Datasheet

32 z Norman Security Suite - User’s Guide

makes it possible to replace an .exe extension with a{...} extension and

thus evade blocking of .exe files. Since there is no reason for legitimate

attachments to use this type of extension, this behavior is blocked by

default.

Block encrypted attachments: depending on the tools used,

compressed and encrypted files are generally harder to scan for viruses

than plain file attachments. Therefore NIP offers the option of blocking

such attachments altogether.

Block all attachments listed below (default option): all names that

you Add to the list are blocked. Enter a specific name, or use wildcard

(‘*’) to identify attachments to stop. See “Attachment list” below.

Block all attachments, except those listed below: all names that you

Add to the list are accepted. Enter a specific name, or use wildcard

(‘*’) to identify attachments to accept. See “Attachment list” below.

Note: It is very important that you distinguish carefully between these

two options, as they represent two extremes: block all entries in

the list, or accept all entries in the list.

Attachment list

Use this function to explicitly select attachments you want to block —

or certify. You can enter the exact name of an attachment, or use

wildcard (‘*’) to block certain extensions. To block all .exe files, for

example, click on Add and enter *.exe. Click OK, and the entry

appears in the list box, where you later can edit or remove it.