Click on screenshot to zoom
Danger level 7
Type: Adware
Common infection symptoms:
  • Annoying Pop-up's
  • Shows commercial adverts
  • Connects to the internet without permission


Some adware applications can be installed and remove without any difficulties. WebAdSystem is one of them. It is an application for the French adware market, and it is intended for computer users who often shop online. Just like an extensive number of similar adware applications, WebAdSystem tries to “help” save as much money as possible while you buy things online. This program cannot do any harm on its own, but we have to remember that adware programs often become involved in various third-party scams. Thus sooner you remove WebAdSystem from your computer the better.

Users can download this application at KalityWeb is credited as the publisher of WebAdSystem, and its digital signature is signed by Contextual Network SL. Based on the information at KalityWeb, this program selects the “web’s best online shops and we present those that interest you, without effort on your part, thanks to the unique technology of your buying guide.”

Naturally, if this program could really provide you with such service it would be great. However, it is very unlikely that WebAdSystem will help you purchase goods at a lower price. Upon the installation, WebAdSystem pops up a registration window. According to the information, this registration window and the application’s website, with this program installed on your PC, you will often see ads related to the websites you visit. But the problem is that based on our security research, WebAdSystem does seldom generate commercial advertisements on its own.

It is true that WebAdSystem can create commercial ads and display them on affiliate websites, but we are forced to assume that the program relies on third-party advertising networks for the ads content. In such a case, we encounter a serious problem.

Although WebAdSystem does not intend to infect you with malware or steal your sensitive data, in some cases malevolent third parties could exploit it to promote their corrupted content. In other words, you might think that you are clicking a link to an online shopping website, but in fact, you would be redirected to a dangerous page that distributes adware. WebAdSystem ads might also lead to you affiliate websites that thrive on pay-per-click system, and you would only help them to make a profit by increasing their web traffic.

Thus, it is necessary to remove WebAdSystem from your computer at once. This program may not be extremely dangerous, but adware applications are highly vulnerable, and they can lead to serious computer security threats.

Open Control Panel and uninstall WebAdSystem manually. If this program came with other apps, terminate them as well. If you do not know which programs arrived with WebAdSystem, scan the PC with SpyHunter free scanner and you will get a list of unwanted programs immediately. Then, get yourself a powerful antispyware tool and get rid of all the potential threats automatically.

How to remove WebAdSystem

Windows 8

  1. Slide mouse cursor to the bottom right corner of the screen.
  2. When Charm bar appears click Settings and go to Control Panel.
  3. Select Uninstall a program and remove WebAdSystem.

Windows Vista & Windows 7

  1. Open Start menu and select Control panel.
  2. Go to Uninstall a program and remove WebAdSystem.

Windows XP

  1. Click Start menu button and click Settings.
  2. Go to Control panel and select Add or remove programs.
  3. Uninstall WebAdSystem.
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