CoronaBorealis Ads

What is CoronaBorealis?

CoronaBorealis is a dubious application falsely claiming to provide various 'valuable features'. On initial inspection, this program may seem legitimate, however, CoronaBorealis is classed as a potentially unwanted program (PUP) and adware.

One of the main reasons for these negative associations is stealth installation - CoronaBorealis often infiltrates systems without users’ consent. In addition, the app generates various intrusive advertisements and tracks Internet browsing activity.

This PUP employs a 'virtual layer' to generate pop-up, banner, and other similar advertisements. These ads conceal underlying content of visited websites. This app often adds a search bar to the top of each web page visited. The bar redirects to search.whitesmoke.com or trovi.com. 

By displaying content-overlaying advertisements, CoronaBorealis significantly diminishes the Internet browsing experience. Furthermore, it is highly probable that displayed ads will lead to malicious websites containing infectious content - clicking them is risky and may cause further computer infections.

Furthermore, this adware collects various information relating to Internet browsing activity (for example, IP addresses, websites visited, etc.). Be aware that some of this data might be personally identifiable. The developers of this PUP share collected information with third parties who misuse personal data to generate revenue.

This behavior can lead to serious privacy issues or even identity theft. If you continually encounter ads generated by this adware (usually marked as 'Powered by CoronaBorealis'), uninstall all recently-installed suspicious programs.

There are hundreds of programs with similar behavior to CoronaBorealis. For instance, applications such as AnyFlix, WebDiscover, and Elements Peruse also claim to enable valuable functions. These claims are merely attempts to trick users to install.

In fact, adware-type programs never provide the functionality promised - they cause unwanted browser redirects, collect personal data, and deliver intrusive online advertisements. They are designed only to generate revenue for the developers and are useless for users.

How did CoronaBorealis install on my computer?

CoronaBorealis is distributed as a 'bundle' with other programs. The developers know that most users do not express enough caution when downloading and installing software. Therefore, they intentionally conceal PUPs within the 'Custom' or either 'Advanced download/installation settings.

Users who carelessly rush these procedures, and skip most/all steps, commonly install bogus programs inadvertently.

How to avoid installation of potentially unwanted applications?

To prevent this situation, be cautious when downloading and installing software. Observe each step using the 'Custom' or 'Advanced' settings. Furthermore, all offers to download or install additional applications should be declined.

CoronaBorealis adware search bar (redirecting Internet users to the trovi.com and whitesmoke.com websites):

CoronaBorealis adware delivering intrusive online advertisements ('Powered by CoronaBorealis'):

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Quick menu:

• What is CoronaBorealis?
• STEP 1. Uninstall CoronaBorealis application using Control Panel.
• STEP 2. Remove CoronaBorealis adware from Internet Explorer.
• STEP 3. Remove CoronaBorealis ads from Google Chrome.
• STEP 4. Remove 'Ads by CoronaBorealis' from Mozilla Firefox.
• STEP 5. Remove CoronaBorealis ads from Safari.
• STEP 6. Remove rogue plug-ins from Microsoft Edge.

CoronaBorealis adware removal:

Windows 11 users:

Right-click on the Start icon, select Apps and Features. In the opened window search for the application you want to uninstall, after locating it, click on the three vertical dots and select Uninstall.

Windows 10 users:

Right-click in the lower left corner of the screen, in the Quick Access Menu select Control Panel. In the opened window choose Programs and Features.

Windows 7 users:

Click Start (Windows Logo at the bottom left corner of your desktop), choose Control Panel. Locate Programs and click Uninstall a program.

macOS (OSX) users:

Click Finder, in the opened screen select Applications. Drag the app from the Applications folder to the Trash (located in your Dock), then right click the Trash icon and select Empty Trash.

In the uninstall programs window, look for "CoronaBorealis", select this entry and click "Uninstall" or "Remove".

After uninstalling the potentially unwanted program that causes CoronaBorealis ads, scan your computer for any remaining unwanted components or possible malware infections. To scan your computer, use recommended malware removal software.

