Online criminals hate us. We protect you from attacks that antivirus can't block.

How does Traffic Scanning work?

What is traffic scanning?

This Heimdal engine provides two options:  Traffic Filtering and Automatically disable Traffic Filtering

By turning this engine ON or OFF you will ENABLE or DISABLED both Traffic Filtering and Automatically  disable Traffic Filtering

 

How does Traffic Filtering work?

When this engine is enabled, Heimdal PRO will apply a filter on the network adapter that will scan for infected websites and other web locations (servers, online ads, etc) that can potential install malware or be used as gateways for cyber-attacks.

How it works:

  1. Heimdal will change the DNS (Domain Name System) for IPv4 and IPv6.
  • For the IPv4 it will change it from „Obtain DNS server addresses automatically” or from an already set DNS (that will be backed up in a registry) to 127.0.0.1
  • For the IPv6 it will change it to : : 1
  1. Once the DNS is set, then every web location you access via the Internet will be processed through a database that is set locally on the Heimdal install path. This database is about 15 MB in size and 95% of the websites blocked are located here.
  2. If the website is identified as being infected, Heimdal Pro will block it and will block it and you will see this message:

     

  1. If the website is not blocked after being processed through the local database it will pass there is a second step. The website will be parsed through another database, in the cloud (about 6GB in size) where it will be checked again. If it’s found to be malicious, Heimdal PRO will block it. If it’s safe, you’ll just be able to see the website/banner normally.

 

Note: All this filtering process takes place in milliseconds and will not affect your internet connection speed.

 

What is Automatically disable traffic filtering?

If Heimdal can’t connect to the cloud servers from your location, Traffic Filtering won’t work properly. This may disconnect your PC from the Internet. To avoid this, you can choose to automatically disable Traffic Filtering. Heimdal will automatically re-enable the feature when it can reconnect to the cloud servers.

Was this article helpful?
1 out of 1 found this helpful
Have more questions? Submit a request

0 Comments

Article is closed for comments.