4.nbryb Virus


4.nbryb is an app that may fill your Android smartphone or tablet with dozens of intrusive pop-up ads, banners, and redirect links. Security researchers recognize 4.nbryb as a browser hijacker and advise users to uninstall it for a number of reasons.

The 4.nbryb Virus

A piece of software such as 4.nbryb cannot be easily ignored due to its aggressive ad-generation and page-redirections. The app may try to constantly fill your screen with sponsored advertisements and prompt you to click on various colorful notifications that automatically reroute you to random sites. For many users, dealing with this kind of advertising on their Android device can quickly become very annoying.

The 4.nbryb Virus

Aside from spamming the screen with commercials, the 4.nbryb virus may make some unauthorized changes in the main web browser (be that the default Internet app, Chrome, Firefox, etc.). That may include a substitution of the homepage with a sponsored URL or the installation of a new search engine that serves as an auto-rerouting tool.

If not removed, apps like 4.nbryb may take full control of the device they are installed on and not only make changes to its settings and spam it with ads but also collect details regarding the user’s browsing activity. The latter is another good reason not to keep such software on your device.

Despite its irritating traits, however, 4.nbryb significantly distinguishes from serious security threats such as Ransomware, Rootkits, or Trojan viruses.  As a matter of fact, none of the hijacker’s activities would harm your smartphone or tablet directly. However, they can theoretically expose it to malware-infected web material such as phishing pages, misleading web ads, dangerous links, etc.

Furthermore, most browser hijackers, including 4.nbryb, may obtain a variety of rights and permission in the Android system in order to track your activities and establish control of your browser and other software.

In regards to all that we have said so far, it should be clear that if you have 4.nbryb, it will be better to uninstall it. The manual removal guide below describes how.


TypeBrowser Hijacker

Remove 4.nbryb Virus

If you have an Android virus, continue with the guide below.

If you have an iPhone virus, please use our iPhone Virus Removal guide.

If you have a Mac virus, please use our How to remove Ads on Mac guide.

If you have a Windows virus, please use our Windows Virus Removal guide.


Whether you use the default “Internet” App for browsing or a different browser like Chrome you need to go to:
Settings/More/Application Manager/All

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Locate the Browser/App in question and tap on it.


Now the method is effectively the same for users using both “Internet” and Chrome/Other Browsers, yet for more clarity we have provided instructions for both:

For “Internet” Browser Users:

Tap the Force Stop button.

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Now tap the Clear Data and Clear Cache Buttons.

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For Google Chrome Users:

Click on  Force Stop.

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Then click on Clear Data and Clear Cache.

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Restart your Browser. It might be a good idea to Reboot your Android device, just in case.

  • Important!

If you are still seeing Ads in your browser, it is likely they are generated by the websites you visit and there is nothing you can do about it.

However, if you are seeing Adverts outside of your internet browser, then one of your installed Apps contains the problematic Adware. In this case you need to take a look at this guide.

Did we help you? Please, consider helping us by spreading the word!


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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