CoronaBorealis (Removal Instructions)
CoronaBorealis is a program in the adware category that producess pop-up advertisements in a victim’s web browser after it has been installed. If a computer is infected with CoronaBorealis adware the user may notice advertisements that say “Ads by CoronaBorealis” on them across Chrome, Firefox Internet Explorer, or Safari.
CoronaBorealis adware primarily bundles with other programs that are downloaded by the user with out without consent. The most common way this happens is by downloading a program or file from a questionable distributor. Downloading items online such as freeware and torrent files will result in potentially unwanted programs infecting the user’s system. Even if a program is well known and trustworthy, downloading it from a malicious site will lead to infection.
If the computer user has previously downloaded a malicious program, CoronaBorealis adware could have been downloaded in the background without permission of the user. The user might also be tricked into accepting the download under the guise of a program update. Malicious authors often hide the download behind a terms and conditions page, effectively tricking users into downloading adware. In some instances CoronaBorealis may be advertised as an extension to improve the user’s browsing experience in order to encourage a direct download. Regardless of how the system was infected, removal remains relatively unchanged.
CoronaBorealis Details
| Name | CoronaBorealis, Adware.CoronaBorealis, CoronaBorealis virus *This infection is not technically defined as a computer virus |
| Detection Categories | Adware, Potentially Unwanted Program (PUP) |
| Description | N/A |
| Symptoms | Advertisements in the web browser Browser redirects to sponsored webpages Decreased internet speed and performance Decreased computer functionality and performance Bundles with malware and other potentially unwanted programs |
| Common Path(s) | C:\Program Files (x86) C:\Users\{USER}\Downloads\ C:\Users\{USER}\AppData\Local\Google\Chrome\User Data\Default\Local Storage\ |
| Quick Detection & Removal Tool | Click Here To Download Malwarebytes |
CoronaBorealis Removal Instructions
- Scan your computer with Malwarebytes
- Scan your computer with HitmanPro
- Uninstall CoronaBorealis and unwanted programs
- Remove CoronaBorealis extension
- Cleanup and repair settings with CCleaner
Call Virus Removal Helpline: 1-866-521-2427
1. Scan your computer with Malwarebytes
The first step to remove this adware is to download and install Malwarebytes Anti-Malware software in order to perform a full system scan for malicious files.
1. Download and Install Malwarebytes Anti-Malware software.
2. Open Malwarebytes and click the Scan Now button or go to the Scan tab and click the Start Scan button.
3. When the Malwarebytes scan is complete click the Remove Selected button.
4. To finish the Malwarebytes scan and remove detected threats click the Finish button and restart your computer if promoted to do so.
2. Scan your computer with HitmanPro
The second step to remove this adware is to download and install a second opinion scanner called HitmanPro by Surfright in order to perform a full system scan for malicious files.
1. Download and Install HitmanPro by Surfright.
2. Open HitmanPro and click Next to start scanning your computer. *If you are using the free version you may chose to create a copy or perform a one-time scan.
3. When the HitmanPro scan is complete click the Next button.
4. To activate the free version of HitmanPro: enter your email address twice and click the Activate button.
5. Click the Reboot button.
3. Uninstall CoronaBorealis and unwanted programs
The third step to remove this adware is to uninstall CoronaBorealis and other unwanted programs in Windows Control Panel.
1. Open Windows Start Menu and go to the Control Panel.
2. In the Programs section click Uninstall a program. In earlier versions of Windows this is listed as “Add and remove programs.”
3. Search for CoronaBorealis Supporting Application in the list and double click it.
4. Once you have uninstalled CoronaBorealis, search for other unwanted programs that may be installed on your computer and uninstall them as well.
4. Remove CoronaBorealis extension
The fourth step to remove this adware is to remove unwanted browser add-ons and extensions from Google Chrome, Mozilla Firefox, Microsoft Internet Explorer, and Apple Safari.
Google Chrome
1. Click the Customize and control Google Chrome icon and go to More tools > Extensions.
2. Search for the CoronaBorealis extension in the list and click the trashcan icon.
Mozilla Firefox
1. Open the Menu and click Add-ons.
2. Search for the CoronaBorealis add-on and click Remove.
Microsoft Internet Explorer
1. Go to Tools (Alt+X) and click Manage add-ons.
2. Search for the CoronaBorealis add-on in the list, select it with your mouse, and click Remove.
Apple Safari
1. Go to Safari > Preferences > Extensions.
2. Search for the CoronaBorealis extension in the list and click the Uninstall button.
5. Cleanup and repair settings with CCleaner
The fifth step to remove this adware is to download and install CCleaner by Piriform in order to delete leftover junk files, tracking cookies, registry entries, unwanted start-up tasks, and more.
1. Download and Install CCleaner by Piriform.
2. Open CCleaner and go to the main Cleaner screen. Click the Analyze button. When the process is complete, click the Run Cleaner button on the bottom right of the program interface.
3. Go to Tools > Startup and search for suspicious entries in each tab starting from Windows all the way to Content Menu. If you find anything suspicious click it and click the Delete button to remove it.
4. Go to the Registry window and click the Scan for Issues button. When the scan is complete click the Fix selected issues… button and click Fix All Selected Issues.
