Microsoft Defender for Endpoint (MDE) must enable Live Response.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-275989	SRG-APP-000279	MSDE-00-001000	SV-275989r1119719_rule	2025-07-15	1

Description
Malicious code protection mechanisms include, but are not limited to, antivirus and malware detection software. To minimize potential negative impact to the organization that can be caused by malicious code, it is imperative that malicious code is identified and eradicated. This setting allows users with appropriate RBAC permissions to investigate devices they are authorized to access, using a remote shell connection.

Description

Malicious code protection mechanisms include, but are not limited to, antivirus and malware detection software. To minimize potential negative impact to the organization that can be caused by malicious code, it is imperative that malicious code is identified and eradicated. This setting allows users with appropriate RBAC permissions to investigate devices they are authorized to access, using a remote shell connection.

ℹ️ Check
Access the MDE portal as a user with at least an MDE Administrator or equivalent role: 1. In the navigation pane, select Settings >> Endpoints >> Advanced features (under General). 2. Verify the slide bar for "Live Response" is set to "On". If the slide bar for "Live Response" is not set to "On", this is a finding.

✔️ Fix
Access the MDE portal as a user with at least an MDE Administrator or equivalent role: 1. In the navigation pane, select Settings >> Endpoints >> Advanced features (under General). 2. Set the slide bar for "Live Response" to "On".