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Chromnius Virus

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*Source of claim SH can remove it.

Chromnius is an undesirable browser hijacking application that latches onto browsers such as Chrome, Edge, Firefox, and others, coercing users to visit unfamiliar websites. Additionally, Chromnius displays pay-per-click ads, various sponsored banners, and pop-ups during web browsing sessions, aiming to generate revenue for its creators.

What is Chromnius?

Chromnius is a browser hijacker that, although not as serious as Ransomware or a Trojan Horse threat, can still cause problems for users. For instance, the program can hjack various web browsers, forcing their users to visit unfamiliar and potentially harmful websites. It also can start displaying pay-per-click ads, sponsored banners, and pop-ups during web browsing sessions.

Chromnius can also alter the browser’s settings, including the default search engine, homepage, and new tab page. As a result, users may find themselves directed to unwanted web pages that are filled with ads or even malicious content. Moreover, this program can collect users’ browsing history, search queries, and other personal information, which can be sold to third-party advertisers or used for malicious purposes.

The intrusive activities of Chromnius can cause significant disruptions to users’ browsing experience, leading to frustration and a loss of productivity. It can slow down the browser’s performance, cause crashes, and make it challenging to complete tasks online. In worst-case scenarios, it can compromise users’ security by exposing them to phishing scams, malware, and other online threats. Therefore it is crucial to take appropriate action and remove the invasive page-redirecting and ad-generating tool before it may cause significant issues.

Is Chromnius a virus?

No, Chromnius is not a virus but a potentially unwanted program. However, is Chromnius safe? In contrast to websites with built-in ads that can be managed or blocked, the Chromnius virus is a software specifically designed to display hundreds of random sponsored ads on every webpage visited by the user. An ad-blocker is ineffective against the intrusive advertising materials that Chromnius aggressively pushes during web surfing, and attempts to remove the newly imposed browser changes are likely to be fruitless.

The modifications made by browser hijackers like Chromnius are typically considered unwanted for two reasons: first, they are generally not directly approved by users, and second, their sole purpose is to increase the quantity and intrusiveness of invasive advertisements, which constantly urge users to buy something, visit a specific URL, download additional software, or sign up for a questionable online service.

What do you do if your browser has been hijacked?

Browser hijackers, such as Chromnius, are programmed to encourage users to click on various sponsored ads linking to promoted websites, as this generates revenue from their ad-displaying and page-redirecting activities. However, the reliability of the displayed links and promotional messages is not guaranteed, and clicking on ads presented by an app like Chromnius could lead to sketchy or potentially harmful websites containing viruses, Trojans, Ransomware, or other malware.

Therefore, the optimal solution is to permanently eliminate the ads and uninstall the hijacker from the system. This will restore the browser’s safety and stability while reducing the chances of encountering questionable web locations through random redirects. To address the Chromnius hijacker issue, users should employ a comprehensive removal guide that outlines all necessary steps. By following these instructions, users can safely remove Chromnius and its ads, regain control of their browsers, and minimize the risk of exposure to potentially dangerous websites or malware.

Maintaining a secure browsing environment requires vigilance and proactive measures. Users should keep their operating systems and browsers up-to-date, use reputable antivirus software and firewalls, and be cautious when clicking on links or pop-ups. By adhering to these best practices, users can mitigate the risks associated with browser hijackers like Chromnius and enjoy a safer online experience.


TypeBrowser Hijacker
Detection Tool

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*Source of claim SH can remove it.

How to uninstall Chromnius

Users who want to remove Chromnius as quickly as possible may try to use these quick instructions below: 

  1. Launch the affected browser
  2. Tap on the browser’s settings icon and select More Tools (or Add-ons, depending on what browser you are using).
  3. Open the Extensions tab and in the list of extensions try to find the Chromnius extension
  4. Highlight it and select Remove (or directly click on the Trash Bin icon next to it) 
  5. Next, look for other extensions that you have not installed by yourself and remove them as well.

In case that these instructions aren’t effective, please use the more detailed Chromnius removal guide below.

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

Firstly, we will advise you to Bookmark this page as you will need to refer back to it in order to complete the removal of Chromnius. 

Next, boot the computer in Safe Mode (use the link for help).


