Trojan.Lumma.AT
Threat Scorecard
EnigmaSoft Threat Scorecard
EnigmaSoft Threat Scorecards are assessment reports for different malware threats which have been collected and analyzed by our research team. EnigmaSoft Threat Scorecards evaluate and rank threats using several metrics including real-world and potential risk factors, trends, frequency, prevalence, and persistence. EnigmaSoft Threat Scorecards are updated regularly based on our research data and metrics and are useful for a wide range of computer users, from end users seeking solutions to remove malware from their systems to security experts analyzing threats.
EnigmaSoft Threat Scorecards display a variety of useful information, including:
Popularity Rank: The ranking of a particular threat in EnigmaSoft’s Threat Database.
Severity Level: The determined severity level of an object, represented numerically, based on our risk modeling process and research, as explained in our Threat Assessment Criteria.
Infected Computers: The number of confirmed and suspected cases of a particular threat detected on infected computers as reported by SpyHunter.
See also Threat Assessment Criteria.
| Threat Level: | 80 % (High) |
| Infected Computers: | 1 |
| First Seen: | June 13, 2025 |
| Last Seen: | February 2, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.Lumma.AT on your system indicates a potential security threat that requires immediate attention. This report aims to provide you with a comprehensive understanding of the threat, its operational mechanisms, symptoms of infection, and most importantly, steps to remove it from your computer.
Table of Contents
What Is Trojan.Lumma.AT?
Trojan.Lumma.AT is identified as a Trojan-type threat, which means it is a type of malware that disguises itself as a legitimate program to gain unauthorized access to a computer system. Trojans are known for their ability to create backdoors on infected systems, allowing attackers to remotely access and control the system, steal sensitive information, or use the system for malicious activities such as spamming or launching further attacks.
How Trojan.Lumma.AT Operates
Like other Trojans, Trojan.Lumma.AT is designed to operate stealthily, often without the knowledge of the system user. It can be distributed through various means, including but not limited to, email attachments, infected software downloads, or exploited vulnerabilities in operating systems or applications. Once installed, it can communicate with its command and control servers to receive instructions, which might include downloading additional malware, capturing user credentials, or engaging in other malicious activities.
Symptoms of Infection
The symptoms of a Trojan.Lumma.AT infection can vary, but common indicators include unusual system behavior such as slow performance, frequent crashes, or the appearance of unwanted programs or toolbars. Users might also notice that their personal files have been encrypted and are being held for ransom, or that their browser settings have been altered without their consent. In some cases, the infection might not exhibit noticeable symptoms immediately, making it crucial to regularly scan your system for malware.
How to Remove Trojan.Lumma.AT
- Boot into Safe Mode with Networking: This will limit the malware's ability to interfere with the removal process. To do this, restart your computer and press the key to access your boot menu (this key varies by manufacturer but is often F8, F12, or Del). Select Safe Mode with Networking and proceed to the next step.
- Perform a Full Scan with a Reputable Tool: Utilize a trusted anti-malware tool, such as SpyHunter, to scan your system thoroughly. Ensure the tool is updated with the latest definitions to improve the chances of detecting and removing Trojan.Lumma.AT.
- Uninstall Suspicious Programs: Go through your installed programs and uninstall any that you do not recognize or that were installed without your consent. Be cautious, as some legitimate programs might be mistakenly uninstalled.
- Reset Your Browser Settings: If your browser has been affected, resetting it to its default settings can help remove unwanted changes made by the malware. This can usually be done through the browser's settings or preferences menu for browsers like Chrome, Firefox, and Edge.
- Reboot and Re-scan: After completing the above steps, restart your computer in normal mode and perform another full scan with your anti-malware tool to ensure that all traces of the malware have been removed.
Conclusion
Removing Trojan.Lumma.AT requires careful steps to ensure that the malware is completely eradicated from your system. It's also crucial to adopt preventive measures to avoid future infections, such as keeping your operating system and software up to date, using strong antivirus software, avoiding suspicious downloads, and being cautious with email attachments and links. By following the removal steps outlined and maintaining good cybersecurity practices, you can protect your system and personal data from threats like Trojan.Lumma.AT.
Analysis Report
General information
| Family Name: | Trojan.Lumma.AT |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
33dc5fa617e799988b4156ccda02b899
SHA1:
360692b013303ac853a2744c9f465fc8f9476c6f
SHA256:
99EA7DCED9398CD7358FDB971CFF8D568F9C5A570A141B773BF5CA6373E05B63
File Size:
1.39 MB, 1387008 bytes
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Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have security information
- File has exports table
- File has TLS information
- File is 32-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
- File is Native application (NOT .NET application)
- File is not packed
- IMAGE_FILE_DLL is not set inside PE header (Executable)
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- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
Windows PE Version Information
Windows PE Version Information
This section displays values and attributes that have been set in the Windows file version information data structure for samples within this family. To mislead users, malware actors often add fake version information mimicking legitimate software.| Name | Value |
|---|---|
| Company Name | BAC Protection |
| File Description | TQADEK |
| File Version | 1.0.0.0 |
| Internal Name | BAC.dll |
| Legal Copyright | Copyright (C) 2025 |
| Original Filename | BAC.dll |
| Product Name | BAC Protection |
| Product Version | 1.0.0.0 |
File Traits
- dll
- fptable
- WriteProcessMemory
- x86
Block Information
Block Information
During analysis, EnigmaSoft breaks file samples into logical blocks for classification and comparison with other samples. Blocks can be used to generate malware detection rules and to group file samples into families based on shared source code, functionality and other distinguishing attributes and characteristics. This section lists a summary of this block data, as well as its classification by EnigmaSoft. A visual representation of the block data is also displayed, where available.| Total Blocks: | 4,615 |
|---|---|
| Potentially Malicious Blocks: | 105 |
| Whitelisted Blocks: | 4,068 |
| Unknown Blocks: | 442 |
Visual Map
? - Unknown Block
x - Potentially Malicious Block
Windows API Usage
Windows API Usage
This section lists Windows API calls that are used by the samples in this family. Windows API usage analysis is a valuable tool that can help identify malicious activity, such as keylogging, security privilege escalation, data encryption, data exfiltration, interference with antivirus software, and network request manipulation.| Category | API |
|---|---|
| Syscall Use |
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| Process Manipulation Evasion |
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| Process Shell Execute |
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| Anti Debug |
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Shell Command Execution
Shell Command Execution
This section lists Windows shell commands that are run by the samples in this family. Windows Shell commands are often leveraged by malware for nefarious purposes and can be used to elevate security privileges, download and launch other malware, exploit vulnerabilities, collect and exfiltrate data, and hide malicious activity.
C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\360692b013303ac853a2744c9f465fc8f9476c6f_0001387008.,LiQMAxHB
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