TCP/IP NetBIOS Helper Process: What You Need To Know

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Written by: Stelian Pilici

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When you open the Task Manager on your Windows computer, you may come across a process called “TCP/IP NetBIOS Helper” running in the background. This process might raise some questions and concerns, especially if you are not familiar with its purpose and functionality. In this article, we will explore the TCP/IP NetBIOS Helper process, why it is running in Task Manager, and its significance in the Windows operating system.

Windows Task Manager

Understanding TCP/IP NetBIOS Helper Process

The TCP/IP NetBIOS Helper process, also known as lmhosts.exe, is a Windows service that provides support for NetBIOS over TCP/IP (Transmission Control Protocol/Internet Protocol). NetBIOS (Network Basic Input/Output System) is a programming interface that allows applications on different computers to communicate over a local area network (LAN).

The NetBIOS protocol was widely used in earlier versions of Windows for file and printer sharing, as well as for other network-related tasks. However, with the introduction of newer networking technologies, such as TCP/IP, the importance of NetBIOS has diminished. Nevertheless, some legacy applications and network configurations still rely on NetBIOS for communication.

Why Is TCP/IP NetBIOS Helper Running?

The TCP/IP NetBIOS Helper process is running in Task Manager because it provides essential support for NetBIOS over TCP/IP. Even though NetBIOS is not as prevalent as it once was, certain network configurations and applications still require its functionality. By running the TCP/IP NetBIOS Helper process, Windows ensures that these legacy components can continue to function properly.

It is worth noting that the TCP/IP NetBIOS Helper process is a legitimate Windows service and is not inherently harmful or malicious. However, like any other process running on your computer, it is essential to ensure that it is not being exploited by malware or viruses.

Potential Risks and Malware Exploitation

While the TCP/IP NetBIOS Helper process itself is not a security threat, it can be targeted by malware or used as a disguise for malicious activities. Cybercriminals may attempt to exploit the process to gain unauthorized access to your system, spread malware, or launch other attacks.

To protect your computer from potential risks, it is crucial to keep your operating system and security software up to date. Regularly scanning your system for viruses and malware is also recommended. One reliable and effective tool for scanning and removing malware is Malwarebytes Free.

How to Verify the Legitimacy of TCP/IP NetBIOS Helper

If you want to ensure that the TCP/IP NetBIOS Helper process running on your computer is legitimate and not a malicious imposter, you can follow these steps:

  1. Open the Task Manager by pressing Ctrl + Shift + Esc or right-clicking on the taskbar and selecting “Task Manager.”
  2. Click on the “Processes” or “Details” tab, depending on your Windows version.
  3. Locate the “TCP/IP NetBIOS Helper” or “lmhosts.exe” process in the list.
  4. Right-click on the process and select “Properties.”
  5. In the Properties window, navigate to the “Digital Signatures” tab.
  6. Verify that the digital signature is from Microsoft Corporation or a trusted entity.

If the digital signature is not present or is from an untrusted source, it is advisable to run a thorough scan with a reliable antivirus or anti-malware software, such as Malwarebytes Free.

Conclusion

The TCP/IP NetBIOS Helper process, also known as lmhosts.exe, is a legitimate Windows service that provides support for NetBIOS over TCP/IP. While NetBIOS is not as widely used as it once was, certain legacy applications and network configurations still rely on its functionality. The TCP/IP NetBIOS Helper process ensures that these components can continue to function properly.

However, it is essential to remain vigilant and ensure that the TCP/IP NetBIOS Helper process is not being exploited by malware or used for malicious activities. Keeping your operating system and security software up to date, as well as regularly scanning for viruses and malware, can help protect your computer from potential risks.

If you suspect any malicious activity or are unsure about the legitimacy of the TCP/IP NetBIOS Helper process running on your computer, it is recommended to seek assistance from a professional or use reliable antivirus or anti-malware software, such as Malwarebytes Free.

How to Stay Safe Online

Here are 10 basic security tips to help you avoid malware and protect your device:

  1. Use a good antivirus and keep it up-to-date.

    Shield Guide

    It's essential to use a good quality antivirus and keep it up-to-date to stay ahead of the latest cyber threats. We are huge fans of Malwarebytes Premium and use it on all of our devices, including Windows and Mac computers as well as our mobile devices. Malwarebytes sits beside your traditional antivirus, filling in any gaps in its defenses, and providing extra protection against sneakier security threats.

  2. Keep software and operating systems up-to-date.

    updates-guide

    Keep your operating system and apps up to date. Whenever an update is released for your device, download and install it right away. These updates often include security fixes, vulnerability patches, and other necessary maintenance.

  3. Be careful when installing programs and apps.

    install guide

    Pay close attention to installation screens and license agreements when installing software. Custom or advanced installation options will often disclose any third-party software that is also being installed. Take great care in every stage of the process and make sure you know what it is you're agreeing to before you click "Next."

  4. Install an ad blocker.

    Ad Blocker

    Use a browser-based content blocker, like AdGuard. Content blockers help stop malicious ads, Trojans, phishing, and other undesirable content that an antivirus product alone may not stop.

  5. Be careful what you download.

    Trojan Horse

    A top goal of cybercriminals is to trick you into downloading malware—programs or apps that carry malware or try to steal information. This malware can be disguised as an app: anything from a popular game to something that checks traffic or the weather.

  6. Be alert for people trying to trick you.

    warning sign

    Whether it's your email, phone, messenger, or other applications, always be alert and on guard for someone trying to trick you into clicking on links or replying to messages. Remember that it's easy to spoof phone numbers, so a familiar name or number doesn't make messages more trustworthy.

  7. Back up your data.

    backup sign

    Back up your data frequently and check that your backup data can be restored. You can do this manually on an external HDD/USB stick, or automatically using backup software. This is also the best way to counter ransomware. Never connect the backup drive to a computer if you suspect that the computer is infected with malware.

  8. Choose strong passwords.

    lock sign

    Use strong and unique passwords for each of your accounts. Avoid using personal information or easily guessable words in your passwords. Enable two-factor authentication (2FA) on your accounts whenever possible.

  9. Be careful where you click.

    cursor sign

    Be cautious when clicking on links or downloading attachments from unknown sources. These could potentially contain malware or phishing scams.

  10. Don't use pirated software.

    Shady Guide

    Avoid using Peer-to-Peer (P2P) file-sharing programs, keygens, cracks, and other pirated software that can often compromise your data, privacy, or both.

To avoid potential dangers on the internet, it's important to follow these 10 basic safety rules. By doing so, you can protect yourself from many of the unpleasant surprises that can arise when using the web.

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