How to remove NegaprionBrevirostris malicious extension
Written by Tomas Meskauskas on
What kind of application is NegaprionBrevirostris?
Upon testing the NegaprionBrevirostris app, it became clear that it is malicious and capable of compromising the privacy and security of users. This extension has been discovered while examining a malicious installer downloaded from an unreliable website. Thus, users are advised not to trust this app and remove it from affected browsers.
NegaprionBrevirostris in detail
NegaprionBrevirostris is a highly concerning malicious application due to its extensive and invasive capabilities. It can read and change all data on all websites and manage apps, extensions, and themes in Chrome browsers.
By having the authority to read and modify data on all websites, it gains access to a wide range of information, potentially compromising user privacy and exposing sensitive data. This poses significant risks, as the app can interfere with the content of web pages and inject unwanted advertisements or malicious code.
Additionally, NegaprionBrevirostris can manipulate apps, extensions, and themes within Chrome browsers, potentially leading to further security vulnerabilities and disruptions in a user's online experience.
Furthermore, NegaprionBrevirostris can enable the "Managed by your organization" feature in Chrome browsers. Usually, enabling the "Managed by your organization" feature or setting means that an external entity, such as an IT department or administrator, has control over certain aspects of the Chrome browser's configuration.
While this setting can be legitimate in a corporate or educational environment to enforce policies, its activation by a malicious app like NegaprionBrevirostris can cause several issues for users. Users may lose control over critical browser settings, such as the homepage, search engine, and extensions.
Also, NegaprionBrevirostris may use the "Managed by your organization" feature to collect user data, monitor online activities, or enforce settings that compromise privacy. Moreover, the app may implement security policies that prevent users from installing necessary security updates or extensions, leaving them vulnerable to online threats.
It is important to mention that the installer distributing NegaprionBrevirostris contains the Chromstera browser and possibly other unwanted components (e.g., browser hijackers or adware).
| Name | NegaprionBrevirostris unwanted application |
| Threat Type | Malicious Extension |
| Detection Names (Installer) | Gridinsoft (PUP.Win32.Chromnius.dg!c), Full List (VirusTotal) |
| Symptoms | The "Managed by your organization" feature is activated in Chrome browser, Chromstera browser is installed, your computer becomes slower than normal, you see unwanted pop-up ads, you are redirected to dubious websites. |
| Distribution methods | Dubious websites, malicious installers, deceptive pop-up ads, free software installers (bundling), torrent file downloads. |
| Damage | Internet browser tracking (potential privacy issues), display of unwanted ads, redirects to dubious websites, loss of private information. |
| Malware Removal (Windows) | To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Combo Cleaner. |
Conclusion
In conclusion, NegaprionBrevirostris is a malicious app with extensive capabilities that pose severe risks to user privacy, security, and control over their online experience. Users should exercise utmost caution to prevent the installation or addition of NegaprionBrevirostris or similar malicious apps, as they can have far-reaching and detrimental consequences.
More examples of apps similar to NegaprionBrevirostris are AmebelodonFricki, Hyaenidae, and CucurbitaPepo.
How did unwanted software install on my computer?
Applications similar to NegaprionBrevirostris are frequently surreptitiously introduced to devices through cunning tactics. For example, they may be disseminated via deceptive installers found on untrustworthy websites. Another prevalent method involves "software bundling," where unwanted apps accompany intentionally downloaded ones, often escaping users' notice.
These applications can also infiltrate systems through counterfeit pop-ups, advertisements, third-party app stores, peer-to-peer networks, third-party downloaders, and other means.
How to avoid installation of unwanted applications?
Before acquiring new applications, it is advisable to conduct thorough research by examining reviews, ratings, and other relevant information. Always obtain software from reputable sources, such as official websites or recognized app stores.
During the installation process of programs, be vigilant for checkboxes or settings, typically found under options like "Advanced" or "Custom", which allow you to opt out of bundled software. Consistently update your system and applications. Finally, exercise caution when dealing with suspicious websites, their associated links, or advertisements.
If your computer is already infected with rogue applications, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate them.
A website that hosts a malicious installer that contains NegaprionBrevirostris:
NegaprionBrevirostris app information:
Instant automatic malware removal:
Manual threat removal might be a lengthy and complicated process that requires advanced IT skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
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Quick menu:
- What is NegaprionBrevirostris?
- STEP 1. Uninstall unwanted applications using Control Panel.
- STEP 2. Remove rogue plug-ins from Google Chrome.
- STEP 3. Remove unwanted extensions from Mozilla Firefox.
- STEP 4. Remove malicious extensions from Safari.
- STEP 5. Remove rogue plug-ins from Microsoft Edge.
Unwanted software removal:
Windows 11 users:
Right-click on the Start icon, select Apps and Features. In the opened window search for the application you want to uninstall, after locating it, click on the three vertical dots and select Uninstall.
