How to remove StratocumulusCastellanus malicious extension
Written by Tomas Meskauskas on
What kind of program is StratocumulusCastellanus?
When examining the app, we noted that StratocumulusCastellanus is a shady app that can read and change data on websites, manage themes and extensions within a browser, and activate the "Managed by your organization" feature in Chrome and Edge browsers. Moreover, StratocumulusCastellanus is distributed via a malicious installer.
StratocumulusCastellanus in detail
One concerning aspect of the StratocumulusCastellanus app is its ability to activate the "Managed by your organization" feature in both Chrome and Edge browsers. This feature, when triggered by the app, grants it additional control over browser settings, potentially allowing it to enforce policies and configurations.
Users may find themselves subject to unwanted changes in their browsing experience, such as altered homepage settings, restricted access to certain websites, or the imposition of policies that compromise their preferences.
Another alarming feature of the StratocumulusCastellanus app is its capacity to access and manipulate information displayed on web pages visited by users. This raises the risk of unauthorized access to sensitive information, such as login credentials, personal details, or financial data. Also, it could result in misleading or compromised information being presented to users.
Additionally, the StratocumulusCastellanus app exhibits the capability to manage themes and extensions within a browser. It can modify the visual appearance of the browser and remove, add, or disable other extensions. Unwanted changes to browser configurations may impact performance, introduce security vulnerabilities, or even expose users to additional unwanted content.
StratocumulusCastellanus is distributed via a malicious that contains other dubious apps, for instance, a browser named Chromstera. That installer may include more unwanted programs, such as browser hijackers and adware.
| Name | StratocumulusCastellanus unwanted application |
| Threat Type | Malicious Extension |
| Detection Names | Avast (FileRepMalware [Misc]), Combo Cleaner (Gen:Variant.Application.Agent.183), ESET-NOD32 (Win32/DragonBossSolutions.B Potentially Unwanted), Kaspersky (Not-a-virus:HEUR:AdWare.Win32.WebCompanion.gen), 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 conclusion, StratocumulusCastellanus emerges as a suspicious app with the ability to exert control over browser-related functionalities. Its distribution through a malicious installer adds an extra layer of concern, emphasizing the need for users to be cautious and discerning when interacting with unfamiliar applications.
Examples of similar apps are Pinnipedia, Odobenidae, and AltostratusOpacus.
How did unwanted software install on my computer?
Users often unknowingly install dubious applications when downloading software from untrustworthy sources like unofficial app stores, unreliable websites, or third-party downloaders. Deceptive advertisements or pop-ups can also result in the installation of unwanted software.
Additionally, downloading cracked or pirated versions of legitimate applications from unauthorized sources exposes users to dubious software. Bundling, where unwanted apps are included in installers of other programs, is another common distribution method. In these scenarios, users may inadvertently agree to install unwanted apps by not adjusting settings or leaving checkboxes ticked.
How to avoid installation of unwanted applications?
Obtain software from reliable sources such as official app stores or developers' websites. Exercise caution when encountering pop-ups, advertisements, and similar content on suspicious websites.
When installing programs, carefully review installation prompts and uncheck any pre-selected boxes suggesting the installation of additional, unwanted software. Ensure that operating systems and antivirus software are regularly updated. If your computer is already infected with rogue applications, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate them.
Website distributing the installer containing StratocumulusCastellanus:
StratocumulusCastellanus app information:
StratocumulusCastellanus on Edge browser:
Instant automatic malware removal:
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Quick menu:
- What is StratocumulusCastellanus?
- 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 unwanted applications 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 "StratocumulusCastellanus" and other suspicious extensions, select these entries and click "Remove".
Optional method:
If you continue to have problems with removal of the stratocumuluscastellanus 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 stratocumuluscastellanus 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 stratocumuluscastellanus 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 StratocumulusCastellanus cause?
StratocumulusCastellanus has the potential to compromise user privacy, introduce security vulnerabilities, and make unauthorized changes to the browsing experience, posing a significant threat to online safety.
What does StratocumulusCastellanus do?
StratocumulusCastellanus has the capability to activate the "Managed by your organization" feature, manage themes and extensions, and access or modify data on visited web pages. This multifaceted control raises serious concerns about user privacy and the integrity of their browsing experience.
How do StratocumulusCastellanus developers generate revenue?
Developers of apps like StratocumulusCastellanus generate revenue through diverse methods, including displaying unwanted ads, participating in affiliate marketing schemes, and potentially engaging in fraudulent activities. Additionally, these apps may be implicated in data harvesting, where user information is collected and potentially sold to third parties.
Will Combo Cleaner remove StratocumulusCastellanus?
Combo Cleaner is designed to scan your computer and remove unwanted applications effectively. It is important to note that relying on manual removal may not guarantee complete effectiveness, as some residual files might persist even after uninstallation. Utilizing Combo Cleaner ensures a more comprehensive removal of unwanted applications.
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