The harmful action of Trojan.Win32.Hosts2.gen that infects the Windows Hosts file is to manipulate the DNS (Domain Name Service) resolution on the compromised machine. On a computer, the Hosts file is a local text file that associates hostnames with IP addresses. The operating system looks into the Hosts file before contacting outside DNS servers when a user attempts to visit a website. The system connects to the relevant website using the IP address linked to an item if it is discovered in the Hosts file.

The aim of Trojan.Win32.Hosts2.gen for infecting the computer may vary, but in most instances, it aims to redirect the web user to malicious websites. In addition, it includes a code that will prevent the infected computer from accessing security websites.

Illustration of Trojan.Win32.Hosts2.gen

How does it infect the computer?

Trojan.Win32.Hosts2.gen often infects Windows computers through deceptive methods, such as email attachments, malicious links, or infected software downloads. Users may unknowingly execute the Trojan by opening a seemingly harmless file or clicking on a malicious link.

Once executed, Trojan.Win32.Hosts2.gen exploits vulnerabilities in the operating system or software to gain unauthorized access and establish a foothold on the system. In some cases, Trojan.Win32.Hosts2.gen may also disguise itself as legitimate programs or files to evade detection by security software.

Once operational inside the Windows system, Trojan.Win32.Hosts2.gen typically aims to conceal its presence, often by disabling antivirus programs or employing rootkit techniques. It may then download additional malicious payloads, providing attackers with remote access to the compromised system. Trojan.Win32.Hosts2.gen can also spread through network vulnerabilities, infecting other connected devices

How does this malware operate?

Trojan.Win32.Hosts2.gen infecting the Windows Hosts file is a malicious activity aimed at manipulating the Domain Name System (DNS) resolution on the infected system. The Hosts file is a local text file on a computer that maps hostnames to IP addresses. When a user tries to access a website, the operating system checks the Hosts file first before querying external DNS servers. If an entry is found in the Hosts file, the system uses the associated IP address to connect to the corresponding website.

When a Trojan infects the Hosts file, it typically adds or modifies entries to redirect certain domain names to malicious IP addresses. This can have several nefarious purposes:

  • Phishing: Trojan.Win32.Hosts2.gen may redirect users attempting to visit legitimate websites, such as banking or email services, to fake or malicious sites designed to steal login credentials or personal information.
  • Advertisement Fraud: By redirecting popular advertising domains to malicious servers, Trojan.Win32.Hosts2.gen can generate fraudulent clicks on ads, leading to financial gains for the attackers.
  • Denial of Service (DoS) Attack: The Trojan may redirect the traffic of certain websites to overload their servers, causing a denial of service for legitimate users.
  • Man-in-the-Middle Attacks: By redirecting traffic through malicious servers, the Trojan can intercept and manipulate communication between the user and websites, potentially leading to data theft or other attacks.

In summary, the infection of the Windows Hosts file by Trojan.Win32.Hosts2.gen is a tactic used by attackers to control and manipulate the internet traffic on an infected system for various malicious purposes. Regularly updating security software, practicing safe browsing habits, and maintaining a clean system are essential steps to prevent and lessen such threats.


When a computer is infected with Trojan.Win32.Hosts2.gen, users may experience unusual internet browsing behavior as one of the primary symptoms. The Trojan typically modifies the Hosts file to redirect certain website domain names to malicious IP addresses. Consequently, internet users may be redirected to fake or phishing websites when attempting to access legitimate services, leading to potential credential theft and other security risks.

Another noticeable symptom is the unexpected appearance of persistent pop-up advertisements or warnings on websites that were previously ad-free. These pop-ups may be triggered by Trojan.Win32.Hosts2.gen’s manipulation of the Hosts file to redirect ad-related domain names. Additionally, users might encounter difficulties accessing specific websites, as Trojan.Win32.Hosts2.gen may block or reroute traffic to disrupt normal internet usage..

For more help

Trojan.Win32.Hosts2.gen belongs to a group of threats in which several variants were released into the wild. To view other associated threats and removal procedures, please explore the Trojan category.

How to remove Trojan.Win32.Hosts2.gen?

To totally remove Trojan.Win32.Hosts2.gen from the computer and get rid of relevant viruses and trojans, please execute the procedures as stated on this page. Make sure that you have completely scanned the system with the suggested malware removal tools and virus scanners.

Step 1 : Scan the PC with Combo Cleaner for Windows

Combo Cleaner is a trusted computer security and optimization tool equipped with a powerful virus and malware detection engine. This program can get rid of computer virus like Trojan.Win32.Hosts2.gen through this procedure.

