Remove Popunder pop-up ads (Virus Removal Guide)

If you are seeing random pop-up ads from Popunder within Internet Explorer, Firefox and Google Chrome, then your computer is infected with an adware or a potentially unwanted program.

The Popunder pop-up ads are caused by an ad-supported extension for Internet Explorer, Firefox and Chrome, which is distributed through various monetization platforms during installation. This malicious browser extensions is typically added when you install another free software (video recording, download-managers or PDF creators) that had bundled into their installation this adware program.
When this malicious extension is installed, when you will browse the Internet, an ad from Popunder will randomly pop-up. Popunder will display a pop-up box stating that you need to updated or install a piece of software (eg: Java, Flash Player, Web browser). If you click on the “Download”, “Run Update” or “Click to install now” button, instead of installing an update, you’ll agree to download an adware or a malicious programs onto your computer.
The Popunder link may install on your computer potentially unwanted programs like: toolbars (Sweet-Page Toolbar, Delta Toolbar, Trovi Search), adware (WebCake, EnhanceTronic, CouponBuddy) or other forms of malware.

When infected with this malicious program, other common symptoms include:

• Advertising banners are injected with the web pages that you are visiting.
• Random web page text is turned into hyperlinks.
• Browser popups appear which recommend fake updates or other software.
• Other unwanted adware programs might get installed without the user’s knowledge.

You should always pay attention when installing software because often, a software installer includes optional installs, such as this Popunder adware. Be very careful what you agree to install.
Always opt for the custom installation and deselect anything that is not familiar, especially optional software that you never wanted to download and install in the first place. It goes without saying that you should not install software that you don’t trust.

How to remove Popunder pop-up ads (Virus Removal Guide)

This page is a comprehensive guide, which will remove “Popunder” virus from your computer and any other adware program that may have been installed during the setup process.
Please perform all the steps in the correct order. If you have any questions or doubt at any point, STOP and ask for our assistance.

STEP 1: Uninstall the adware program responsible for the Popunder pop-ups
STEP 2: Remove Popunder adware from Internet Explorer, Firefox and Google Chrome with AdwCleaner
STEP 3: Remove Popunder pop-up virus with Malwarebytes Anti-Malware Free
STEP 4: Double-check for the “Popunder” malware with HitmanPro
(Optional) STEP 5: Remove Popunder pop-up ads from Internet Explorer, Firefox and Google Chrome

STEP 1: Uninstall the adware program responsible for the Popunder pop-ups

In this first step, we will try to identify and remove any malicious program that might be installed on your computer.

1. To uninstall a program from Windows XP, Windows Vista or Windows 7, click the “Start” button, then click on the “Control Panel” menu option.
   
   If you are using Windows 8, simply drag your mouse pointer to the right edge of the screen, select Search from the list and search for “control panel” .Or you can right-click on a bottom left hot corner (formerly known as the Start button) and select Control Panel from there.
   
2. When the “Control Panel” window opens click on the “Uninstall a program” option under “Programs” category. This option is shown by the arrow in the image below. If you are using the “Classic View” of the Control Panel, then you would double-click on the “Programs and Features” icon instead.
   
3. When the “Programs and Features” or the “Uninstall a Program” screen is displayed, scroll through the list of currently installed programs and uninstall Popunder, New Player, MediaVideosPlayers, Browsers_Apps_Pro, SavePass, HQualityPro, Sm23mS, Salus, Network System Driver, SS8, SaveDaily Deals, WordProser, Desktop Temperature Monitor, Couponarific, HostSecurePlugin, CheckMeUp and CinemaP-1.8c.
   The malicious program may have a different name on your computer. To view the most recently installed programs, you can click on the “Installed On” column to sort your programs by the installation date. Scroll through the list, and uninstall any unwanted or unknown program.
   If you are having issues while trying to uninstall a program, you can use Revo Uninstaller to completely remove this unwanted program from your machine.

   
   If you cannot find any unwanted or unknown programs on your machine, then you can proceed with the next step.

STEP 2: Remove Popunder adware from Internet Explorer, Firefox and Google Chrome with AdwCleaner

The AdwCleaner utility will scan your computer and web browser for the “Popunder” malicious files, browser extensions and registry keys, that may have been installed on your computer without your knowledge.

1. You can download AdwCleaner from the below link.
   ADWCLEANER DOWNLOAD LINK (This link will download “AdwCleaner” on your computer)
2. Before starting AdwCleaner, close all open programs and internet browsers, then double-click on the AdwCleaner icon.
   
