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Solved: How do I block WhatsApp file uploads action by using application control?

This article describes how to deny uploading images, documents, or videos in WhatsApp web conversation by using the application control signature.

In order to control web WhatsApp upload traffic that would require enabling SSL deep inspection + application control profile in the firewall policy.

Step 1: Go to Security Profiles > Application Control.

Step 2: Select the Profile Name.

Step 3: Select the Edit.

Step 4: Inside the profile, go to Application and Filter Overrides.

Step 5: Select the Create New.

Step 6: Go to Action Block.

Step 7: Search for application signature: WhatsApp_Web_File.Upload.

Step 8: Right-click and + Add Selected.

Go to Action Block and Search for application signature: WhatsApp_Web_File.Upload, right mouse button and + Add Selected.

Step 9: Enable QUIC protocol option with an action block.

Enable 'QUIC' protocol option with an action block.

Step 10: Use application control profile in the firewall policy with SSL deep inspection.

Use application control profile in the firewall policy with SSL deep inspection.

Alex Lim is a certified IT Technical Support Architect with over 15 years of experience in designing, implementing, and troubleshooting complex IT systems and networks. He has worked for leading IT companies, such as Microsoft, IBM, and Cisco, providing technical support and solutions to clients across various industries and sectors. Alex has a bachelor’s degree in computer science from the National University of Singapore and a master’s degree in information security from the Massachusetts Institute of Technology. He is also the author of several best-selling books on IT technical support, such as The IT Technical Support Handbook and Troubleshooting IT Systems and Networks. Alex lives in Bandar, Johore, Malaysia with his wife and two chilrdren. You can reach him at [email protected] or follow him on Website | Twitter | Facebook

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