What Is WellMess Trojan
WellMess Trojan is one of the advanced malware which has been used in several dangerous attack campaigns over the years. Different hacking groups have created their own versions of it. It can not only overtake control of the computers, but also hijack user data and commit dangerous actions on the hosts.
WellMess Trojan Summary
| Name | WellMess Trojan |
| Type | Trojan/Keylogger |
| Short Description | Aims to steal data from your computer and run different malware actions. |
| Symptoms | Your computer may behave strangely and new files may be dropped in several Windows Directories. |
| Distribution Method | Common infection methods including phishing messages and malware-infected files. |
| Detection Tool |
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WellMess Trojan – Virus Infection Methods
WellMess Trojan is being distributed against targets using a variety of techniques. The malware can be used as a weapon by different hacking groups who have access to this tool. It has been known to be used in active attack campaigns since 2018. The Trojan is written in the Go programming language and also compatible with the .NET framework. As a result the WellMess Trojan comes in two variants — 32 and 64 bits architectures are supported.
There are two main distribution techniques:
- Payload Droppers — The Trojan code can be carried by various types of files such as application installers. They are often of popular software that is commonly installed by end users — this can range from productivity and office programs, system utilities and even computer games. The hackers usually make them by embedding in the necessary code in the installation executable files.
- Malware Files Hosting — An alternative is the creation of macro-infected documents — they are of all common formats such as presentations, text documents, databases and spreadsheets. When they are opened by the users a prompt will be shown to them asking them to enable the macros. When this is done this will trigger the Trojan downloading to the host computer and its execution.
During most of the attack campaigns so far the majority of versions were mainly created to be compatible with the modern versions of Microsoft Windows. In one of its more prominent campaigns a hacking group has used the WellMess Trojan against COVID-19 vaccine research organizations. Instead of pushing it through standard distribution tactics the hackers are using advanced techniques such as deep network reconnaissance in order to find the most suitable infection method.
The WellMess Trojan according to its release can differ in their behavior sequence and method of infection. Some of the earlier samples depended on being downloaded by the users from malware sites under the form of legitimate software.
WellMess Trojan – Virus Capabilities
When the Trojan has infected a given computer the main engine will start a data gathering module — it is designed to harvest sensitive user data and system metrics. Some of the data that is obtained by it includes the computer name, domain name, hardcoded values and etc. This will generate a string which is created to identify each hacked host.
Like other malware of this category the WellMess Trojan will install a local client agent which will establish a secure and persistent connection to a hacker-controlled server. This virus can do it over three protocols: HTTP, HTTPS and DNS, thus making the traffic much more difficult to trace. The data which is sent and received is masked in order to remain hidden from analysis.
One of the acquired samples shows how the virus operates on an infected machine — it can load and run PowerShell scripts, as well as ensure that the network connection between the local client and the hacker-controlled server stays persistent. Trojan infections are also commonly used to steal files that are found on the infected computers.
Using the remote connection the hackers can easily reconfigure the operating system. This can lead to numerous malware consequences:
- Boot Options Changes — The hackers can edit the boot configuration files so that the virus will be started automatically. By making these changes the malware can also block the access to the recovery options which will make removal much more difficult.
- Windows Registry Edit — The ransomware can edit the Windows Registry values or create new ones for itself. This will lead to severe performance issues and potential data loss, as well as general system instability.
- Additional Malware Delivery — The Trojan can be used to install other threats to the already compromised systems. Common examples are file encrypting ransomware which will process user data and then request the victims for a ransom decryption fee. Alternatives can be cryptocurrency miners which will take advantage of the available computing power to run complex mathematical tasks. For every completed and reported one back to the controlling servers the hacker operators of the Trojan will be rewarded with cryptocurrency assets that will be directly transferred to their digital wallets.
We recommend that all detected infections are removed as soon as possible in order to protect against further damage to the infected hosts.
WellMess Trojan – Virus Removal GUIDE
In order to fully remove this infection from your computer system, recommendations are to try the automatic removal guidelines below. They are particularly created in order to assist you separate this malware first of all and after that remove it’s destructive files. If you lack the experience in malware removal, the best method and most reliable one according to safety professionals is to use an innovative anti-malware software program. Such will not just immediately get rid of the WellMess infection from your computer system, yet will certainly additionally ensure that your computer system remains shielded versus future infections.
Martin Beltov
Martin graduated with a degree in Publishing from Sofia University. As a cyber security enthusiast he enjoys writing about the latest threats and mechanisms of intrusion.
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Preparation before removing WellMess Trojan.
Before starting the actual removal process, we recommend that you do the following preparation steps.
