TrojanDownloader:Win32/CoinMiner is a detection name given by Microsoft Security Software to a program or file that was verified to cause additional threats on the computer. Normally, this type of threat is built to install potentially unwanted programs or download more malware onto the computer. Typically, TrojanDownloader:Win32/CoinMiner causes medium to severe disturbance on the system. It makes changes to certain settings without asking for the user’s approval.

How does it infect the computer?

TrojanDownloader:Win32/CoinMiner or any variants of this threat are normally spread through malicious programs. Compromised web sites running drive-by-download scripts also lead to infection and serious damage to the computer.

Other means to deploy TrojanDownloader:Win32/CoinMiner are through spam email campaigns, malicious links from social media sites, and file-sharing networks. Be aware of key generators and cracked programs, as they were repacked to include this threat in the installation process.

How does this malware operate?

If TrojanDownloader:Win32/CoinMiner was able to invade your computer, anticipate a sudden cutdown in the speed of both the machine and the Internet connection. The threat constantly connects to a predefined server to further download malicious files. Changes will also be carried out on configuration settings, the Internet browser, and security setup. TrojanDownloader:Win32/CoinMiner is a clever piece of malware that can end processes that belong to anti-virus and firewall programs.

TrojanDownloader:Win32/CoinMinern operates by utilizing the computational resources of an infected computer to mine cryptocurrency without the user’s knowledge or consent. Once the Trojan infiltrates the system, it typically remains stealthy, avoiding detection by security software. The primary goal of TrojanDownloader:Win32/CoinMiner is to harness the processing power of the infected computer to perform the complex mathematical calculations required for cryptocurrency mining.

TrojanDownloader:Win32/CoinMiner may disguise itself by integrating into legitimate system processes or files, making it challenging to identify. As it runs in the background, it connects to a remote server controlled by the attacker, receiving instructions and sending the mined cryptocurrency back to the attacker’s wallet. This unauthorized usage of the infected computer’s resources can lead to increased CPU and GPU usage, slowing down the system and potentially causing hardware damage over time.


TrojanDownloader:Win32/CoinMiner produces a bunch of annoyances when running on the system. This threat affects computer operation, Internet browsing, and even most of the programs that are installed. Some of the Windows tools may also stop responding, and this includes the registry editor, task manager, and file management.

Versions of TrojanDownloader:Win32/CoinMiner
Version Name Alert Level Date Added
TrojanDownloader:Win32/CoinMiner.O Severe Dec. 14, 2021
TrojanDownloader:Win32/CoinMiner.I Severe July 25, 2014

For more help

Several threats have been made public by the TrojanDownloader:Win32/CoinMiner threat family. Please browse the Trojan category to see relevant threats and efficient removal methods.

How to remove TrojanDownloader:Win32/CoinMiner.I?

To totally remove TrojanDownloader:Win32/CoinMiner.I 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 TrojanDownloader:Win32/CoinMiner.I 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 TrojanDownloader:Win32/CoinMiner.I, 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 TrojanDownloader:Win32/CoinMiner.I 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 TrojanDownloader:Win32/CoinMiner.I. 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 TrojanDownloader:Win32/CoinMiner.I 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 TrojanDownloader:Win32/CoinMiner.I.

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 TrojanDownloader:Win32/CoinMiner.I 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 TrojanDownloader:Win32/CoinMiner.I.

11. You may now close Sophos Home. The computer is now free from TrojanDownloader:Win32/CoinMiner.I, as well as associated malware and viruses.

After executing the above instructions, TrojanDownloader:Win32/CoinMiner.I 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 TrojanDownloader:Win32/CoinMiner.I. 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 TrojanDownloader:Win32/CoinMiner.I, 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 TrojanDownloader:Win32/CoinMiner.I. The process may take a while to complete.

7. After the scan, Delete/Quarantine identified threats, whether they were relevant to TrojanDownloader:Win32/CoinMiner.I 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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