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This Article Applies to:

  • Essential/Premium/Ultimate Business Security
  • Small Office Protection

Many of the Shields and other components included in Essential/Premium/Ultimate Business Security or Small Office Protection, as well as the main Antivirus itself, enable you to configure exclusions or block specific paths. Wildcards help when you do not know the exact file path or file name of files you want to include or exclude, or if you want to indicate multiple files in one path. Not all file paths allow the use of wildcards.

Character Meaning

Replaces a single character

For example: ab?.html matches the files abc.html, abd.html, abe.html, etc. It will not match the file abc.htm.


Replaces zero or more characters

For example: *mtl matches the files abc.html and d.html. *txt matches the files abc.txt, x.txt, and xyztxt.

Under certain circumstances, you will not get the expected result without using wildcards. For example:

  • To exclude all HTML files, type *.htm* into the text box. Typing .html or .htm into the text box will not include any files because no full file name is represented.
  • To exclude a folder and its sub-folders, add \* to the end of the folder name, for instance C:\example\*.
  • To exclude all files labeled in a certain way on any of your hard drives, include ?:\ in front of the path, for instance ?:\example.exe.

File Exclusion Examples

Normal file path: C:\Program Files\AVAST Software\Avast\*

Executables regardless of file path: *\example.exe

A folder and all contents in any location: *\AVAST Software\*

Other examples:

  • C:\folder\subfolder\filename.ext
  • C:\folder\subfolder\*
  • \\\*

Batch Script Files: You may need to also add exclusions for command-line files executed within batch script files detected as a threat by Avast.

Behavior Shield does not support wildcards within the file path (for example, C:\users\*\application.exe). You can still use a wildcard at the end of the file path, such as C:\users\username\*.

URL Exclusion Examples

For example, to add "" as a URL exclusion, you can use any of the following:

  • **
  • dns://** (to exclude DNS server in the Real Site component)

Script Exclusion Examples

Full script path:

Path using wildcards:

  • */avastclear.exe
  • htt*://*