Chapter 15 Security Profiles : Application control : Enable application control : Creating a New Custom Application Signature
  
Creating a New Custom Application Signature
If you have to deal with an application that is not already in the Application List you have the option to create a new one.
1. Go to Security Profiles > Application Control.
2. Select the link in the upper right corner, [View Application Signatures]
3. Select the Create New icon
4. Give the new signature a name (no spaces) in the Name field.
5. Enter a brief description in the Comments field
6. Enter the text for the signature in the signature field. Use the rules found in the Custom IPS signature chapter to determine syntax.
7. Select OK.