OnShopBase Scam


OnShopBase is a browser hijacking piece of software which can show unwanted ads in your web browser and redirect you to different sites without your approval. In order to promote its ads more effectively, OnShopBase can install different helper components inside the system’s default browser.


The OnShopBase Scam will display pop up ads and windows

The OnShopBase Scam

The OnShopBase scam can integrate with common browsers like Chrome, Edge and Firefox, but other web browsers can also become a target of this program and have their settings changed without notice. This is because the OnShopBase scam operates as a browser hijacker and is programmed to make browser modifications in order to facilitate the promotion of different ads, banners, pop-ups and sponsored web links during the users’ web browsing sessions.

OnShopBase com

If you are on this page, you are probably not only annoyed by the enormous amount of advertisements and redirect prompts that constantly show up on your screen, but also by the unauthorized changes that OnShopBase com has imposed to your browser’s homepage and the default search engine. Fortunately, these changes aren’t fatal for the operation of your computer and can be removed with the help of certain instructions or a professional removal tool like the one that you will find below.

But if you don’t do something about them, they can be unsafe in the long run. This is because the randomly displayed ads, pop-ups, banners and redirect links provided by OnShopBase are typically one of the most common methods of distribution for infections such as Ransomware, Trojans and other viruses. You can easily get infected by malware of this kind if you happen to click on such an ad and it turns out to be misdealing or infected. Therefore, on this page we will show you how to permanently remove these ads and how to uninstall their source.

The OnShopBase Virus

The good news is that the OnShopBase virus that stands behind the ad-generating activity is not a serious online infection but a browser hijacker which is, basically, an online advertisement program that does not usually pose a safety risk for the computer in which it operates. The OnShopBase virus is responsible for the display of various aggressive advertisements on the user’s screen and some potentially unwanted modifications to their web browser.

For example, browser hijackers like OnShopBase, Maincaptchasource, iStart Search Bar may introduce a new search engine to your browser which is programmed to show mostly sponsored search results and pay-per-click advertisements as the top of the page. In addition to that, the program may try to promote a specific website by replacing your homepage address with its address so that every time you open a blank tab, that URL will automatically be loaded. Additional toolbars and buttons may also be installed inside the hijacked browser and some of them may even look attractive and helpful. However, clicking on them may often redirect you to unfamiliar or sketchy web pages and may expose you to even more pop-up messages, banner ads and promotions on your screen. And given the likelihood that a malicious virus (such as ransomware or a Trojan) may hide inside some of these messages it is best to avoid the danger by not clicking on anything. Security experts even advise to uninstall the browser hijacker that displays these ads and makes modifications to your browser as this is the most effective way to prevent a close encounter with different online hazards.


Name OnShopBase
Type Adware/Browser Hijacker
Detection Tool

anti-malware offerOFFER *Read more details in the first ad on this page, EULA, Privacy Policy, and full terms for Free Remover.

Remove OnShopBase Scam

To try and remove OnShopBase quickly you can try this:

  1. Go to your browser’s settings and select More Tools (or Add-ons, depending on your browser).
  2. Then click on the Extensions tab.
  3. Look for the OnShopBase extension (as well as any other unfamiliar ones).
  4. Remove OnShopBase by clicking on the Trash Bin icon next to its name.
  5. Confirm and get rid of OnShopBase and any other suspicious items.

If this does not work as described please follow our more detailed OnShopBase 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


Some of the steps will likely require you to exit the page. Bookmark it for later reference.

Reboot in Safe Mode (use this guide if you don’t know how to do it).



Press CTRL + SHIFT + ESC at the same time and go to the Processes Tab (the “Details” Tab on Win 8 and 10). Try to determine which processes are dangerous.


Right click on each of them and select Open File Location. Then scan the files with our free online virus scanner:

Each file will be scanned with up to 64 antivirus programs to ensure maximum accuracy
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    After you open their folder, end the processes that are infected, then delete their folders.

    Note: If you are sure something is part of the infection – delete it, even if the scanner doesn’t flag it. No anti-virus program can detect all infections.


    Hold together the Start Key and R. Type appwiz.cpl –> OK.


    You are now in the Control Panel. Look for suspicious entries. Uninstall it/them.

    Type msconfig in the search field and hit enter. A window will pop-up:


    Startup —> Uncheck entries that have “Unknown” as Manufacturer or otherwise look suspicious.


    To remove parasite on your own, you may have to meddle with system files and registries. If you were to do this, you need to be extremely careful, because you may damage your system.

    If you want to avoid the risk, we recommend downloading SpyHunter
    a professional malware removal tool.

    More information on SpyHunter, steps to uninstallEULAThreat Assessment Criteria, and Privacy Policy.

    Hold the Start Key and R copy + paste the following and click OK:

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

    A new file will open. If you are hacked, there will be a bunch of other IPs connected to you at the bottom. Look at the image below:

    hosts_opt (1)

    If there are suspicious IPs below “Localhost” – write to us in the comments.

    Open the start menu and search for Network Connections (On Windows 10 you just write it after clicking the Windows button), press enter.

    1. Right-click on the Network Adapter you are using —> Properties —> Internet Protocol Version 4 (ICP/IP), click Properties.
    2. The DNS line should be set to Obtain DNS server automatically. If it is not, set it yourself.
    3. Click on Advanced —> the DNS tab. Remove everything here (if there is something) —> OK.



    • After you complete this step, the threat will be gone from your browsers. Finish the next step as well or it may reappear on a system reboot.

    Right click on the browser’s shortcut —> Properties.

    NOTE: We are showing Google Chrome, but you can do this for Firefox and IE (or Edge).


    Properties —–> Shortcut. In Target, remove everything after .exe.

    Browser Hijacker Removal Instructions

    ie9-10_512x512 Remove OnShopBase from Internet Explorer:

    Open IE, click IE GEAR —–> Manage Add-ons.

    pic 3

    Find the threat —> Disable. Go to IE GEAR —–> Internet Options —> change the URL to whatever you use (if hijacked) —> Apply.

    firefox-512 Remove OnShopBase from Firefox:

    Open Firefox, click mozilla menu ——-> Add-ons —-> Extensions.

    pic 6

    Find the adware/malware —> Remove.
    chrome-logo-transparent-backgroundRemove OnShopBase from Chrome:

    Close Chrome. Navigate to:

    C:/Users/!!!!USER NAME!!!!/AppData/Local/Google/Chrome/User Data. There is a Folder called “Default” inside:

    Rename the Folder to Backup Default

    Rename it to Backup Default. Restart Chrome.


    Type Regedit in the windows search field and press Enter.

    Inside, press CTRL and F together and type the threat’s Name. Right click and delete any entries you find with a similar name. If they don’t show up this way, go manually to these directories and delete/uninstall them:

    • HKEY_CURRENT_USER—-Software—–Random Directory. It could be any one of them – ask us if you can’t discern which ones are malicious.
      HKEY_CURRENT_USER—-Software—Microsoft—-Windows—CurrentVersion—Run– Random
      HKEY_CURRENT_USER—-Software—Microsoft—Internet Explorer—-Main—- Random

    If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!


    About the author


    Lidia Howler

    Lidia is a web content creator with years of experience in the cyber-security sector. She helps readers with articles on malware removal and online security. Her strive for simplicity and well-researched information provides users with easy-to-follow It-related tips and step-by-step tutorials.

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