Predefined profiles (1) showing which filetypes (2) are being blocked (3) msi, encrypted-rar, and encrypted-zip files.Īs mentioned above, the basic profile will not block multi-level encoding-but the strict profile will.

This profile blocks the same file types as the other profile, and additionally blocks flash.

Strict: Use this stricter profile on the Security policy rules that allow access to your most sensitive applications.

This rule alerts on all other file types to give you complete visibility into all file types coming in and out of your network. Additionally, it prompts users to acknowledge when they attempt to download encrypted-rar or encrypted-zip files. hlp) and other potentially malicious file types, including. This profile blocks upload and download of PE files (.

Basic: Attach this profile to the Security policy rules that allow traffic to and from less sensitive applications to block files that are commonly included in malware attack campaigns or that have no real use case for upload/download.

Note that the firewall has 2 predefined File Blocking Profiles: That being said, not any File Blocking Profile will do. A simple way to block files that have more than four levels of encoding is by configuring a File Blocking Profile. You don't want that anything that has more levels of encoding is suspicious and should be blocked. This essentially means that if your firewall isn't configured properly, anything that has more than four levels of encoding will bypass the firewall scans and will be allowed through.

A Word document, in a zip file, sent through HTTP chunk encoding and gzip compression equals four levels of encoding.

A Word document, in a zip file, sent by email equals three levels of encoding.

It's much easier to explain this with a few examples: Simply put, it's the number of encapsulations. Did you know? Palo Alto Networks firewalls are able to decode up to four levels of encoding-an important feature that allows for extra layers of protection.

Mac 7z encoding