How to remove StratusNebulosus malicious extension from your browser
Written by Tomas Meskauskas on
What kind of application is StratusNebulosus?
Our team discovered the StratusNebulosus browser extension during the analysis of a malicious installer obtained from an unreliable website. We found that StratusNebulosus can perform various actions once added. For instance, it can enable the "Managed by your organization" feature in Chrome browsers. Users should avoid having StratusNebulosus added to their browsers.
StratusNebulosus in detail
StratusNebulosus is an application with extensive capabilities, allowing it to access and manipulate data across all websites. This level of access can be concerning for users who value their data privacy, as it means the app can potentially read and modify information on websites they visit.
Furthermore, StratusNebulosus has the ability to manage apps, extensions, and themes, giving it control over various aspects of the browsing experience. One particularly noteworthy feature of StratusNebulosus is its capacity to enable the "Managed by your organization" setting in Google Chrome.
This setting typically indicates that an organization or entity has control over browser configurations, potentially leading to restricted user control and privacy concerns. Furthermore, during our investigation, we found that the installer that distributes StratusNebulosus also includes additional unwanted software components, such as the Chromstera web browser.
It is crucial to highlight that applications similar to StratusNebulosus can often come bundled with adware, browser hijackers, and various other potentially harmful programs. In certain instances, installers that distribute these applications may go as far as hiding more severe threats, such as ransomware, Trojans, cryptocurrency miners, and similar types of malware.
| Name | StratusNebulosus unwanted application |
| Threat Type | Malicious extension, Unwanted application |
| Detection Names | Avast (Win32:Evo-gen [Trj]), AVG (Win32:Evo-gen [Trj]), Jiangmin (Trojan.Agent.eqdq), Microsoft (Trojan:Win32/Wacatac.B!ml), Rising (Trojan.Generic@AI.100 (RDML:579wwd1es5YQ1dPcOYOH3g)), Full List (VirusTotal) |
| Symptoms | Your computer becomes slower than normal, you see unwanted pop-up ads, you are redirected to dubious websites. |
| Distribution methods | Dubious pages, 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, StratusNebulosus is a browser extension that, while claiming certain functionalities, raises significant concerns regarding user privacy and system security. It is essential for users to exercise caution when encountering applications like StratusNebulosus, as they may not only compromise data privacy but also introduce more serious threats.
Examples of apps similar to StratusNebulosus are ParaceratheriumBugtiense, SempervivumTectorum, and ParasaurolophusWalkeri.
How did StratusNebulosus install on my computer?
Users may inadvertently install browser extensions like StratusNebulosus through various methods, including downloading from untrusted sources, installing bundled extensions with free software, falling for deceptive advertisements, encountering social engineering tactics, or running malicious installers.
StratusNebulosus is typically disseminated via a malicious installer frequently discovered on unreliable websites. When users follow the instructions presented by this installer, it leads to the installation of both StratusNebulosus and Chromstera.
How to avoid installation of unwanted applications?
Only download software and browser extensions from official websites or reputable app stores. Avoid third-party sources, as they often host potentially harmful or compromised versions. Carefully read through each step of the installation process. Uncheck any boxes or change settings that offer to install additional software or browser extensions unless you are certain of their legitimacy.
Avoid engaging with pop-up ads and other elements while visiting suspicious pages, routinely evaluate the software on your computer, and uninstall any questionable programs (including browser extensions). If your computer is already infected with rogue applications, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate them.
Shady page distributing the StratusNebulosus application (its installer):
StratusNebulosus application details:
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 StratusNebulosus?
- STEP 1. Uninstall unwanted applications using Control Panel.
- STEP 2. Remove rogue plug-ins from Google Chrome.
- STEP 3. Remove rogue 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 "StratusNebulosus" and other suspicious extensions, select these entries and click "Remove".
Optional method:
If you continue to have problems with removal of the stratusnebulosus 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 stratusnebulosus 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 stratusnebulosus 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 StratusNebulosus cause?
StratusNebulosus can potentially cause several harms to a user's computer and browsing experience. It can compromise data privacy, introduce unwanted advertisements and browser settings modifications, and even lead to performance issues.
What does StratusNebulosus do?
StratusNebulosus can read and modify data on all websites, manage browser settings, and enable the "Managed by your organization" feature in Google Chrome.
How do StratusNebulosus developers generate revenue?
StratusNebulosus developers can earn money in multiple ways. They may gather and profit from user data through targeted ads or data sales to third parties. Furthermore, they might explore income sources such as affiliate marketing or advertiser partnerships, where they receive commissions or fees for promoting products or services through the extension's features or ads.
Will Combo Cleaner remove StratusNebulosus?
Combo Cleaner will scan your computer to get rid of StratusNebulosus and other unwanted apps. Keep in mind that manual removal is not always perfect; some leftover files may remain in your system, even after removing the main software, allowing some parts to keep working.
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