mdnsNSP.dll: What It Is & Should I Remove It?

When it comes to computer security, it’s important to stay vigilant and be aware of any potential threats that may compromise the integrity of your system. One file that often raises questions among users is mdnsNSP.dll. In this article, we will delve into what mdnsNSP.dll is, whether you should remove it, and whether it is considered malware or not.

Windows Task Manager

What is mdnsNSP.dll?

mdnsNSP.dll is a dynamic link library (DLL) file that is associated with the Bonjour service, developed by Apple Inc. Bonjour is a networking technology that allows devices to automatically discover and communicate with each other on a local network. It is commonly used for services like printer sharing, file sharing, and device synchronization.

The mdnsNSP.dll file is specifically related to the Bonjour service’s Name Service Provider (NSP) functionality. This functionality enables applications to resolve network service names to IP addresses and vice versa. In simpler terms, it helps devices on a network identify and connect with each other.

Should I Remove mdnsNSP.dll?

Now that we understand what mdnsNSP.dll is, the question arises: should you remove it from your system? The answer depends on your specific needs and usage of the Bonjour service.

If you are not using any applications or services that rely on Bonjour, removing mdnsNSP.dll will not have any adverse effects on your system. However, it is important to note that some applications, especially those developed by Apple or other third-party developers, may require Bonjour to function properly. Removing mdnsNSP.dll in such cases may cause these applications to malfunction or become unusable.

To determine whether you need mdnsNSP.dll, consider the following:

  • If you are unsure whether any of your installed applications rely on Bonjour, you can check the list of installed programs on your computer. Look for any applications that mention Bonjour or are developed by Apple Inc. or other known developers who utilize Bonjour.
  • If you find applications that require Bonjour, it is recommended to keep mdnsNSP.dll on your system to ensure the proper functioning of these applications.
  • If you do not find any applications that require Bonjour, you can safely remove mdnsNSP.dll without any negative consequences.

If you decide to remove mdnsNSP.dll, it is important to follow the proper uninstallation process to avoid any potential issues. You can typically uninstall the Bonjour service through the Control Panel or by using the uninstaller provided by Apple Inc. or the respective application developer.

Is mdnsNSP.dll Malware?

Given the prevalence of malware and the potential risks it poses, it is natural to question whether mdnsNSP.dll is malware. However, mdnsNSP.dll itself is not considered malware. It is a legitimate file associated with the Bonjour service developed by Apple Inc.

That being said, it is important to exercise caution and ensure that the mdnsNSP.dll file on your system is not compromised or replaced by a malicious version. Malware can sometimes disguise itself as legitimate files to evade detection. To mitigate this risk, it is recommended to regularly scan your system with Malwarebytes Free.

Is Your Device Infected? Scan for Malware

If your computer or phone is slow, showing unwanted pop-ups, or acting strangely, malware could be the cause. Running a scan with Malwarebytes Anti-Malware Free is one of the most reliable ways to detect and remove harmful software. The free version can identify and clean common infections such as adware, browser hijackers, trojans, and other unwanted programs.

Malwarebytes works on Windows, Mac, and Android devices. Choose your operating system below and follow the steps to scan your device and remove any malware that might be slowing it down.

Malwarebytes for WindowsMalwarebytes for MacMalwarebytes for Android

Run a Malware Scan with Malwarebytes for Windows

Malwarebytes stands out as one of the leading and widely-used anti-malware solutions for Windows, and for good reason. It effectively eradicates various types of malware that other programs often overlook, all at no cost to you. When it comes to disinfecting an infected device, Malwarebytes has consistently been a free and indispensable tool in the battle against malware. We highly recommend it for maintaining a clean and secure system.

  1. Download Malwarebytes

    Download the latest version of Malwarebytes for Windows using the official link below. Malwarebytes will scan your computer and remove adware, browser hijackers, and other malicious software for free.

    MALWAREBYTES FOR WINDOWS DOWNLOAD LINK

    (The above link will open a new page from where you can download Malwarebytes)
  2.  

    Install Malwarebytes

    After the download is complete, locate the MBSetup file, typically found in your Downloads folder. Double-click on the MBSetup file to begin the installation of Malwarebytes on your computer. If a User Account Control pop-up appears, click “Yes” to continue the Malwarebytes installation.

    MBAM1
  3. Follow the On-Screen Prompts to Install Malwarebytes

    When the Malwarebytes installation begins, the setup wizard will guide you through the process.

    • You’ll first be prompted to choose the type of computer you’re installing the program on—select either “Personal Computer” or “Work Computer” as appropriate, then click on Next.

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    • Malwarebytes will now begin the installation process on your device.