- Make sure you have these instructions always open and in front of your eyes.
- Do a backup of all of your files, even if they could be damaged. You should back up your data with a cloud backup solution and insure your files against any type of loss, even from the most severe threats.
- Be patient as this could take a while.
- Scan for Malware
- Fix Registries
- Remove Virus Files
Step 1: Scan for WellMess Trojan with SpyHunter Anti-Malware Tool
Step 2: Clean any registries, created by WellMess Trojan on your computer.
The usually targeted registries of Windows machines are the following:
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
You can access them by opening the Windows registry editor and deleting any values, created by WellMess Trojan there. This can happen by following the steps underneath:
Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.Step 3: Find virus files created by WellMess Trojan on your PC.
1.For Windows 8, 8.1 and 10.
For Newer Windows Operating Systems
1: On your keyboard press + R and write explorer.exe in the Run text box and then click on the Ok button.
2: Click on your PC from the quick access bar. This is usually an icon with a monitor and its name is either “My Computer”, “My PC” or “This PC” or whatever you have named it.
3: Navigate to the search box in the top-right of your PC's screen and type “fileextension:” and after which type the file extension. If you are looking for malicious executables, an example may be "fileextension:exe". After doing that, leave a space and type the file name you believe the malware has created. Here is how it may appear if your file has been found:
N.B. We recommend to wait for the green loading bar in the navigation box to fill up in case the PC is looking for the file and hasn't found it yet.
2.For Windows XP, Vista, and 7.
For Older Windows Operating Systems
In older Windows OS's the conventional approach should be the effective one:
1: Click on the Start Menu icon (usually on your bottom-left) and then choose the Search preference.
2: After the search window appears, choose More Advanced Options from the search assistant box. Another way is by clicking on All Files and Folders.
3: After that type the name of the file you are looking for and click on the Search button. This might take some time after which results will appear. If you have found the malicious file, you may copy or open its location by right-clicking on it.
Now you should be able to discover any file on Windows as long as it is on your hard drive and is not concealed via special software.
WellMess Trojan FAQ
What Does WellMess Trojan Trojan Do?
The WellMess Trojan Trojan is a malicious computer program designed to disrupt, damage, or gain unauthorized access to a computer system. It can be used to steal sensitive data, gain control over a system, or launch other malicious activities.
Can Trojans Steal Passwords?
Yes, Trojans, like WellMess Trojan, can steal passwords. These malicious programs are designed to gain access to a user's computer, spy on victims and steal sensitive information such as banking details and passwords.
Can WellMess Trojan Trojan Hide Itself?
Yes, it can. A Trojan can use various techniques to mask itself, including rootkits, encryption, and obfuscation, to hide from security scanners and evade detection.
Can a Trojan be Removed by Factory Reset?
Yes, a Trojan can be removed by factory resetting your device. This is because it will restore the device to its original state, eliminating any malicious software that may have been installed. Bear in mind that there are more sophisticated Trojans that leave backdoors and reinfect even after a factory reset.
Can WellMess Trojan Trojan Infect WiFi?
Yes, it is possible for a Trojan to infect WiFi networks. When a user connects to the infected network, the Trojan can spread to other connected devices and can access sensitive information on the network.
Can Trojans Be Deleted?
Yes, Trojans can be deleted. This is typically done by running a powerful anti-virus or anti-malware program that is designed to detect and remove malicious files. In some cases, manual deletion of the Trojan may also be necessary.
Can Trojans Steal Files?
Yes, Trojans can steal files if they are installed on a computer. This is done by allowing the malware author or user to gain access to the computer and then steal the files stored on it.
Which Anti-Malware Can Remove Trojans?
Anti-malware programs such as SpyHunter are capable of scanning for and removing Trojans from your computer. It is important to keep your anti-malware up to date and regularly scan your system for any malicious software.
Can Trojans Infect USB?
Yes, Trojans can infect USB devices. USB Trojans typically spread through malicious files downloaded from the internet or shared via email, allowing the hacker to gain access to a user's confidential data.
About the WellMess Trojan Research
The content we publish on SensorsTechForum.com, this WellMess Trojan how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific trojan problem.
How did we conduct the research on WellMess Trojan?
Please note that our research is based on an independent investigation. We are in contact with independent security researchers, thanks to which we receive daily updates on the latest malware definitions, including the various types of trojans (backdoor, downloader, infostealer, ransom, etc.)
Furthermore, the research behind the WellMess Trojan threat is backed with VirusTotal.
To better understand the threat posed by trojans, please refer to the following articles which provide knowledgeable details.