Trojan:Win32/Wacatac.C!ml is a computer virus infection that can permit remote attacker to carry out various malicious action on the infected Windows system. With its backdoor resources, makers of Trojan:Win32/Wacatac.C!ml may control the infected computer and do unnecessary actions that causes potential risks to user’s privacy and security.

Threat Behavior

Once executed on the Windows system, Trojan:Win32/Wacatac.C!ml is able to integrate several malicious files on various system folders. Then, it modify Windows registry to add an entry that initiate the virus code during start-up. Being a memory resident, computer users may have difficulty in removing Trojan:Win32/Wacatac.C!ml unless that they started Windows in Safe Mode.


Trojan Downloader is utilized by attackers to deploy Trojan:Win32/Wacatac.C!ml. Its lightweight and discrete operation is taken advantage by hackers to sneak onto the target computer without being detected by anti-virus applications.

On some instances, users may directly download and execute Trojan:Win32/Wacatac.C!ml via malicious files downloaded from suspicious sources like file-sharing networks, cracked programs, malicious websites, and spam email messages.


Similar to nearly all Trojan infection, this variant aims to dominate the computer and allows the remote attacker to control it. Hence, Trojan:Win32/Wacatac.C!ml may have additional function that are not present on every Trojans.

How to remove Trojan:Win32/Wacatac.C!ml?

To totally remove Trojan:Win32/Wacatac.C!ml from the computer and get rid of relevant virus and trojan, please execute the procedures as stated on this page. Make sure that you have completely scan the system with suggested malware removal tools and virus scanners.

Remove Trojan:Win32/Wacatac.C!ml Instantly

To instantly remove Trojan:Win32/Wacatac.C!ml, we suggest that you scan the infected computer with this powerful anti-malware 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/Wacatac.C!ml or similar attack, you can activate Malwarebytes to have real-time scanning and complete defense against all forms of threats.

1. Download Malwarebytes Anti-Malware from the link below. Save the file on your hard drive.

2. Once the download completes, double-click on the file MBSetup.exe to run the program.

3. Select desired installation package whether for Personal Computer or Work Computer.

4. On next window, click Install button to proceed.

MBAM Default Install

5. Just proceed with the succeeding prompts until it start to execute the installation procedure.

6. Installation process will take less than a minute. It should run automatically after completing the setup.

7. When Malwarebytes Anti-Malware interface appears, please select Scan on the menu. The program will check for any available update before proceeding. Do not skip this step. Virus scan may take a while, please wait for the process to finish.


8. When scanning is done, Malwarebytes Anti-Malware will display the list of identified threats. Remove all and restart the computer to finalized the scan process.

After executing the above instructions, Trojan:Win32/Wacatac.C!ml should have been eliminated totally from the computer. If there are still signs of infection or computer is displaying unusual behaviors, please continue with the remaining procedures.

Stage 1 : Start Windows in Safe Mode With Networking

Windows 10 Guide

1. Click on Windows logo and select Power icon when options pop-ups.
2. Select Restart from the options while pressing Shift key on the keyboard.
3. Choose an Option window will appear, select the Troubleshoot button.
4. On next window, please choose Advanced Option.
5. On Advanced Option window, click on Startup Settings and then, click Restart button to reboot the computer.
6. When Windows boot on Startup Settings, press function key F5 or number 5 on 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 Windows Start icon at the lower left section of the screen.
2. Open Search window and type Advanced in the field. It will open General PC Settings.
3. Click on Advanced Startup and then, click on Restart Now button.
4. Once the computer starts in Advanced Startup option menu, select Troubleshoot.
5. Next, click on Advanced Options to reveal the next section.
6. Click Startup settings and then, click Restart button to boot the PC in Startup Settings.
7. Use function key F5 or number key 5 to Enable Safe Mode with Networking.

Stage 2 :Double Check with Microsoft Security Apps

Microsoft Windows has built-in security application that you can use to double-check if computer is still infected with Trojan:Win32/Wacatac.C!ml. For Windows 8 and 10 users, please run Windows Defender. Users of Windows Vista and older versions can utilize Microsoft Security Essentials to remove Trojan:Win32/Wacatac.C!ml virus.

Windows 8 / 10 Instructions:

Windows Defender is a free tool that was built help you remove Trojan:Win32/Wacatac.C!ml, viruses, and other malicious items from Windows 8 or Windows 10 system. Follow these procedures to scan your computer with Windows Defender:

1. Tap or click the Search charm, search for defender, and then open Windows Defender.

If Windows Defender is not yet installed on the computer, please proceed to download page using the link below. It also contains detailed instruction to install and use the program effectively. Proper usage is required to totally remove Trojan:Win32/Wacatac.C!ml


2. On the Home tab, click Full under Scan Options. Click Scan now to start scanning for presence of Trojan:Win32/Wacatac.C!ml. The process may take a while to complete.


3. After the scan, delete/quarantine identified threats wether it is relevant to Trojan:Win32/Wacatac.C!ml or not. You may now restart Windows to complete the virus removal process.

Windows XP, Windows Vista, and Windows 7 Instructions:

1. Open Microsoft Security Essentials by going to Windows Start > All Programs. If the tool is not yet installed on the computer, please download Microsoft Security Essentials from the link below. Save the file on your hard drive.

Complete installation guide and usage are also provided on the same link. It is essential in removing Trojan:Win32/Wacatac.C!ml effectively. If Microsoft Security Essentials is already installed on the PC, please proceed with the steps below.

2. On Microsoft Security Essentials Home screen, please choose Full under Scan Options.

MSE Full Scan

3. Click on Scan Now button to start detecting Trojan:Win32/Wacatac.C!ml items, viruses, and malware on the PC. Scan may take a while, please be patient and wait for the process to end.

Share & Recommend

About the author

2 thoughts on “Trojan:Win32/Wacatac.C!ml”

  1. Thank you but I did not need to download the antivirus app that you recommended. I opened the windows defender, ran the full scan and removed the threat and then restart the laptop of windows 10 on which I detected the virus. please I would recommend this way of detecting the virus for windows 8 and 10 users as it is the best way of detecting the virus

  2. Thank you for this information. My laptop got infected via a spam email with a .doc attachment which scanned as harmless but caused the virus to install as soon when opened. I used Malwarebytes and Windows Defender. As long as there was a connection to the web the virus re-appeared and multiplied. Ultimately a system restore to a date before the infection helped.

Leave a Comment

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