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V-278669

CAT II (Medium)

Microsoft Defender AV must enable real-time protection and Security Intelligence Updates during OOBE.

Rule ID

SV-278669r1190758_rule

STIG

Microsoft Defender Antivirus Security Technical Implementation Guide

Version

V2R8

CCIs

CCI-002624

Discussion

Always-on protection consists of real-time protection, behavior monitoring, and heuristics to identify malware based on known suspicious and malicious activities. These activities include events, such as processes making unusual changes to existing files, modifying or creating automatic startup registry keys and startup locations (also known as autostart extensibility points, or ASEPs), and other changes to the file system or file structure.

Check Content

Verify the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Defender Antivirus >> Real-time Protection >> Configure real-time protection and Security Intelligence Updates during OOBE is set to "Enabled"; otherwise, this is a finding.

Procedure: Use the Windows Registry Editor to navigate to the following key: 
HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection

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

If the value is 0, this is a finding.

Fix Text

Set the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Defender Antivirus >> Real-time Protection >> Configure real-time protection and Security Intelligence Updates during OOBE to "Enabled".