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.

Quick Fix - Scan the PC with Combo Cleaner for Windows

Combo Cleaner is a trusted PC security and optimization tool equipped with a powerful virus and malware detection engine. This program can get rid of hazardous viruses 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.

CC for Windows Installation

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

5. The tool will update the signature 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.

CC for Windows Start Scan

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

Free features of Combo Cleaner for Windows include Disk Cleaner, Big Files finder, Duplicate files finder, and Uninstaller. To use antivirus, privacy scanner, and to delete identified threats, users have to upgrade to a premium version.

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

Step 1 : Start Windows in Safe Mode With Networking

Windows 10 / 11 Guide

1. Click on the Windows logo and select the Power icon when options pop up.
2. Select Restart from the options while pressing the Shift key on the keyboard.
3. Choose an Option window will appear. Select the Troubleshoot button.
4. In next window, please choose the Advanced Option.
5. On the Advanced Option window, click on Startup Settings, and then, click the Restart button to reboot the computer.
6. When Windows boots in Startup Settings, press the function key F5 or number 5 on the keyboard.

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

Windows 8 Guide

1. Click the Windows Start icon in the lower left section of the screen.
2. Open the Search window and type Advanced in the field. It will open General PC Settings.
3. Click on Advanced Startup, and then click on the Restart Now button.
4. Once the computer starts in the Advanced Startup option menu, select Troubleshoot.
5. Next, click on Advanced Options to reveal the next section.
6. Click Startup settings, and then click the Restart button to boot the PC in Startup Settings.
7. Use function key F5 or number key 5 to Enable Safe Mode with Networking.

Step 2 : Run a virus scanner

To remove Trojan.Win32.Hosts2.gen, we suggest that you scan the infected computer with this powerful virus removal tool. It can detect and get rid of Trojans, viruses, malware, and adware from the infected computer. To fully protect the computer against Trojan.Win32.Hosts2.gen or similar attacks, you can activate Sophos to have real-time scanning and complete defense against all forms of threats.

1. Download Sophos Virus Removal Tool from the link below. Save the file on your computer where you can easily access it.

2. Once the download completes, browse the location of the file. Double-click to run the program and begin the install process.

3. On the first window of installation wizard, click Next to continue. Then, it will display the program’s License Agreement. You need to Accept the terms in order to proceed. If Windows prompts for User Account Control, please click Yes to proceed.

Screenshot of Sophos EULA Page

4. On succeeding windows, click Next or Continue to carry on with the installation. After completing the installation process, Launch Sophos Virus Removal Tool.

5. An internet connection is required when running this scanner in order to download important updates. Make sure that everything is up-to-date to effectively remove viruses like Trojan.Win32.Hosts2.gen.

6. Click the Start Scanning button to  carry out the Scan. This will check the system for the presence of malicious objects, malware, and viruses. The tool reveals items that were found linked to Trojan.Win32.Hosts2.gen and other suspicious entities. Be sure to remove all identified threats.

Screenshot of Sophos Virus Scan

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.

Step 3 : 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 8 and 10/11 users, please run Windows Security. Users of Windows Vista and older versions can utilize Microsoft Security Essentials to remove the Trojan.Win32.Hosts2.gen virus.

Windows 8 / 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 8 or Windows 10/11 systems. Follow these procedures to scan your computer with the tool:

1. Tap or click the Search charm, search for Windows Security, and then open the application.

Image of Windows Security Search

2. On the Home tab, click Virus and threat protection from the sidebar.

3. On the main window, click on Scan Options. Then, click on Full Scan button.

Image of Scan Options

4. 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.

5. 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.

How to protect the computer from Trojan.Win32.Hosts2.gen?

The initial defense that comes to mind for any computer user is to install an anti-virus or anti-malware program. This move is sensible and probably the most practical way to protect the computer against a Trojan.Win32.Hosts2.gen attack. Hence, keep in mind that having security software does not guarantee full protection. The majority of the prevention still lies in being cautious of users, and therefore, we are providing the following information as guidelines to protect the computer from virus infection.

Avoid Malicious Websites

There are enormous numbers of websites that were made for the primary purpose of spreading Trojan.Win32.Hosts2.gen. Normally, these sites are involved in integrating malicious pop-up and browser hijacker, that will eventually cause further virus infections. Avoid such websites.

Ignore and Delete Phishing Emails

The mass-mailing of computer viruses gives the attackers the luxury of spreading their malicious code in just one send-off. This will arrive in the inbox as an email that appears to be from a legitimate organization. So, if you receive an unexpected email with a link or an attached file, better delete it immediately.

Do Not Click a Suspicious Link

Links from social media, forums, and blog sites are sometimes being utilized by attackers to drive web users to a malicious page that contains malicious code. Therefore, do not just click on any link, especially if it looks suspicious. Accidental access to the destination site may lead to a Trojan.Win32.Hosts2.gen infection.

Be Careful When Downloading Files

Cracked software, serial key generators, and several freeware are seen as another method that spreads the Trojan.Win32.Hosts2.gen virus. Avoid acquiring these types of applications, and if there is a need to download freeware or shareware, be sure to obtain it from the official website or trusted providers.

About the author

Leave a Comment

Your email address will not be published. Required fields are marked *