Remove “Spyware & virus blocker [221]” adware (Removal Guide)

Spyware & virus blocker [221] is an adware program that injects unwanted advertisements on web sites that you visit. Spyware & virus blocker [221] claims that it will “Protect you from sites that attempt to scam you”. Whether this software is able to do this or not is unknown. What is known is that this program will cause web sites you visit to be overrun with unwanted advertisements that make it difficult to use the requested site.

What is Spyware & virus blocker [221]?

Spyware & virus blocker [221] is advertised as a program that will protect your browsers from malicious web pages while you are navigating on the Internet. Though this may sound like a useful service, the Spyware & virus blocker [221] program can be intrusive and will display ads whether you want them to or not.
When installed, the Spyware & virus blocker [221] browser extension will display advertising banners, pop-up advertisements and in-text ads, stating that they are brought to you by Spyware & virus blocker [221]. The Spyware & virus blocker [221] Ads will have different text under the pop-up: “Powered by Spyware & virus blocker [221]”, “Brought to you by Spyware & virus blocker [221]”, “You’ve received a premium offer from Spyware & virus blocker [221]” or “Ads by Spyware & virus blocker [221]”.
Ads By Spyware & virus blocker [221] pop-up virus
These ads are aimed to promote the installation of additional questionable content including web browser toolbars, optimization utilities and other products, all so the Spyware & virus blocker [221] publisher can generate pay-per-click revenue.
When infected with Spyware & virus blocker [221] the 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.

How did Spyware & virus blocker [221] got on my computer?

Spyware & virus blocker [221] is an adware program that is commonly bundled with other free programs that you download off of the Internet.
Unfortunately, some free downloads do not adequately disclose that other software will also be installed and you may find that you have installed Spyware & virus blocker [221] without your knowledge. Most commonly Spyware & virus blocker [221] is bundled within the installers from Cnet, Softonic or other similar custom third-party installers.

You should always pay attention when installing software because often, a software installer includes optional installs, such as this Spyware & virus blocker [221] 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.

Spyware & virus blocker [221] Overview:

  • Spyware & virus blocker [221] will inject pop-up ads, advertising banners and in-text ads within your web browser
  • Adware detected in the Spyware & virus blocker [221] program (Spyware & virus blocker [221].exe, Spyware & virus blocker [221]-bg.exe, Spyware & virus blocker [221]-bho64.dll, Spyware & virus blocker [221]-nova.exe)
  • Integrates into the web browser via the Spyware & virus blocker [221] browser extension
  • Typically distributed through a pay-per-install bundle or with third-party software (example: CNET installer, Softonic Installer, InstallRex installer and many more)
  • Spyware & virus blocker [221] has a poor reputation within the MalwareTips Community

How to remove Spyware & virus blocker [221] Ads (Virus Removal Guide)

This page is a comprehensive guide, which will remove Spyware & virus blocker [221] adware 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 Spyware & virus blocker [221] from Windows
STEP 2: Remove “Ads by Spyware & virus blocker [221]” adware with AdwCleaner
STEP 3: Remove Spyware & virus blocker [221] adware with Malwarebytes Anti-Malware
STEP 4: Double-check for the “Ads by Spyware & virus blocker [221]” malware with HitmanPro
(Optional) STEP 5: Reset Internet Explorer, Firefox or Google Chrome settings to remove Spyware & virus blocker [221] Ads

If you are using an Apple Mac OS X operating system, please follow this Remove virus from Apple Mac OS X (Pop-up Ads and Adware)  guide to remove Spyware & virus blocker [221] adware.

STEP 1 : Uninstall Spyware & virus blocker [221] from Windows

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

  1. Go to the uninstall menu.

    Windows 10 or Windows 8

    1. To uninstall a program on Windows 10 or Windows 8, right-click on the Windows Start button and choose “Control Panel” from the pop-up menu.
      Control Panel in Windows 10
    2. When the “Control Panel” window opens click on the “Uninstall a program” option under “Programs” category.
      Uninstall A Program on Windows 10

    Windows 7 or Windows Vista

    1. If you are using Windows XP, Windows Vista or Windows 7, click the “Start” button, then click on the “Control Panel” menu option.
      [Image: Control Panel in Windows Start Menu]
    2. When the “Control Panel” window opens click on the “Uninstall a program” option under “Programs” category.
      [Image: Uninstall a program]
  2. When the “Programs and Features” screen is displayed, scroll through the list of currently installed programs and uninstall “Spyware & virus blocker [221]”.
    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 program by the installation date. Scroll through the list, and uninstall any unwanted or unknown programs.

    If you are having issues while trying to uninstall the Spyware & virus blocker [221] program, you can use Revo Uninstaller to completely remove this unwanted program from your machine.

