Duck Extension Virus

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Duck Extension

Duck Extension is an unwanted malware app that has the ability to hijack the settings of your Windows browser after getting installed through a file-bundle. Duck Extension will set a new homepage address, install a page-redirecting service in the browser, and replace its regular search engine.

Duck Extension

A browser hijacker is a small piece of software that is normally added as a bonus application to the installers of free programs. Most users overlook the fact that there might be some added elements to the installer and install the main program without customizing its setup settings. This, in turn, allows potentially unwanted apps like Duck Extension and other browser hijackers to enter the computer. Once Duck Extension gets installed, it integrates with the system’s main browser. Which the main browser is is oftentimes irrelevant – apps like Duck Extension and Cog Extension are have a wide range of compatibility, and they can be installed inside most browsers. Of course, it is more common to find a hijacker in Chrome, Firefox, Edge, and Safari, but this is because these browsers are the most popular ones. 

The Duck Extension Chrome Virus

Changes in the default search engine tool, the homepage, and the new-tab page addresses, as well as intrusive page-redirects are likely to start to occur once the Duck Extension Chrome virus gets added to the browser. These changes are usually done in order to make the user visit sites that the Duck Extension Chrome virus is programmed to advertise and promote.

For instance, the search engine that Duck Extension has introduced to your browser might show you modified results that favor certain sites that you may not really want to visit. Also, the replacement of the homepage would ensure that each time you open a new browsing session, you’d be automatically boosting the traffic to a certain site. The hijacker is also likely to install new elements in the browser such as page-redirecting services, which would occasionally land you on sites different from the ones you are actually trying to visit.

Needless to say, the activities of Duck Extension , and the chances it make in the browser are sure to quickly decrease the quality of your online Internet experience, and make you want to uninstall the invasive program. The problem here is that you may not be able to – at least not without some external help. You see, the aps of this category are notorious for the difficulty of their removal. Unlike normal programs, most hijackers would probably not let you uninstall them the normal way – they tend to not have uninstallation managers, and they oftentimes do not show up in the extensions list of the browser from where all legitimate add-ons can be removed. This significantly increases the difficulty level of the removal process of apps like Duck Extension , but that is not to say that with proper guidance you won’t be able to get rid of this intrusive program.

In case you are here in order to seek help for the removal of this particular hijacker application, you should definitely take a look at the guide we have prepared for our readers on this page. Our suggestion is to complete the steps you will see there and, to make sure there’s nothing left from the hijacker in your system, try out the highly-effective removal tool that will be linked down this post. If you do everything correctly, you should be able to get the state of your browser back to normal in no time.


NameDuck Extension
Type Browser Hijacker
Detection Tool

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Remove Duck Extension Chrome Virus

If you have a Windows virus, continue with the guide below.

If you have a Mac virus, please use our How to remove Ads on Mac guide.

If you have an Android virus, please use our Android Malware Removal guide.

If you have an iPhone virus, please use our iPhone Virus Removal guide


Some of the steps will likely require you to exit the page. Bookmark it for later reference.

Reboot in Safe Mode (use this guide if you don’t know how to do it).



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Press CTRL + SHIFT + ESC at the same time and go to the Processes Tab (the “Details” Tab on Win 8 and 10). Try to determine which processes are dangerous. 


Right click on each of them and select Open File Location. Then scan the files with our free online virus scanner:

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    After you open their folder, end the processes that are infected, then delete their folders. 

    Note: If you are sure something is part of the infection – delete it, even if the scanner doesn’t flag it. No anti-virus program can detect all infections. 


    Hold together the Start Key and R. Type appwiz.cpl –> OK.


    You are now in the Control Panel. Look for suspicious entries. Uninstall it/them.

    Type msconfig in the search field and hit enter. A window will pop-up:


    Startup —> Uncheck entries that have “Unknown” as Manufacturer or otherwise look suspicious.


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    Hold the Start Key and R –  copy + paste the following and click OK:

    notepad %windir%/system32/Drivers/etc/hosts

    A new file will open. If you are hacked, there will be a bunch of other IPs connected to you at the bottom. Look at the image below:

    hosts_opt (1)

    If there are suspicious IPs below “Localhost” – write to us in the comments.

    Open the start menu and search for Network Connections (On Windows 10 you just write it after clicking the Windows button), press enter.

    1. Right-click on the Network Adapter you are using —> Properties —> Internet Protocol Version 4 (ICP/IP), click  Properties.
    2. The DNS line should be set to Obtain DNS server automatically. If it is not, set it yourself.
    3. Click on Advanced —> the DNS tab. Remove everything here (if there is something) —> OK.


    • After you complete this step, the threat will be gone from your browsers. Finish the next step as well or it may reappear on a system reboot.

    Right click on the browser’s shortcut —> Properties.

    NOTE: We are showing Google Chrome, but you can do this for Firefox and IE (or Edge).


    Properties —–> Shortcut. In Target, remove everything after .exe.

    Browser Hijacker Removal Instructions

    ie9-10_512x512  Remove Duck Extension  from Internet Explorer:

    Open IE, click  IE GEAR —–> Manage Add-ons.

    pic 3

    Find the threat —> Disable. Go to IE GEAR —–> Internet Options —> change the URL to whatever you use (if hijacked) —> Apply.

    firefox-512 Remove Duck Extension  from Firefox:

    Open Firefoxclick  mozilla menu  ——-> Add-ons —-> Extensions.

    pic 6

    chrome-logo-transparent-backgroundRemove Duck Extension  from Chrome:

    Close Chrome. Navigate to:

     C:/Users/!!!!USER NAME!!!!/AppData/Local/Google/Chrome/User Data. There is a Folder called “Default” inside:

    Rename the Folder to Backup Default

    Rename it to Backup Default. Restart Chrome.


    Type Regedit in the windows search field and press Enter.

    Inside, press CTRL and F together and type the threat’s Name. Right click and delete any entries you find with a similar name. If they don’t show up this way, go manually to these directories and delete/uninstall them:

    • HKEY_CURRENT_USER—-Software—–Random Directory. It could be any one of them – ask us if you can’t discern which ones are malicious.
      HKEY_CURRENT_USER—-Software—Microsoft—-Windows—CurrentVersion—Run– Random
      HKEY_CURRENT_USER—-Software—Microsoft—Internet Explorer—-Main—- Random

    If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!


    About the author


    Brandon Skies

    Brandon is a researcher and content creator in the fields of cyber-security and virtual privacy. Years of experience enable him to provide readers with important information and adequate solutions for the latest software and malware problems.

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