, for other systems this is NA.

Verify the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Defender Antivirus -> MAPS -> "Send file samples when further analysis is required" is set to "Enabled" and "Send safe samples" selected from the drop down box.

Procedure: Use the Windows Registry Editor to navigate to the following key:
HKLM\Software\Policies\Microsoft\Windows Defender\Spynet

Criteria: If the value "SubmitSamplesConsent" is REG_DWORD = 1, this is not a finding.

Fix Text (F-81859r4_fix)
This is applicable to unclassified systems, for other systems this is NA. Set the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Defender Antivirus -> MAPS -> "Send file samples when further analysis is required" to "Enabled" and select "Send safe samples" from the drop down box.