Biosc.xyz Malware - How to remove

Biosc.xyz is a malicious site, a fake search engine. Its main sins are unwanted installation, low-quality search features, and way too many malicious ads. Biosc.xyz comes with a browser extension that uses deception to trick people to install it. Removing Biosc.xyz is easy, once you recognize the problem.

About Biosc.xyz in short:

Type of threat	Adware, browser hijacker.
How Biosc.xyz gets installed	Via deceptive advertisements, bundled with freeware.
Problems and issues	Internet search results show too many ads, the ads are low-quality and open irrelevant websites, Biosc.xyz logs the browsing and search history of the user.
Remove Biosc.xyz	Find and remove malware (with Combo Cleaner for macOS, Spyhunter for Windows, others), find and disable/remove all malicious browser extensions.

What does Biosc.xyz do?

Deceptive installation

Biosc.xyz is a website, a type of Searchgg custom search. It shares a lot of similarities to Mxss.xyz, Bmps.xyz, and other Qxsearch sites. It’s basically a search engine that lacks any useful features. Biosc.xyz takes search results from Google, then adds a few advertisements to the top. The ads are for sites like Izito and Zapmeta, which are also sites of similar quality, but with more dangerous ads.

You would never encounter Biosc.xyz if it wasn’t for a malicious browser extension. These extensions get installed very deceptively, by using the Recommended Extension template and other deceptive sites. Basically, malicious actors create pages that say “please install this extension to continue”, then buy ad-space on sites that don’t have security standards. These fake warnings then pop up and people then think that these are genuine warnings (rather than ads), so they install the malicious extension.

Typically, it’s free movie and TV show sites that show these kinds of ads. Pirating sites and video converters can also be used to spread Biosc.xyz and similar malware.

Malicious extension

Once the malicious browser extension is installed, it gets access to a few browser settings:

• the user’s browsing history,
• full access to any Google.com, Yahoo.com, Bing.com, or Biosc.xyz page.

This allows them to make changes to those sites. Adding and taking away search results, as well as adding a few advertisements. If you notice your search results consistently showing more ads than usual, you can suspect a malicious browser extension.

Extensions that spread Biosc.xyz are similar to Power App, Topsite APP, Alosearch, Omiga Tab, Mycoolweb, Mutli Result (that’s really how it’s spelled), Lucky One Page, etc. They tend to try and stay under the radar once installed, and they all use this icon of a blue sheet with a white ‘A’ on it. They also get banned very quickly, and new ones are released to replace them.

A quick test to see if there’s a malicious extension messing with your browser is to open an Incognito window. Just open your browser’s main menu (the button in the top right corner) and choose to open a private window. This mode disables extensions (unless you enabled them yourself) and shows you how your browser would work if none were installed.

How to remove Biosc.xyz

First, it’s a good idea to scan your computer with an anti-malware application (like Combo Cleaner for Mac, Spyhunter for PC, etc.). Not just to find and remove Biosc.xyz (you can do that manually), but to check for other infections. Adware and other malware can have caused Biosc.xyz to be installed, so just removing Biosc.xyz alone might not be enough.

To uninstall Biosc.xyz from your browser, you need to open extension settings and go through each extension. Press the Details button to check its permissions. If it mentions Biosc.xyz or if it is able to read and change your data on Google and other search engines, that’s suspicious. If it can change your search engine settings, that’s also suspicious. Disable or remove all the extensions that you think are suspicious.

Some antivirus programs are able to recognize malicious extensions and warn your about them, which makes this process a bit easier.

Automatic Malware removal tools

Manually remove browser extensions

TopHow To remove Biosc.xyz Malware from Google Chrome:

• Click on the 3 horizontal lines icon on a browser toolbar and Select More Tools→Extensions
  
• Select all malicious extensions and delete them.
  
• Click on the 3 horizontal lines icon on a browser toolbar and Select Settings
  
• Select Manage Search engines
  
• Remove unnecessary search engines from the list
  
• Go back to settings. On Startup choose Open blank page (you can remove undesired pages from the set pages link too).
• If your homepage was changed, click on Chrome menu on the top right corner, select Settings. Select Open a specific page or set of pages and click on Set pages.
  
• Delete malicious search websites at a new Startup pages window by clicking “X” next to them.
  

(Optional) Reset your browser’s settings

If you are still experiencing any issues related to Biosc.xyz Malware, reset the settings of your browser to its default settings.

• Click on a Chrome’s menu button (three horizontal lines) and select Settings.
• Scroll to the end of the page and click on theReset browser settings button.
  
• Click on the Reset button on the confirmation box.
  

If you cannot reset your browser settings and the problem persists, scan your system with an anti-malware program.

How to remove Biosc.xyz Malware from Microsoft Edge:Top

• Click on the menu button on the top right corner of a Microsoft Edge window. Select “Extensions”.

• Select all malicious extensions and delete them.

• Click on the three-dot menu on the browser toolbar and Select Settings

• Select Privacy and Services and scroll down. Press on Address bar.

• Choose Manage search engines.

• Remove unnecessary search engines from the list: open the three-dot menu and choose Remove.

• Go back to Settings. Open On start-up.
• Delete malicious search websites at Open specific page or pages by opening the three-dot menu and clicking Delete.

(Optional) Reset your browser’s settings If you are still experiencing any issues related to Biosc.xyz, reset the settings of your browser to its default settings

• Click on Edge's menu button and select Settings. Click on the Reset Settings button on the left.
• Press the Restore settings to their default values option.

• Click on the Reset button on the confirmation box.

If you cannot reset your browser settings and the problem persists, scan your system with an anti-malware program.

How To remove Biosc.xyz Malware from Firefox:Top

• Click on the menu button on the top right corner of a Mozilla window and select the “Add-ons” icon (Or press Ctrl+Shift+A on your keyboard).
  
• Go through Extensions and Addons list, remove everything Biosc.xyz Malware related and items you do not recognise. If you do not know the extension and it is not made by Mozilla, Google, Microsoft, Oracle or Adobe then you probably do not need it.
  
• If your homepage was changed, click on the Firefox menu in the top right corner, select Options → General. Enter a preferable URL to the homepage field and click Restore to Default.
  

(Optional) Reset your browser’s settings If you are still experiencing any issues related to Biosc.xyz Malware, reset the settings of your browser to its default settings.

• Click on the menu button on the top right corner of a Mozilla Firefox window. Click on the Help button.
  
• ChooseTroubleshooting Information on the Help menu.
  
• Click on theReset Firefox button.
  
• Click on the Reset Firefox button on the confirmation box. Mozilla Firefox will close and change the settings to default.
  

If the problem persists, scan your system with an anti-malware program to identify malicious entries.