Title

Microsoft Defender for Endpoint (MDE) must enable Tamper protection. (Cat II impact)

Discussion

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. Tamper protection prevents malicious apps from turning off security features like virus and threat protection, behavior monitoring, cloud-delivered protection, etc., preventing unwanted changes to security solutions and essential functions.

Check Content

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 "Tamper protection" is set to "On". If the slide bar for "Tamper protection" is not set to "On", this is a finding.

Fix Text

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 "Tamper protection" to "On".

Additional Identifiers

Rule ID: SV-275983r1119713_rule

Vulnerability ID: V-275983

Group Title: SRG-APP-000279

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.