Click on screenshot to zoom
Danger level 7
Type: Browser Hijackers
Common infection symptoms:
  • Hijacks homepage


Some computer security specialists consider Semnager a Trojan infection although based on our research it is one of the files that are part of Linkey plug-in. If you have this file on your computer, it is very likely that you have a list of potentially unwanted applications installed on your system. Also, your default homepage and search engine have been changed to It is clear that removing Semnager alone will not solve anything. You need to terminate all the potentially unwanted and dangerous applications from your computer to restore your system settings to their previous state.

As far as Semnager itself is concerned, it was first discovered in June 12, and it was categorized as a Trojan horse immediately. However, due to the fact that it is said to change your default homepage and search engine, we can say that Semnager is more of a browser hijacker than a Trojan. Not to mention that it is directly linked to Linkey Project browser plug-in. Thus, we can tell that users often install such applications onto their computers themselves, without even realizing that they might be detrimental to their system security.

Linkey Project can be downloaded at the application’s official website – The general information about the application claims that with Linkey plug-in on your computer you will be able to improve your web browsing experience. Semnager is a file that installs Linkey onto your browser. The plug-in affects all the main browsers on the market including Google Chrome, Mozilla Firefox and Internet Explorer.

The most important thing you have to realize is that if you are trying to remove Semnager from your computer, you will have to take care of Linkey plug-in and hijacker as well – they all come together. Do not even think of keeping this search engine on your browser because in the long run it might expose you to a variety of computer security threats.

Do not forget that such browser plug-ins and hijackers are often just tools that are used by cybercriminals to reach their objectives. You might experience personal data theft or constant redirections to unfamiliar websites. To put it simply, if you want to keep your computer safe and clean, you have to get rid of Linkey Project. By terminating Linkey project, you will be able to delete Semnager as well.

If you are not sure whether you terminated all the unwanted files manually, scan the PC with a computer security tool of choice. A reliable malware detection tool will help you remove Semnager automatically for good, at the same time protecting your system against similar infections.

How to remove Linkey Project

Windows 8

  1. Move mouse cursor to the bottom right of your desktop.
  2. Click Settings on Charm bar and go to Control panel.
  3. Select Uninstall a program and remove Linkey Project.

Windows Vista & Windows 7

  1. Open Start menu and click Control panel.
  2. Go to Uninstall a program and remove Linkey Project.

Windows XP

  1. Click Start menu button and go to Control Panel.
  2. Double-click Add or remove programs and uninstall Linkey Project.

Restore your browser settings

Internet Explorer

  1. Press Alt+T and click Internet options.
  2. Change your homepage address under General tab and click OK.
  3. Press Alt+T and go to Manage add-ons.
  4. Click Search providers on the left pane.
  5. Set a new default search engine and remove Default-Search.

Mozilla Firefox

  1. Click the search engine icon on the left of search box.
  2. Select Manage search engines on drop-down menu.
  3. Remove Default-Search from the list and click OK.
  4. Press Alt+T and go to Options.
  5. Change your default homepage address under General tab and click OK.

Google Chrome

  1. Press Alt+F and go to Settings.
  2. Select Open a specific page or set of pages under On Startup.
  3. Click Set pages and change your homepage address. Click OK.
  4. Select Manage search engines under Search.
  5. Set a new default search engine, delete Default-search and click Done.
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