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    • When the Malwarebytes installation is complete, the program will automatically open to the “Welcome to Malwarebytes” screen.

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    • On the final screen, simply click on the Open Malwarebytes option to start the program.

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  4. Enable “Rootkit scanning”.

    Malwarebytes Anti-Malware will now start, and you will see the main screen as shown below. To maximize Malwarebytes’ ability to detect malware and unwanted programs, we need to enable rootkit scanning. Click on the “Settings” gear icon located on the left of the screen to access the general settings section.

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    In the settings menu, enable the “Scan for rootkits” option by clicking the toggle switch until it turns blue.

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    Now that you have enabled rootkit scanning, click on the “Dashboard” button in the left pane to get back to the main screen.

  5. Perform a Scan with Malwarebytes.

    To start a scan, click the Scan button. Malwarebytes will automatically update its antivirus database and begin scanning your computer for malicious programs.

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  6. Wait for the Malwarebytes scan to complete.

    Malwarebytes will now scan your computer for browser hijackers and other malicious programs. This process can take a few minutes, so we suggest you do something else and periodically check the status of the scan to see when it is finished.

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  7. Quarantine detected malware

    Once the Malwarebytes scan is complete, it will display a list of detected malware, adware, and potentially unwanted programs. To effectively remove these threats, click the “Quarantine” button.

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    Malwarebytes will now delete all of the files and registry keys and add them to the program’s quarantine.

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  8. Restart your computer.

    When removing files, Malwarebytes may require a reboot to fully eliminate some threats. If you see a message indicating that a reboot is needed, please allow it. Once your computer has restarted and you are logged back in, you can continue with the remaining steps.

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Once the scan completes, remove all detected threats. Your Windows computer should now be clean and running smoothly again, free of trojans, adware, and other malware.

If your current antivirus allowed this malicious program on your computer, you may want to consider purchasing Malwarebytes Premium to protect against these types of threats in the future.
If you are still having problems with your computer after completing these instructions, then please follow one of the steps:

Run a Malware Scan with Malwarebytes for Mac

Malwarebytes for Mac is an on-demand scanner that can destroy many types of malware that other software tends to miss without costing you absolutely anything. When it comes to cleaning up an infected device, Malwarebytes has always been free, and we recommend it as an essential tool in the fight against malware.

  1. Download Malwarebytes for Mac.

    You can download Malwarebytes for Mac by clicking the link below.

    MALWAREBYTES FOR MAC DOWNLOAD LINK
    (The above link will open a new page from where you can download Malwarebytes for Mac)
  2. Double-click on the Malwarebytes setup file.

    When Malwarebytes has finished downloading, double-click on the setup file to install Malwarebytes on your computer. In most cases, downloaded files are saved to the Downloads folder.

    Double-click on setup file to install Malwarebytes

  3. Follow the on-screen prompts to install Malwarebytes.

    When the Malwarebytes installation begins, you will see the Malwarebytes for Mac Installer which will guide you through the installation process. Click “Continue“, then keep following the prompts to continue with the installation process.

    Click Continue to install Malwarebytes for Mac

    Click again on Continue to install Malwarebytes for Mac for Mac

    Click Install to install Malwarebytes on Mac

    When your Malwarebytes installation completes, the program opens to the Welcome to Malwarebytes screen. Click the “Get started” button.

  4. Select “Personal Computer” or “Work Computer”.

    The Malwarebytes Welcome screen will first ask you what type of computer are you installing this program, click either Personal Computer or Work Computer.
    Select Personal Computer or Work Computer mac

  5. Click on “Scan”.

    To scan your computer with Malwarebytes, click on the “Scan” button. Malwarebytes for Mac will automatically update the antivirus database and start scanning your computer for malware.
    Click on Scan button to start a system scan Mac

  6. Wait for the Malwarebytes scan to complete.

    Malwarebytes will scan your computer for adware, browser hijackers, and other malicious programs. This process can take a few minutes, so we suggest you do something else and periodically check on the status of the scan to see when it is finished.
    Wait for Malwarebytes for Mac to scan for malware

  7. Click on “Quarantine”.

    When the scan has been completed, you will be presented with a screen showing the malware infections that Malwarebytes has detected. To remove the malware that Malwarebytes has found, click on the “Quarantine” button.
    Review the malicious programs and click on Quarantine to remove malware

  8. Restart computer.

    Malwarebytes will now remove all the malicious files that it has found. To complete the malware removal process, Malwarebytes may ask you to restart your computer.
    Malwarebytes For Mac requesting to restart computer

After scanning, delete any detected threats. Your Mac should now be free from adware, unwanted extensions, and other potentially harmful software.