    Remove Spyware & virus blocker [221] from Windows

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

STEP 2: Remove “Ads by Spyware & virus blocker [221]” adware with AdwCleaner

The AdwCleaner utility will scan your computer for the Spyware & virus blocker [221] adware and other unwanted browser extensions, 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 open a new web page from where you can download “AdwCleaner”)
  2. Before starting AdwCleaner, close your web browser, then double-click on the AdwCleaner icon.
    Start AdwCleaner
    Picture of User Account Control 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 Scan button
    AdwCleaner will now start to search for adware and other malicious files that may be installed on your computer.
  4. To remove the malicious files that were detected in the previous step, please click on the “Cleaning” button.
    Remove Spyware & virus blocker [221] adware with AdwCleaner
  5. AdwCleaner will prompt you to save any open files or documents, as the program will need to reboot the computer to complete the cleaning process. Please do so, and then click on the “OK” button.
    AdwCleaner removing adware
    When your computer reboots and you are logged in, AdwCleaner will automatically open a log file that contains the files, registry keys, and programs that were removed from your computer.

STEP 3: Remove Spyware & virus blocker [221] adware with Malwarebytes Anti-Malware

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” to start the installation of Malwarebytes Anti-Malware.
    Start Malwarebytes Anti-Malware setup
    Picture of User Account Control 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.
    Malwarebytes Anti-Malware Installer
    To install Malwarebytes Anti-Malware on your machine, keep following the prompts by clicking the “Next” button.
    Malwarebytes Anti-Malware final screen
  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 “Scan Now” button.
    Malwarebytes Anti-Malware Scan Now
  5. Malwarebytes Anti-Malware will now start scanning your computer for the Spyware & virus blocker [221] adware. When Malwarebytes Anti-Malware is scanning it will look like the image below.
    Malwarebytes Anti-Malware Scanning for Malware
  6. When the scan has completed, you will be presented with a screen showing the malware infections that Malwarebytes Anti-Malware has detected. To remove the malicious programs that Malwarebytes Anti-malware has found, click on the “Remove Selected” button.
    Remove the malware that Malwarebytes Anti-Malware has detected
    Please note that the infections found may be different than what is shown in the image.
  7. 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.
    Malwarebytes Anti-Malware asking to restart PC
    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 “Ads by Spyware & virus blocker [221]” malware 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.
    HitmanPro Installer
    Click on the “Next” button, to install HitmanPro on your computer.
    itmanPro while installing on PC
  3. HitmanPro will now begin to scan your computer for the Spyware & virus blocker [221] malware.
    HitmanPro scanning
  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 malware.
    HitmanPro detected malware
  5. Click on the “Activate free license” button to begin the free 30 days trial, and remove all the malicious files from your computer.
    Remove malware with HitmanPro

(Optional) STEP 5: Reset Internet Explorer, Firefox or Google Chrome settings to remove Spyware & virus blocker [221] Ads

If you are still experiencing issues with the Spyware & virus blocker [221] advertisements 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.

Reset Internet Explorer

You can reset Internet Explorer settings to return them to the state they were in when Internet Explorer was first installed on your PC.

  1. Open Internet Explorer, click on the “gear iconIE Icon Gear in the upper right part of your browser, then click again on Internet Options.
    [Image: Internet Options in Internet Explorer]
  2. In the “Internet Options” dialog box, click on the “Advanced” tab, then click on the “Reset” button.
    [Image: Reset Internet Explorer]
  3. In the “Reset Internet Explorer settings” section, select the “Delete personal settings” check box, then click on “Reset” button.
    [Image: Reset Internet Explorer to its default settings to remove Spyware & virus blocker [221]]
  4. When Internet Explorer has completed its task, click on the “Close” button in the confirmation dialogue box. You will now  need to close your browser, and then you can open Internet Explorer again.
    [Image Reset Internet Explorer settings]

Reset Mozilla Firefox

If you’re having problems with Firefox, resetting it can help. The reset feature fixes many issues by restoring Firefox to its factory default state while saving your essential information like bookmarks, passwords, web form auto-fill information, browsing history and open tabs.

  1. In the upper-right corner of the Firefox window, click the Firefox menu button ([Image: Firefox Menu button]), then click on the “Help” ([Image: Firefox Help button]) button.
    Firefox Help button
  2. From the Help menu, choose Troubleshooting Information.
    If you’re unable to access the Help menu, type about:support in your address bar to bring up the Troubleshooting information page.
    Troubleshooting Information in Firefox
  3. Click the “Refresh Firefox” button in the upper-right corner of the “Troubleshooting Information” page.
    Refresh Firefox button
  4. To continue, click on the “Refresh Firefox” button in the new confirmation window that opens.
    Reset Firefox settings to default
  5. Firefox will close itself and will revert to its default settings. When it’s done, a window will list the information that was imported. Click on the “Finish“.