Remove CoronaBorealis adware from Internet browsers:

At time of research, CoronaBorealis did not install its browser plug-ins on Internet Explorer, Google Chrome, or Mozilla Firefox, however, it was bundled with other adware. Therefore, you are advised to remove all potentially unwanted browser add-ons from your Internet browsers.

Video showing how to remove potentially unwanted browser add-ons:

Remove malicious add-ons from Internet Explorer:

Click the "gear" icon (at the top right corner of Internet Explorer), select "Manage Add-ons". Look for any recently-installed suspicious browser extensions, select these entries and click "Remove".

Optional method:

If you continue to have problems with removal of the coronaborealis adware, reset your Internet Explorer settings to default.

Windows XP users: Click Start, click Run, in the opened window type inetcpl.cpl In the opened window click the Advanced tab, then click Reset.

Windows Vista and Windows 7 users: Click the Windows logo, in the start search box type inetcpl.cpl and click enter. In the opened window click the Advanced tab, then click Reset.

Windows 8 users: Open Internet Explorer and click the gear icon. Select Internet Options.

In the opened window, select the Advanced tab.

Click the Reset button.

Confirm that you wish to reset Internet Explorer settings to default by clicking the Reset button.

Remove malicious extensions from Google Chrome:

Click the Chrome menu icon (at the top right corner of Google Chrome), select "Tools" and click "Extensions". Locate all recently-installed suspicious browser add-ons, select these entries and click the trash can icon.

Optional method:

If you continue to have problems with removal of the coronaborealis adware, reset your Google Chrome browser settings. Click the Chrome menu icon  (at the top right corner of Google Chrome) and select Settings. Scroll down to the bottom of the screen. Click the Advanced… link.

After scrolling to the bottom of the screen, click the Reset (Restore settings to their original defaults) button.

In the opened window, confirm that you wish to reset Google Chrome settings to default by clicking the Reset button.

Remove malicious plug-ins from Mozilla Firefox:

Click the Firefox menu (at the top right corner of the main window), select "Add-ons". Click "Extensions", in the opened window, remove all recently-installed suspicious browser plug-ins.

Optional method:

Computer users who have problems with coronaborealis adware removal can reset their Mozilla Firefox settings.

Open Mozilla Firefox, at the top right corner of the main window, click the Firefox menu, in the opened menu, click Help.

Select Troubleshooting Information.

In the opened window, click the Refresh Firefox button.

In the opened window, confirm that you wish to reset Mozilla Firefox settings to default by clicking the Refresh Firefox button.

Remove malicious extensions from Safari:

Make sure your Safari browser is active, click Safari menu, and select Preferences....

In the opened window click Extensions, locate any recently installed suspicious extension, select it and click Uninstall.

Optional method:

Make sure your Safari browser is active and click on Safari menu. From the drop down menu select Clear History and Website Data...

In the opened window select all history and click the Clear History button.

Remove malicious extensions from Microsoft Edge:

Click the Edge menu icon  (at the upper-right corner of Microsoft Edge), select "Extensions". Locate all recently-installed suspicious browser add-ons and click "Remove" below their names.

Optional method:

If you continue to have problems with removal of the coronaborealis adware, reset your Microsoft Edge browser settings. Click the Edge menu icon  (at the top right corner of Microsoft Edge) and select Settings.

In the opened settings menu select Reset settings.

Select Restore settings to their default values. In the opened window, confirm that you wish to reset Microsoft Edge settings to default by clicking the Reset button.

• If this did not help, follow these alternative instructions explaining how to reset the Microsoft Edge browser.

Summary:

Commonly, adware or potentially unwanted applications infiltrate Internet browsers through free software downloads. Note that the safest source for downloading free software is via developers' websites only. To avoid installation of adware, be very attentive when downloading and installing free software. When installing previously-downloaded free programs, choose the custom or advanced installation options – this step will reveal any potentially unwanted applications listed for installation together with your chosen free program.

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