If your current antivirus allowed a malicious program on your computer, you might want to consider purchasing the full-featured version of Malwarebytes Anti-Malware to protect against these types of threats in the future.
If you are still experiencing problems while trying to remove a malicious program from your computer, please ask for help in our Mac Malware Removal Help & Support forum.

Run a Malware Scan with Malwarebytes for Android

Malwarebytes for Android automatically detects and removes dangerous threats like malware and ransomware so you don’t have to worry about your most-used device being compromised. Aggressive detection of adware and potentially unwanted programs keeps your Android phone or tablet running smooth.

  1. Download Malwarebytes for Android.

    You can download Malwarebytes for Android by clicking the link below.

    MALWAREBYTES FOR ANDROID DOWNLOAD LINK
    (The above link will open a new page from where you can download Malwarebytes for Android)
  2. Install Malwarebytes for Android on your phone.

    In the Google Play Store, tap “Install” to install Malwarebytes for Android on your device.

    Tap Install to install Malwarebytes for Android

    When the installation process has finished, tap “Open” to begin using Malwarebytes for Android. You can also open Malwarebytes by tapping on its icon in your phone menu or home screen.
    Malwarebytes for Android - Open App

  3. Follow the on-screen prompts to complete the setup process

    When Malwarebytes will open, you will see the Malwarebytes Setup Wizard which will guide you through a series of permissions and other setup options.
    This is the first of two screens that explain the difference between the Premium and Free versions. Swipe this screen to continue.
    Malwarebytes Setup Screen 1
    Tap on “Got it” to proceed to the next step.
    Malwarebytes Setup Screen 2
    Malwarebytes for Android will now ask for a set of permissions that are required to scan your device and protect it from malware. Tap on “Give permission” to continue.
    Malwarebytes Setup Screen 3
    Tap on “Allow” to permit Malwarebytes to access the files on your phone.
    Malwarebytes Setup Screen 4

  4. Update database and run a scan with Malwarebytes for Android

    You will now be prompted to update the Malwarebytes database and run a full system scan.

    Malwarebytes fix issue

    Click on “Update database” to update the Malwarebytes for Android definitions to the latest version, then click on “Run full scan” to perform a system scan.

    Update database and run Malwarebytes scan on phone

  5. Wait for the Malwarebytes scan to complete.

    Malwarebytes will now start scanning your phone for adware and other malicious apps. This process can take a few minutes, so we suggest you do something else and periodically check on the status of the scan to see when it is finished.
    Malwarebytes scanning Android for Vmalware

  6. Click on “Remove Selected”.

    When the scan has been completed, you will be presented with a screen showing the malware infections that Malwarebytes for Android has detected. To remove the malicious apps that Malwarebytes has found, tap on the “Remove Selected” button.
    Remove malware from your phone

  7. Restart your phone.

    Malwarebytes for Android will now remove all the malicious apps that it has found. To complete the malware removal process, Malwarebytes may ask you to restart your device.


When the scan is finished, remove all detected threats. Your Android phone should now be free of malicious apps, adware, and unwanted browser redirects.

If your current antivirus allowed a malicious app on your phone, you may want to consider purchasing the full-featured version of Malwarebytes to protect against these types of threats in the future.
If you are still having problems with your phone after completing these instructions, then please follow one of the steps:

After cleaning your device, it’s important to protect it from future infections and annoying pop-ups. We recommend installing an ad blocker such as AdGuard. AdGuard blocks malicious ads, prevents phishing attempts, and stops dangerous redirects, helping you stay safe while browsing online.

Summary

In conclusion, mdnsNSP.dll is a DLL file associated with the Bonjour service developed by Apple Inc. It is responsible for the Name Service Provider functionality, allowing devices on a network to discover and communicate with each other. Whether you should remove mdnsNSP.dll depends on your usage of Bonjour-enabled applications. If you do not use any such applications, removing mdnsNSP.dll will not have any adverse effects. However, if you rely on Bonjour-enabled applications, it is recommended to keep mdnsNSP.dll to ensure their proper functioning.

It is important to note that mdnsNSP.dll itself is not malware. However, to ensure the integrity of your system and the mdnsNSP.dll file, it is recommended to regularly scan your system with reputable antivirus software such as Malwarebytes Free. This will help detect and remove any potential malware that may disguise itself as legitimate files.

By staying informed and taking necessary precautions, you can maintain a secure and reliable computing environment.

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Stelian leverages over a decade of cybersecurity expertise to lead malware analysis and removal, uncover scams, and educate people. His experience provides insightful analysis and valuable perspective.