Windows 10 users:
Right-click in the lower left corner of the screen, in the Quick Access Menu select Control Panel. In the opened window choose Programs and Features.
Windows 7 users:
Click Start (Windows Logo at the bottom left corner of your desktop), choose Control Panel. Locate Programs and click Uninstall a program.
macOS (OSX) users:
Click Finder, in the opened screen select Applications. Drag the app from the Applications folder to the Trash (located in your Dock), then right click the Trash icon and select Empty Trash.
In the uninstall programs window, look for any unwanted applications, select these entries and click "Uninstall" or "Remove".
After uninstalling the unwanted application, scan your computer for any remaining unwanted components or possible malware infections. To scan your computer, use recommended malware removal software.
Remove unwanted apps from Internet browsers:
Video showing how to remove unwanted browser add-ons:
Remove malicious extensions from Google Chrome:
Click the Chrome menu icon 
(at the top right corner of Google Chrome), select "Extensions" and click "Manage Extensions". Locate "NegaprionBrevirostris" and other suspicious extensions, select these entries and click "Remove".
Optional method:
If you continue to have problems with removal of the negaprionbrevirostris unwanted application, reset your Google Chrome browser settings. Click the Chrome menu icon (at the top right corner of Google Chrome) and select Settings. Scroll down to the bottom of the screen. Click the Advanced… link.
After scrolling to the bottom of the screen, click the Reset (Restore settings to their original defaults) button.
In the opened window, confirm that you wish to reset Google Chrome settings to default by clicking the Reset button.
Remove malicious plug-ins from Mozilla Firefox:
Click the Firefox menu 
(at the top right corner of the main window), select "Add-ons and themes". Click "Extensions", in the opened window locate all recently-installed suspicious extensions, click on the three dots and then click "Remove".
Optional method:
Computer users who have problems with negaprionbrevirostris unwanted application removal can reset their Mozilla Firefox settings.
Open Mozilla Firefox, at the top right corner of the main window, click the Firefox menu, in the opened menu, click Help.
Select Troubleshooting Information.
In the opened window, click the Refresh Firefox button.
In the opened window, confirm that you wish to reset Mozilla Firefox settings to default by clicking the Refresh Firefox button.
Remove malicious extensions from Safari:
Make sure your Safari browser is active, click Safari menu, and select Preferences....
In the opened window click Extensions, locate any recently installed suspicious extension, select it and click Uninstall.
Optional method:
Make sure your Safari browser is active and click on Safari menu. From the drop down menu select Clear History and Website Data...
In the opened window select all history and click the Clear History button.
Remove malicious extensions from Microsoft Edge:
Click the Edge menu icon 
(at the upper-right corner of Microsoft Edge), select "Extensions". Locate all recently-installed suspicious browser add-ons and click "Remove" below their names.
Optional method:
If you continue to have problems with removal of the negaprionbrevirostris unwanted application, reset your Microsoft Edge browser settings. Click the Edge menu icon (at the top right corner of Microsoft Edge) and select Settings.
In the opened settings menu select Reset settings.
Select Restore settings to their default values. In the opened window, confirm that you wish to reset Microsoft Edge settings to default by clicking the Reset button.
- If this did not help, follow these alternative instructions explaining how to reset the Microsoft Edge browser.
Summary:
Commonly, adware or potentially unwanted applications infiltrate Internet browsers through free software downloads. Note that the safest source for downloading free software is via developers' websites only. To avoid installation of adware, be very attentive when downloading and installing free software. When installing previously-downloaded free programs, choose the custom or advanced installation options – this step will reveal any potentially unwanted applications listed for installation together with your chosen free program.
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Frequently Asked Questions (FAQ)
What harm can NegaprionBrevirostris cause?
NegaprionBrevirostris has the potential to inflict significant damage, encompassing data breaches, privacy infringements, and manipulation of your browser configurations. It introduces security vulnerabilities, unwelcome alterations to websites, and the possibility of performance-related problems. The actions of this extension may undermine both online security and privacy.
What does NegaprionBrevirostris do?
This extension is capable of both reading and modifying data on websites, granting it access to sensitive information and the ability to manipulate the content of web pages. Furthermore, it possesses the capability to oversee browser extensions and themes, potentially resulting in unauthorized alterations to your browser's settings. Most notably, it can activate the "Managed by your organization" feature, thereby conferring it substantial control over a web browser.
How do NegaprionBrevirostris developers generate revenue?
The developers behind NegaprionBrevirostris may be generating revenue through practices such as injecting ads, engaging in affiliate marketing, and potentially monetizing users' personal data by selling it to third-party entities. Additionally, they might employ misleading tactics to extract money from unsuspecting users.
Will Combo Cleaner remove NegaprionBrevirostris?
Combo Cleaner performs a comprehensive computer scan to remove any undesirable applications. Attempting to remove these applications without the aid of specialized software can be ineffective, as remnants of files may persist within the system even after uninstalling the unwanted software.
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