Cophypserous Virus

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If your computer has been infected by a program called Cophypserous, then you have landed what is known as a browser hijacker. Cophypserous will embed itself in your main browsing program (e.g. Chrome, Firefox, etc.) and will start spamming it with online ads. 


The main problem with apps like Cophypserous, Wave browser, is that they simply won’t stop meddling with your browser’s settings and with your overall online experience no matter how hard you try to avoid their ads and the new components they may have imposed on your browser. This is surely not as problematic as having a Ransomware virus lock up your files or a Trojan horse corrupt your whole system but it could still be an unpleasant experience that needs to be dealt with.

A hijacker is basically a tool for making money for its creators through the used of different online marketing techniques. To achieve its goal, Cophypserous and other similar apps are likely to set a new homepage and new-tab page addresses to the browser they are installed in as well as replace the search engine service and spam page-redirects and ads. Chrome, Firefox and Safari as well as pretty much any other browser you could think of may all get targeted and invaded by a hijacker as these tools tend to be multi-compatible and are not limited to a single browsing platform. Therefore, it is rather irrelevant what browser you may be using – if you have a hijacker installed on your computer, chances are that you will be subjected to the intrusive and annoying activities of this app every time you make an attempt to use your browsing program to look for something on the Internet.


TypeBrowser Hijacker
Detection Tool

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Please follow all the steps below in order to remove Cophypserous!

How to remove Cophypserous

  1. First, click the Start Menu on your Windows PC.
  2. Type Programs and Settings in the Start Menu, click the first item, and find Cophypserous in the programs list that would show up.
  3. Select Cophypserous from the list and click on Uninstall.
  4. Follow the steps in the removal wizard.

What we suggest you do first is, check the list of programs that are presently installed on the infected device and uninstall any rogue software that you find there:

  • From the Start Menu, navigate to Control Panel ->>> Programs and Features ->>> Uninstall a Program.
  • Next, carefully search for unfamiliar programs or programs that have been installed recently and could be related to Cophypserous.
  • If you find any of the programs suspicious then uninstall them if they turn out to be linked to Cophypserous.
  • If a notification appears on your screen when you try to uninstall a specific questionable program prompting you to just alter it or repair it, make sure you choose NO and complete the steps from the removal wizard.

Remove Cophypserous from Chrome

  1. Click on the three dots in the right upper corner
  2. Go to more tools
  3. Now select extensions
  4. Remove the Cophypserous extension
  • Once you open Chrome, click on the three-dots icon to open the browser’s menu, go to More Tools/ More Options, and then to Extensions.
  • Again, find the items on that page that could be linked to Cophypserous and/or that might be causing problems in the browser and delete them.
  • Afterwards, go to this folder: Computer > C: > Users > *Your User Account* > App Data > Local > Google > Chrome > User Data. In there, you will find a folder named Default – you should change its name to Backup Default and restart the PC.
  • Note that the App Data folder is normally hidden so you’d have to first make the hidden files and folders on your PC visible before you can access it.

How to get rid of Cophypserous on FF/Edge/etc.

  1. Open the browser and select the menu icon.
  2. From the menu, click on the Add-ons button.
  3. Look for the Cophypserous extension
  4. Get rid of Cophypserous by removing it from extensions

If using Firefox:

  • Open Firefox
  • Select the three parallel lines menu and go to Add-ons.
  • Find the unwanted add-on and delete it from the browser – if there is more than one unwanted extension, remove all of them.
  • Go to the browser menu again, select Options, and then click on Home from the sidebar to the left.
  • Check the current addresses for the browser’s homepage and new-tab page and change them if they are currently set to address(es) you don’t know or trust.

If using MS Edge/IE:

  • Start Edge
  • Select the browser menu and go to Extensions.
  • Find and uninstall any Edge extensions that look undesirable and unwanted.
  • Select Settings from the browser menu and click on Appearance.
  • Check the new-tab page address of the browser and if it has been modified by “Cophypserous” or another unwanted app, change it to an address that you’d want to be the browser’s new-tab page.

