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Block a Specific File Type in Web Category in Cyberoam

Applicable to Version: 10.00 onwards


Cyberoam provides default categories, which can be used to block the malicious and objectionable web contents. Category is a grouping of URLs. When we block the category, access to all the URLs get blocked.

In this article, a hypothetical example is illustrated to block specific file type i.e. Executable Files in web category (WebBasedEmail) in Cyberoam.If you want to allow WebBasedEmail category and deny executable file from WebBasedEmail category, then specify Allow action for WebBasedEmail category and add Executable File in Exception list.


Block Executable file type (.exe) for WebBasedEmail category only, while allowing the file type for other categories.


Web and Application Filter Module Subscribed.


You must be logged on to the Web Admin Console as an administrator with Read-Write permission for relevant feature(s).

Step 1: Create Web Filter Policy

Here, the Executable File Type (.exe) has been blocked for WebBasedEmail Category and has been allowed for all other categories.

Go to Web Filter > Policy > Policy and click Add to create a new Web Filter Policy named Block_EXE_Files as shown in the image below.

Click OK and the Web Filter Policy Block_EXE_Files will be created successfully.

Step 2: Add Web Filter Policy Rules

Select the Policy Block_EXE_Files created in Step 1 and click Add to add the Web Filter Policy Rules.

Specify Web Filter Policy Rule as shown in the table below.Here, file type category .exe is blocked.




Category Type

Web Category

Select Category Type for which the rule is to be added.


Web Based Email

Select the Categories which you want to allow/deny for all the sites.

HTTP and

HTTPS Action


Select HTTP and HTTPS action.

File Type Category

Executable Files

To block specific file type, clickExceptionand specify theFile Type Categoryto exclude from this rule


All the time

Select the Schedule for categories selected.


Click OK and the Web Filter Policy Rule will be added successfully.

Step 3: Apply Policy to Firewall Rule or User/User Group

Firewall Rule

You can apply the policy through a Firewall Rule such that it is applied on all traffic that hits on that rule. Go to Firewall > Rule > IPv4 Rule and select desired Firewall Rule.As shown below, apply the Policy created in Step 1.


Click OK to apply the Firewall Rule.

User/User Group

You can apply the rule to individual users or user groups. Here, as an example we have applied the rule on a user named John Smith. To apply the policy on an individual user, go to Identity > Users > Users and select the user on whom policy is to be applied, i.e., John Smith. As shown below, apply the Policy created in Step 1.

Click OK to apply policy on the user.


                                                                                                                                                                                                               Document Version 2.0 – 02 July, 2014



Article ID: 2033