How to remove AllosaurusFragilis malicious extension from browsers
Written by Tomas Meskauskas on
What kind of program is AllosaurusFragilis?
Following an examination, it has been determined that AllosaurusFragilis is a questionable browser extension endowed with the capability to retrieve diverse information, alter themes and other extensions, and enable the "Managed by your organization" feature in Chrome and Edge browsers. Consequently, users are strongly advised to eliminate AllosaurusFragilis.
AllosaurusFragilis in detail
The capacity of AllosaurusFragilis to read and alter data on websites visited by users raises significant concerns regarding privacy and security. This suggests that the extension might access and manipulate sensitive information entered on various websites, putting data such as passwords, credit card details, and other information at risk.
Moreover, AllosaurusFragilis is equipped to oversee themes and extensions in the user's browser, enabling it to make additions, removals, and disablements. Such manipulation of browser elements can result in an altered browsing experience, unanticipated shifts in browser behavior, or the introduction of potentially harmful components.
Furthermore, AllosaurusFragilis is specifically crafted to activate the "Managed by your organization" feature in Chrome and Edge browsers. Enabling this feature through an application like AllosaurusFragilis can lead to a range of issues, such as relinquishing user control over browser configurations, undesired policy enforcement, heightened privacy risks, potential security vulnerabilities, interference with other extensions, and complications in the removal of the application.
It is crucial to highlight that AllosaurusFragilis is distributed through a malicious installer, bundled with the Chromstera browser and potentially other unwanted applications like browser hijackers or adware. Consequently, users impacted by this should conduct a comprehensive system scan to eliminate AllosaurusFragilis and any associated applications.
| Name | AllosaurusFragilis unwanted application |
| Threat Type | Malicious Extension |
| Detection Names (Installer) | Avast (FileRepMalware [Misc]), BitDefender (Gen:Variant.Application.Agent.183), Emsisoft (Gen:Variant.Application.Agent.183 (B)), Kaspersky (Not-a-virus:HEUR:AdWare.Win32.WebCompanion.gen), Symantec (PUA.Gen.2), Full List (VirusTotal) |
| Symptoms | The "Managed by your organization" feature is activated in Chrome and Edge browsers, 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 summary, AllosaurusFragilis poses a considerable risk to the online security and privacy of users. Its diverse set of functionalities, such as manipulating data on visited websites, managing themes and extensions, and activating organizational features, underscores the need for heightened vigilance.
Examples of applications that share the same or virtually identical capabilities are JuniperusCommunis, StenonychosaurusInequalis, and CasuariusCasuarius.
How did unwanted software install on my computer?
It is common for applications of this kind to come bundled with other software during installation. Users may overlook the bundled software and end up installing additional programs they did not intend to. In most cases, users agree to install unwanted apps by leaving the provided settings (e.g., "Advanced" or "Custom") unchanged or checkboxes ticked.
Clicking on misleading or deceptive advertisements (e.g., pop-up ads and banners) or fake download buttons and visiting compromised or untrustworthy websites can also lead to the download and installation of unwanted applications. Sometimes, users download and install shady apps via malicious emails containing attachments or links.
How to avoid installation of unwanted applications?
Obtain software and applications from official websites or trusted app stores. Pay close attention to the installation settings/options during software installation and uncheck any boxes or change settings that offer to install additional software or browser extensions that you do not want. Regularly update your operating system and software.
Download software updates only from official websites or through the built-in update mechanisms of the software. Avoid clicking on pop-up messages, banners, and similar content on suspicious pages. Be skeptical of unsolicited messages, especially those that urge you to take immediate action.
If your computer is already infected with rogue applications, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate them.
AllosaurusFragilis app information:
Website promoting AllosaurusFragilis:
AllosaurusFragilis on Edge browser:
Instant automatic malware removal:
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Quick menu:
- What is AllosaurusFragilis?
- STEP 1. Uninstall unwanted applications using Control Panel.
- STEP 2. Remove rogue plug-ins from Google Chrome.
- STEP 3. Remove dubious 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 shady 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 "AllosaurusFragilis" and other suspicious extensions, select these entries and click "Remove".
Optional method:
If you continue to have problems with removal of the allosaurusfragilis 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 allosaurusfragilis 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 allosaurusfragilis 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 AllosaurusFragilis cause?
AllosaurusFragilis has the potential to inflict diverse harms, including invading privacy through unauthorized access and collection of sensitive user data, introducing security threats and vulnerabilities, altering browser settings, displaying unwarranted advertisements, causing performance issues in the system, and interfering with other software.
What does AllosaurusFragilis do?
AllosaurusFragilis is equipped to activate the "Managed by your organization" feature, retrieve information from all visited pages, and manage extensions and themes within a browser.
How do AllosaurusFragilis developers generate revenue?
The developers of AllosaurusFragilis could generate revenue by presenting intrusive ads and redirecting users to different websites. Furthermore, there is a possibility that they may engage in the collection and sale of user data to third parties.
Will Combo Cleaner remove AllosaurusFragilis?
Combo Cleaner is recommended for conducting a thorough computer scan to detect and remove potentially harmful applications that could be present on a computer. Using specialized software such as Combo Cleaner is advisable for eliminating unwanted apps, as manual removal methods may not be entirely effective.
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