1. Download the application from the following page:

2. Save the file to your preferred location.

3. Double-click the downloaded file CCSetup.exe and install with the default settings.

4. At the end of the setup process, click Finish to run Combo Cleaner.

5. The tool will update the database file; please wait for this process to complete.

6. To begin checking for threats like Trojan.Win32.Hosts2.gen, click on the Start Scan button. Wait for this scan to finish.

Screenshot of Combo Cleaner PC

7. At the end of the scan process, click on Remove all threats to delete Trojan.Win32.Hosts2.gen malware, including all malicious objects from the computer.

To fully optimize the features of antivirus and privacy scanners, users may have to upgrade to the premium version.

Please continue with the succeeding removal procedures if you are comfortable manually getting rid of the computer virus and malicious items linked to it.

Step 2 : Start Windows in Safe Mode With Networking

The method of running Windows in Safe Mode before running a virus scan is effective in getting rid of Trojan.Win32.Hosts2.gen. This process can prevent most viruses and malware from loading, making it easier to detect and remove them.

1. On the Windows Search bar, please type msconfig.

Screenshot of Win 11 Search

2. Select and open System Configutation on the list of found results.

3. Once you are in the System Configuration window, go to the Boot tab.

Screenshot of Msconfig Win 11

4. Under the Boot Options area, please check Safe Boot so that it starts in Safe Mode after restarting.

5. Next, select Network. This will allow Windows to boot in Safe Mode with Networking.

6. Lastly, click on Apply and OK to save the changes.

7. Please restart Windows.

Do not forget to restore the normal boot process of Windows after running the virus scan. Simply repeat the method above, and this time, uncheck the Safe Boot option to run Windows normally.

Step 3 : Run Sophos Home Virus Scanner

To remove Trojan.Win32.Hosts2.gen automatically, scanning the computer with this powerful virus and malware removal tool is recommended. This scanner does not just uncover known threats like viruses or malware; it is also effective in discovering harmful files associated to Trojan.Win32.Hosts2.gen.

1. Please click on the link below to download the program.

2. After downloading, locate the file SophosInstall.exe in the Downloads folder.

3. Install by double-clicking on the file.

4. If it prompts "Do you want to allow this app to make changes on your device?" please click Yes.

5. Next, it will display the Terms and Conditions page. Click the Install button to begin.

Screenshot of Terms by Sophos Home

6. Run the installation with the default settings. Please note that an internet connection is required in order to download important updates.

7. After finishing the installation, you must login to the dashboard. If you already have a Sophos account, please login. Otherwise, please enter your details and click on the Create Account button.

8. Once you are in the Sophos Home console, click the Scan button to start checking the computer for Trojan.Win32.Hosts2.gen components.

Screenshot of Sophos Home

9. Scanning may take a while; please wait for this process to finish.

10. After scanning the computer, Sophos Home will start cleaning or deleting files infected with Trojan.Win32.Hosts2.gen.

11. You may now close Sophos Home. The computer is now free from Trojan.Win32.Hosts2.gen, as well as associated malware and viruses.

After executing the above instructions, Trojan.Win32.Hosts2.gen should have been completely removed from the computer. If there are still signs of infection or the computer is displaying unusual behaviors, please continue with the remaining procedures.

Another alternative for Windows 10/11 users is to scan the computer with Microsoft Defender Offline. This will run a virus scan in the recovery environment.

Step 4 : Double Check with Windows Security Apps

Microsoft Windows has a built-in security application that you can use to double-check if your computer is still infected with Trojan.Win32.Hosts2.gen. For Windows 10/11 users, please run Windows Security.

Windows 10 / 11 Instructions:

Windows Security is a free tool that was built to help you remove Trojan.Win32.Hosts2.gen, viruses, and other malicious items from Windows 10/11 systems. Follow these procedures to scan your computer with the tool:

1. Tap or click the Search charm and search for Windows Security

2. Click Open to run the program.

Screenshot of Win 11 Search

3. On the Dashboard, click Virus and threat protection from the sidebar.

Screenshot of Win 11 Virus Protection

4. On the right panel, click on Scan Options to see different levels of checking the computer.

5. Next, please select Full Scan button.

Screenshot of Full Scan Win 11

6. Lastly, click on the Scan now button to start scanning for the presence of Trojan.Win32.Hosts2.gen. The process may take a while to complete.

7. After the scan, Delete/Quarantine identified threats, whether they were relevant to Trojan.Win32.Hosts2.gen or not. You may now restart Windows to complete the virus removal process.

For Windows 8.1 and Windows 7, you can scan the computer for free with the Microsoft Malicious Software Removal Tool (MSRT 64-Bit). It is a stand-alone virus scanner tool that targets prevalent malware groups.

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