Note: Your old Firefox profile will be placed on your desktop in a folder named “Old Firefox Data“. If the reset didn’t fix your problem you can restore some of the information not saved by copying files to the new profile that was created. If you don’t need this folder any longer, you should delete it as it contains sensitive information.

Reset Google Chrome

The Chrome Cleanup Tool application will scan and remove software that may cause problems with Chrome, such as crashes, unusual startup pages or toolbars, unexpected ads you can’t get rid of, or otherwise changing your browsing experience.

  1. You can download Chrome Cleanup Tool from the below link.
    CHROME CLEANUP TOOL DOWNLOAD LINK (This link will open a new web page from where you can download “Chrome Cleanup Tool”)
  2. When Chrome Cleanup Tool has finished downloading, start this program by double-clicking on the chrome_cleanup_tool icon as seen below.
    Double click on the Chrome Cleanup Tool icon
  3. Chrome Cleanup Tool will now scan Google Chrome for adware and browser hijackers. The scan should take less than 1 minute, and will report whether it found any malicious programs or not. If any malicious programs were detected, click on the “Remove suspicious programs” button and wait for the tool to tell you it has completed the process.
    Chrome Cleanup Tool Scanning
    If Chrome Cleanup Tool has not detected anything suspicious, then you can click on the “Continue” button and move to the next step.
    Chrome Cleanup Tool detecting adware
  4. Next, a new tab in Google Chrome will open, prompting you to reset Chrome to default settings. We recommend that you perform this reset as usually this will remove any browser hijackers that might affect your browser.
    Chrome Cleanup Tool Reset Google Chrome

Your computer should now be free of the Spyware & virus blocker [221] adware infection.
If you are still experiencing problems while trying to remove “Ads By Spyware & virus blocker [221]” pop-up ads from your machine, please do one of the following:

If your current security solution allowed this program on your computer, you may want to consider purchasing the full-featured version of Malwarebytes Anti-Malware to protect against these types of threats in the future. We also recommend that you perform regular scans with HitmanPro to prevent these type of infections.

How to Stay Safe Online

Here are 10 basic security tips to help you avoid malware and protect your device:

  1. Use a good antivirus and keep it up-to-date.

    Shield Guide

    It's essential to use a good quality antivirus and keep it up-to-date to stay ahead of the latest cyber threats. We are huge fans of Malwarebytes Premium and use it on all of our devices, including Windows and Mac computers as well as our mobile devices. Malwarebytes sits beside your traditional antivirus, filling in any gaps in its defenses, and providing extra protection against sneakier security threats.

  2. Keep software and operating systems up-to-date.

    updates-guide

    Keep your operating system and apps up to date. Whenever an update is released for your device, download and install it right away. These updates often include security fixes, vulnerability patches, and other necessary maintenance.

  3. Be careful when installing programs and apps.

    install guide

    Pay close attention to installation screens and license agreements when installing software. Custom or advanced installation options will often disclose any third-party software that is also being installed. Take great care in every stage of the process and make sure you know what it is you're agreeing to before you click "Next."

  4. Install an ad blocker.

    Ad Blocker

    Use a browser-based content blocker, like AdGuard. Content blockers help stop malicious ads, Trojans, phishing, and other undesirable content that an antivirus product alone may not stop.

  5. Be careful what you download.

    Trojan Horse

    A top goal of cybercriminals is to trick you into downloading malware—programs or apps that carry malware or try to steal information. This malware can be disguised as an app: anything from a popular game to something that checks traffic or the weather.

  6. Be alert for people trying to trick you.

    warning sign

    Whether it's your email, phone, messenger, or other applications, always be alert and on guard for someone trying to trick you into clicking on links or replying to messages. Remember that it's easy to spoof phone numbers, so a familiar name or number doesn't make messages more trustworthy.

  7. Back up your data.

    backup sign

    Back up your data frequently and check that your backup data can be restored. You can do this manually on an external HDD/USB stick, or automatically using backup software. This is also the best way to counter ransomware. Never connect the backup drive to a computer if you suspect that the computer is infected with malware.

  8. Choose strong passwords.

    lock sign

    Use strong and unique passwords for each of your accounts. Avoid using personal information or easily guessable words in your passwords. Enable two-factor authentication (2FA) on your accounts whenever possible.

  9. Be careful where you click.

    cursor sign

    Be cautious when clicking on links or downloading attachments from unknown sources. These could potentially contain malware or phishing scams.

  10. Don't use pirated software.

    Shady Guide

    Avoid using Peer-to-Peer (P2P) file-sharing programs, keygens, cracks, and other pirated software that can often compromise your data, privacy, or both.

To avoid potential dangers on the internet, it's important to follow these 10 basic safety rules. By doing so, you can protect yourself from many of the unpleasant surprises that can arise when using the web.