How to remove Cervidae malicious extension
Written by Tomas Meskauskas on
What kind of application is Cervidae?
In the course of examining a malicious installer, we encountered Cervidae and its troubling actions as a browser extension. These actions included enabling the "Managed by your organization" feature in the Chrome browser, gathering various types of data, and overseeing specific aspects of the browser.
Cervidae in detail
Cervidae can access and change data on the web pages users visit. That information may include login information, credit card details, browsing history, and other personal details. This poses a risk as the data could be used for malicious purposes, potentially causing privacy breaches, monetary loss, and other problems.
Moreover, Cervidae can change how your browser looks and works by controlling apps, extensions, and themes. This might cause unwanted changes that disrupt browsing or expose users to harmful content. Thus, it is highly advisable not to trust Cervidae or similar browser extensions and remove them.
Furthermore, our investigation revealed that the distribution of Cervidae (its installer) includes additional unwanted software elements, such as the Chromstera web browser. In some cases, programs like Cervidae can come bundled with other unwanted applications like adware, browser hijackers, and similar apps.
It is crucial to be aware that the installers distributing programs like Cervidae could conceal even more harmful threats. These threats may include ransomware, Trojans, cryptocurrency miners, and various types of malware that are created to either steal information, encrypt files, use computer resources for cryptocurrency mining, or carry out other malicious activities.
| Name | Cervidae unwanted extension |
| Threat Type | Malicious Extension |
| Detection Names | Gridinsoft (PUP.Win32.Chromnius.dg!c), Full List (VirusTotal) |
| Symptoms | The "Managed by your organization" is added to the Chrome browser, Chromstera browser is installed, your computer is slower than normal, you see unwanted pop-up ads, you are redirected to dubious websites. |
| Distribution methods | Unofficial 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, applications like Cervidae serve as a stark reminder of the potential threats that can lurk within the digital landscape. These seemingly innocuous browser extensions can have far-reaching consequences, jeopardizing user privacy, altering browser functionality, and even opening the door to more severe security risks.
More examples of similar applications are RanunculusAcris, TriceratopsProrsus, and BellisPerennis.
How did unwanted software install on my computer?
Users often add apps like Cervidae to their web browsers through various means, and these additions may not always be intentional. Users might download software or browser extensions from untrustworthy websites or sources that are not officially recognized or reputable. These sources can distribute applications bundled with unwanted or malicious components, including browser extensions.
Users may install free software or applications from the internet, and during the installation process, they might not pay close attention to the additional components bundled with the software. Deceptive online advertisements can also lead users to click on links that trigger the automatic installation of browser extensions without their knowledge or consent.
Users may be tricked by social engineering tactics, such as fake warnings or prompts that claim they need to install a particular browser extension to access content or features on a website. One known distribution channel of Cervidae is a malicious installer available on a shady page.
How to avoid installation of unwanted applications?
Obtain software and browser extensions exclusively from reputable and official websites or app stores. When installing software, pay close attention to the installation process. Uncheck any boxes or modify settings that prompt the installation of additional software or browser extensions.
Refrain from interacting with pop-up advertisements, suspicious links, or ads on dubious websites. Periodically review and manage your browser extensions. Remove any that seem suspicious, unnecessary, or no longer useful. If your computer is already infected with rogue applications, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate them.
The page distributing the Cervidae app:
Cervidae 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 Cervidae?
- 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 software 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 "Cervidae" and other suspicious extensions, select these entries and click "Remove".
Optional method:
If you continue to have problems with removal of the cervidae unwanted extension, 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 cervidae unwanted extension 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 cervidae unwanted extension, 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 Cervidae cause?
Cervidae possesses the ability to compromise user data privacy, cause disruptions to performance, and a diminished level of control over the browser.
What does Cervidae do?
Cervidae can alter browser settings, including activating the "Managed by your organization" feature. Moreover, it can access user data across various websites and oversee applications and browser themes.
How do Cervidae developers generate revenue?
The creators of Cervidae can generate income by utilizing the user data they gather for targeted advertising or by selling it to third parties. They may also explore avenues like affiliate marketing to achieve financial benefits.
Will Combo Cleaner remove Cervidae?
Combo Cleaner conducts scans on computers and removes unwanted and malicious applications. However, manual removal is not always foolproof, as residual files may sometimes remain in the system even after the software has been deleted.
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