How to Block JavaScript or VBScript from Launching Downloaded Executable Content using Intune

This Intune policy is designed to enhance endpoint security by preventing JavaScript and VBScript from automatically launching executable files that users download. These scripting languages, while useful for automation, can be exploited by attackers to run malicious code without user consent.

By configuring this policy, IT administrators can reduce the risk of malware infections across managed devices. The setup involves accessing the Intune Admin Portal, creating a new policy under Attack Surface Reduction, and specifying key details like the policy name, description, and scope tags. Admins can choose from four enforcement modes—Not Configured, Block, Audit, and Warn—depending on their organization’s security posture and monitoring needs.

Once deployed, the policy provides clear feedback through notifications and device check-in status reports, helping admins confirm successful application. Audit mode is particularly useful for observing script behavior before enforcing stricter controls.

Verification on the client side can be done via Event Viewer logs, offering granular insight into how the policy is functioning. This layered approach ensures that organizations can tailor their defenses while maintaining visibility into potential threats, making it a valuable tool for proactive security management.

[New Post] 🎆How to Block JavaScript or VBScript from Launching Downloaded Executable Content using Intune

📌What Are JavaScript and VBScript Used For

📌How This Policy Protects Endpoints

📌How to Configure This Policy in Intune

📌What End Users Can Expect

📌Why This Policy Is Important

📌What Risks This Rule Mitigates

📌How This ASR Rule Works

🛡️ Purpose of the Policy

• Enhances endpoint protection by preventing JavaScript and VBScript from launching downloaded executable files.
• Mitigates risks from malware that exploit script-based automation.

⚙️ Configuration Steps in Intune

• Access Intune Admin Portal → Go to Endpoint security > Attack surface reduction > Create Policy.
• Basics Tab → Name the policy clearly (e.g., “Block JavaScript or VBScript…”).

Settings Options:

• Not configured: No enforcement.
• Block: Fully prevents script execution.
• Audit: Logs script activity without blocking.
• Warn: Alerts users before execution.
• Scope Tags → Assign tags for organizational grouping.
• Assignments → Target specific users/devices/groups.
• Review & Create → Confirm all settings before deployment.

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