The WinstarNssmMiner virus is a stealth Trojan that can infect computer networks and infiltrate both end users and enterprise targets. It takes advantage of the available computer resources in order to generate income for the operators.
|Type||Trojan Horse/CryptoCurrency Miner|
|Short Description||Silently infects your computer after which begins to mine for cryptocurrencies via a fake executable process..|
|Symptoms||A very high resource usage and unusual operating system interaction.|
|Distribution Method||Malicious web links, Malicious Files, Malicious E-Mails|
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|User Experience||Join Our Forum to Discuss WinstarNssmMiner.|
WinstarNssmMiner – How Does It Infect
The WinstarNssmMiner miner is deployed using the traditional distribution tactics for this type. A common way is to integrate the miner code in payloads. Two popular examples are the following:
- Infected Documents — The WinstarNssmMiner miner code can be embedded in files such as text documents, spreadsheets or presentations. Once the users open the files they will be presented with a notification prompt that asks the victims to enable the built-in macros (scripts). When this is done the virus code will be downloaded from a remote server and loaded onto the target system.
- Software Installers — The code can be embedded in a similar way in application installers of popular software. The hackers typically choose well-known products such as productivity solutions, creativity suites, system utilities and etc.
These payloads can be uploaded to fake download portals that may be designed to look like legitimate web services. They are done by setting up similar domain names and using stolen graphics and text, as well as other elements. Typically they feature malicious scripts that can cause redirects, pop-ups, banners and other related code. Be aware that file sharing networks such as BitTorrent are often employed as well.
The WinstarNssmMiner miner can be embedded in browser hijackers as well. They represent dangerous browser plugins that are designed to redirect the victims to a hacker-controlled site, extract their sensitive data and deliver virus threats like this one. They are usually made compatible with the most popular applications: Mozilla Firefox, Google Chrome, Internet Explorer, Safari, Opera and Microsoft Edge. The most popular delivery method is to advertise them in the relevant plugin repositories of the browsers by using elaborate descriptions, fake user reviews and credentials.
WinstarNssmMiner – More Information and Analysis
The WinstarNssmMiner miner is described as an advanced hybrid threat as it features both miner and Trojan code. As it uses a modular engine it can be customized according to the attack campaign. If it follows the common behavior tactics associated with similar threats it can first scan the victim for any applications that can interfere with the virus’s execution. This security bypass technique is usually aimed against virtual machine hosts, anti-virus solutions and sandbox environments. In certain cases the engine can be programmed into deleting itself if the bypass is not succesful.
Once the infection is allowed access to the infected host it can induce Windows Registry changes. When strings associated with any user-installed application are modified certain services and functions can stop working. When the changes affect the operating system the victims may experience overall performance issues.
As it is classified as a Cryptojacking virus it monitors the web browser activity and looks our for certain strings related to cryptocurrency operations. The main goal is to change the recipients address when digital currency transfers are ordered. This is done by looking out for strings such as Bitcoin, Zcash, Monero, Ethereum, Bitcoin Cash and others.
The malware engine uses a corrupted version of svchost.exe which hooks to the operating system processes. It is responsible for starting a Monero Miner which takes advantage of the available system resources in order to generate income for the hacker operators.
Remove WinstarNssmMiner Effectively from Windows
In order to fully get rid of this cryptocurrency miner Trojan, we advise you to follow the removal instructions underneath this article. They are made so that they help you to isolate and then delete the WinstarNssmMiner Trojan either manually or automatically. If manual removal represents difficulty for you, experts always advise to perform the removal automatically by running an anti-malware scan via specific software on your PC. Such anti-malware program aims to make sure that the WinstarNssmMiner is fully gone and your Windows OS stays safe against any future malware infections.
- Guide 1: How to Remove WinstarNssmMiner from Windows.
- Guide 2: Get rid of WinstarNssmMiner on Mac OS X.
- Guide 3: Remove WinstarNssmMiner in Google Chrome.
- Guide 4: Erase WinstarNssmMiner from Mozilla Firefox.
- Guide 5: Uninstall WinstarNssmMiner from Microsoft Edge.
- Guide 6: Remove WinstarNssmMiner from Safari.
- Guide 7: Eliminate WinstarNssmMiner from Internet Explorer.
- Guide 8: Disable WinstarNssmMiner Push Notifications in Your Browsers.