How to Delete Cophypserous

  1. Open task manager
  2. Look for the Cophypserous process
  3. Select it and click on End task
  4. Open the file location to delete Cophypserous
  • Access the Task Manager by pressing together the Ctrl + Alt + Del keys and then selecting Task Manager.
  • Open Processes and there try to find a process with the name of the unwanted software. If you find it, select it with the right button of the mouse and click on the Open File Location option.
  • If you don’t see a “Cophypserous” process in the Task Manager, look for another suspicious process with an unusual name. It is likely that the unwanted process would be using lots of RAM and CPU so pay attention to the number of resources each process is using.
  • Tip: If you think you have singled out the unwanted process but are not sure, it’s always a good idea to search for information about it on the Internet – this should give you a general idea if the process is a legitimate one from a regular program or from your OS or if it is indeed likely linked to the adware.
  • If you find another suspicious process, open its File Location too.
  • Once in the File Location folder for the suspicious process, start testing all of the files that are stored there by dragging them to our free online scanner available below.
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    • If the scanner finds malware in any of the files, return to the Processes tab in the Task Manager, select the suspected process, and then select the End Process option to quit it.
    • Go back to the folder where the files of that process are located and delete all of the files that you are allowed to delete. If all files get deleted normally, exit the folder and delete that folder too. If one or more of the files showed an error message when you tried to delete them, leave them for now and return to try to delete them again once you’ve completed the rest of the guide.

    How to Uninstall Cophypserous

    1. Click on the home button
    2. Search for Startup Apps
    3. Look for Cophypserous in there
    4. Uninstall Cophypserous from Startup Apps by turning it off
    • Now you need to carefully search for and uninstall any Cophypserous-related entries from the Registry. The easiest way to do this is to open the Registry Editor app (type Regedit in the windows search field and press Enter) and then open a Find dialog (CTRL+F key combination) where you have to type the name of the threat. 
    • Perform a search by clicking on the Find Next button and delete any detected results. Do this as many times as needed until no more results are found. 
    • After that, to ensure that there are no remaining entries lined to Cophypserous in the Registry, go manually to the following directories and delete them:
    • HKEY_CURRENT_USER/Software/Random Directory. 
    • HKEY_CURRENT_USER/Software/Microsoft/Windows/CurrentVersion/Run/Random
    • HKEY_CURRENT_USER/Software/Microsoft/Internet Explorer/Main/Random
    Is Cophypserous a virus?

    Understandably, this could all be quite frustrating to most of the web users and that is why it is important to know how to handle such a predicament. The good news here is the fact that though all the activities conducted by Cophypserous or another app of the hijacker category may be very annoying and unpleasant, it’s actually unlikely that there would be any long-lasting negative consequences in your system caused by the invasive app.
    As we said, having a hijacker in the browser is definitely not the same as getting your computer infiltrated by a Ransomware cryptovirus or attacked by a nefarious Trojan horse infection. Therefore, as long as you remain calm and make use of the instructions inside our guide and/or of the removal tool that can be found linked there, you should be able to easily rid yourself of the presence of the annoying browser hijacker tool.

    How to be careful with future software installation if you don’t want more hijackers?

    The typical methods used to spread this sort of apps is the use of different forms of file bundling. Usually, an app like Cophypserous wouldn’t get distributed on its own and would rather be added to an installation package where it is bundled with other software. Generally, the default settings of such an installation package would involve the installation of all added/bonus components, including the hijacker.
    However, in most cases, there should be an Advanced or a Custom setup menu from where you can choose which of the bonus elements to leave out in case some of them seem like they could be hijackers or some other form of undesirable software.


    About the author


    Violet George

    Violet is an active writer with a passion for all things cyber security. She enjoys helping victims of computer virus infections remove them and successfully deal with the aftermath of the attacks. But most importantly, Violet makes it her priority to spend time educating people on privacy issues and maintaining the safety of their computers. It is her firm belief that by spreading this information, she can empower web users to effectively protect their personal data and their devices from hackers and cybercriminals.

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