*Source of claim SH can remove it.

After you have booted in Safe Mode, open the Task Manager (press CTRL + SHIFT + ESC keys from the keyboard). Once the window opens, select the second tab that saysProcesses”  (Details” in Windows 8 and 10). This will display a detailed list of processes that are currently active on your computer. Look at them and try to figure out which processes are linked to Chromnius and could be a source of your problems. 

Once you find such processes, highlight them individually and Right click on every single one of them. From the menu that opens, select Open File Location. Scan the files found in that location with our free online virus scanner in order to determine if they are dangerous:

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    After you scan the files in the folders and detect that there are threats, end the processes related to these files and delete their folders. 

    Next, in the Run dialog (press Start + R key to open it) type appwiz.cpl

    Click OK to run the command and you will enter the Control Panel. 

    Once inside the Control Panel, look for questionable or unfamiliar entries that could be related to Chromnius and Uninstall them.

     After that, open the Run dialog again (Start+R key) and type msconfig in the text field. Hit the Enter key of your keyboard. This will open the system configuration pop-up:

    Select the Startup tab and carefully look through the list of applications there. Remove the checkmark from any apps that might be linked to Chromnius or look suspicous and have an “Unknown”  Manufacturer.

    Next, again open the Run dialog but this time copy the following in the text field:

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

    Hit the Enter key to execute it and this will open a simple text file on your screen named Hosts.

    In the text, head to where it says “Localhost” and see if there are different IP addresses under that section.  See the image below:

    If there are other IPs, this might be an indication that you have been hacked. Please, write us in the comments below this article for more instructions on how to proceed in this case.

    In your Start Menu, open the Network Connections. Once there, do the following:

    1. Right-click on the Network Adapter that is currently in use
    2. Select Properties > Internet Protocol Version 4 (ICP/IP), then again click  Properties.
    3. Set the DNS to Obtain DNS server address automatically
    4. Next, click on Advanced and in the window that opens select the DNS tab. Remove everything in this field and click OK.

    The instructions in this step will help you remove Chromnius from your browser. Please complete them to prevent the problematic program from reapearing after a system reboot.

    Attention! We are demonstrating the steps in Google Chrome but if you are using another browser, you shold do this for it as well.

    Find the browser’s shortcut on your desktop and right-click it. Then, select Properties.

    In Properties choose the Shortcut tab. Find the field where it says Target, and make sure that you remove everything after .exe.

      Remove Chromnius from Internet Explorer:

    In case that IE is the browser that has been affected by Chromnius, launch the browser and click   (this is the menu icon at the upper left corner)Then, select Manage Add-ons.

    In the Add-ons list try to find the threat and Disable it.

    Next, go to the gear icon once again and choose the Internet Options. Programs like Chromnius may change the Home Page URL to whatever they want and if this is the case, place your preferred Home Page address and click on Apply.

     Remove Chromnius from Firefox:

    If Firefox has been your main browser and Chromnius has hijacked itclick  the menu icon at the upper left corner and choose Add-ons. Then click on the Extensions tab from the left panel. Remove any problematic or questionable extensions that could be related to Chromnius from the list.

    Remove Chromnius from Chrome:

    After you are done with the steps above, Close Chrome and navigate to:

     C:/Users/!!!!USER NAME!!!!/AppData/Local/Google/Chrome/User Data. Find the Folder called “Default” and Rename it to Backup Default. After that Relaunch Chrome.

    In this final step, you need to find and remove all traces of Chromnius from the Registry Editor. For that, firstly open the Registry Editor (Type Regedit in the windows search field and press Enter).

    In the Editor, press CTRL and F key combination and type the Name of the threat that you are looking for.  The entries that are found with this or a similiar name should be deleted by right clicking on them.

    Alternatively, if nothing is found with the help of the above methond,  manually mavigate to the following directories and delete them:

    • HKEY_CURRENT_USER/Software/Random Directory. 
      HKEY_CURRENT_USER/Software/Microsoft/Internet Explorer/Main/Random

    You can ask us in the comments if you are not sure what needs to be deleted. In case the guide isn’t effective in dealing with Chromnius completely, we suggest that you download the professional removal program recommended on this page or use our free online virus scanner

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