   If Windows prompts you as to whether or not you wish to run AdwCleaner, please allow it to run.
3. When the AdwCleaner program will open, click on the “Scan” button as shown below.
   
   AdwCleaner will now start to search for the “Popunder” malicious files that may be installed on your computer.
4. To remove the “Popunder” malicious files that were detected in the previous step, please click on the “Clean” button.
   
5. AdwCleaner will prompt you to save any open files or documents, as the program will need to reboot the computer. Please do so and then click on the OK button.
   

STEP 3: Remove Popunder pop-up virus with Malwarebytes Anti-Malware Free

Malwarebytes Anti-Malware Free uses industry-leading technology to detect and remove all traces of malware, including worms, Trojans, rootkits, rogues, dialers, spyware, and more.
It is important to note that Malwarebytes Anti-Malware works well and should run alongside antivirus software without conflicts.

1. You can download download Malwarebytes Anti-Malware from the below link.
   MALWAREBYTES ANTI-MALWARE DOWNLOAD LINK (This link will open a new web page from where you can download “Malwarebytes Anti-Malware Free”)
2. Once downloaded, close all programs, then double-click on the icon on your desktop named “mbam-setup-consumer-2.00.xx” to start the installation of Malwarebytes Anti-Malware.
   
   You may be presented with a User Account Control dialog asking you if you want to run this file. If this happens, you should click “Yes” to continue with the installation.
3. When the installation begins, you will see the Malwarebytes Anti-Malware Setup Wizard which will guide you through the installation process.
   
   To install Malwarebytes Anti-Malware on your machine, keep following the prompts by clicking the “Next” button.
   
4. Once installed, Malwarebytes Anti-Malware will automatically start and you will see a message stating that you should update the program, and that a scan has never been run on your system. To start a system scan you can click on the “Fix Now” button.
   
   Alternatively, you can click on the “Scan” tab and select “Threat Scan“, then click on the “Scan Now” button.
   
5. Malwarebytes Anti-Malware will now check for updates, and if there are any, you will need to click on the “Update Now” button.
   
6. Malwarebytes Anti-Malware will now start scanning your computer for the Popunder virus. When Malwarebytes Anti-Malware is scanning it will look like the image below.
   
7. When the scan has completed, you will now be presented with a screen showing you the malware infections that Malwarebytes’ Anti-Malware has detected. To remove the malicious programs that Malwarebytes Anti-malware has found, click on the “Quarantine All” button, and then click on the “Apply Now” button.
   
   Please note that the infections found may be different than what is shown in the image.
8. Malwarebytes Anti-Malware will now quarantine all the malicious files and registry keys that it has found. When removing the files, Malwarebytes Anti-Malware may require a reboot in order to remove some of them. If it displays a message stating that it needs to reboot your computer, please allow it to do so.
   
   After your computer will restart, you should open Malwarebytes Anti-Malware and perform another “Threat Scan” scan to verify that there are no remaining threats

STEP 4: Double-check for the “Popunder” malware infection with HitmanPro

HitmanPro is a second opinion scanner, designed to rescue your computer from malware (viruses, trojans, rootkits, etc.) that have infected your computer despite all the security measures you have taken (such as anti-virus software, firewalls, etc.). HitmanPro is designed to work alongside existing security programs without any conflicts. It scans the computer quickly (less than 5 minutes) and does not slow down the computer.

1. You can download HitmanPro from the below link:
   HITMANPRO DOWNLOAD LINK (This link will open a new web page from where you can download “HitmanPro”)
2. Double-click on the file named “HitmanPro.exe” (for 32-bit versions of Windows) or “HitmanPro_x64.exe” (for 64-bit versions of Windows). When the program starts you will be presented with the start screen as shown below.
   
   Click on the “Next” button, to install HitmanPro on your computer.
   
3. HitmanPro will now begin to scan your computer for Popunder malicious files.
   
4. When it has finished it will display a list of all the malware that the program found as shown in the image below. Click on the “Next” button, to remove Popunder virus.
   
5. Click on the “Activate free license” button to begin the free 30 days trial, and remove all the malicious files from your computer.
   

(Optional) STEP 5: Remove Popunder pop-up ads from Internet Explorer, Firefox and Google Chrome

If you are still experiencing issues with the Popunder pop-up ads in Internet Explorer, Firefox or Chrome, we will need to reset your browser to its default settings. This step needs to be performed only if your issues have not been solved by the previous steps.