How to Remove WinstarNssmMiner from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove WinstarNssmMiner
Step 2: Uninstall WinstarNssmMiner and related software from Windows
Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it.
Step 3: Clean any registries, created by WinstarNssmMiner on your computer.
The usually targeted registries of Windows machines are the following:
You can access them by opening the Windows registry editor and deleting any values, created by WinstarNssmMiner there. This can happen by following the steps underneath:
Get rid of WinstarNssmMiner from Mac OS X.
Step 1: Uninstall WinstarNssmMiner and remove related files and objects
1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
- Go to Finder.
- In the search bar type the name of the app that you want to remove.
- Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
- If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.
In case you cannot remove WinstarNssmMiner via Step 1 above:
In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:
You can repeat the same procedure with the following other Library directories:
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 2: Scan for and remove WinstarNssmMiner files from your Mac
When you are facing problems on your Mac as a result of unwanted scripts and programs such as WinstarNssmMiner, the recommended way of eliminating the threat is by using an anti-malware program. SpyHunter for Mac offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.
Remove WinstarNssmMiner from Google Chrome.
Step 1: Start Google Chrome and open the drop menu
Step 2: Move the cursor over "Tools" and then from the extended menu choose "Extensions"
Step 3: From the opened "Extensions" menu locate the unwanted extension and click on its "Remove" button.
Step 4: After the extension is removed, restart Google Chrome by closing it from the red "X" button at the top right corner and start it again.
Erase WinstarNssmMiner from Mozilla Firefox.
Step 1: Start Mozilla Firefox. Open the menu window
Step 2: Select the "Add-ons" icon from the menu.
Step 3: Select the unwanted extension and click "Remove"
Step 4: After the extension is removed, restart Mozilla Firefox by closing it from the red "X" button at the top right corner and start it again.
Uninstall WinstarNssmMiner from Microsoft Edge.
Step 1: Start Edge browser.
Step 2: Open the drop menu by clicking on the icon at the top right corner.
Step 3: From the drop menu select "Extensions".
Step 4: Choose the suspected malicious extension you want to remove and then click on the gear icon.
Step 5: Remove the malicious extension by scrolling down and then clicking on Uninstall.
Remove WinstarNssmMiner from Safari.
Step 1: Start the Safari app.
Step 2: After hovering your mouse cursor to the top of the screen, click on the Safari text to open its drop down menu.
Step 3: From the menu, click on "Preferences".
Step 4: After that, select the 'Extensions' Tab.
Step 5: Click once on the extension you want to remove.
Step 6: Click 'Uninstall'.
A pop-up window will appear asking for confirmation to uninstall the extension. Select 'Uninstall' again, and the WinstarNssmMiner will be removed.
Eliminate WinstarNssmMiner from Internet Explorer.
Step 1: Start Internet Explorer.
Step 2: Click on the gear icon labeled 'Tools' to open the drop menu and select 'Manage Add-ons'
Step 3: In the 'Manage Add-ons' window.
Step 4: Select the extension you want to remove and then click 'Disable'. A pop-up window will appear to inform you that you are about to disable the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and click 'Disable'.
Step 5: After the unwanted extension has been removed, restart Internet Explorer by closing it from the red 'X' button located at the top right corner and start it again.
Remove Push Notifications caused by WinstarNssmMiner from Your Browsers.
Turn Off Push Notifications from Google Chrome
To disable any Push Notices from Google Chrome browser, please follow the steps below:
Step 1: Go to Settings in Chrome.
Step 2: In Settings, select “Advanced Settings”:
Step 3: Click “Content Settings”:
Step 4: Open “Notifications”:
Step 5: Click the three dots and choose Block, Edit or Remove options:
Remove Push Notifications on Firefox
Step 1: Go to Firefox Options.
Step 2: Go to “Settings”, type “notifications” in the search bar and click "Settings":
Step 3: Click “Remove” on any site you wish notifications gone and click “Save Changes”
Stop Push Notifications on Opera
Step 1: In Opera, press ALT+P to go to Settings
Step 2: In Setting search, type “Content” to go to Content Settings.
Step 3: Open Notifications:
Step 4: Do the same as you did with Google Chrome (explained below):
Eliminate Push Notifications on Safari
Step 1: Open Safari Preferences.
Step 2: Choose the domain from where you like push pop-ups gone and change to "Deny" from "Allow".