Trojan.Filecoder.CUA
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: | 40 |
| First Seen: | July 27, 2024 |
| Last Seen: | December 22, 2025 |
| OS(es) Affected: | Windows |
The detection of Trojan.Filecoder.CUA on your system indicates a potential security threat that requires immediate attention. This type of malware is designed to compromise the integrity of your computer and steal sensitive information, making it essential to understand its nature and take prompt action to remove it.
Table of Contents
What Is Trojan.Filecoder.CUA?
Trojan.Filecoder.CUA is a type of Trojan horse malware that can infect computers through various means, such as exploited vulnerabilities, phishing attacks, or drive-by downloads. The name "Trojan" refers to the malware's ability to disguise itself as a legitimate program or file, allowing it to evade detection and gain unauthorized access to the system. The ".Filecoder" part of the name suggests that this malware may be capable of encrypting or modifying files on the infected computer.
How Trojan.Filecoder.CUA Operates
Once installed, Trojan.Filecoder.CUA can operate in the background, allowing the attacker to remotely access and control the infected computer. This can lead to a range of malicious activities, including data theft, keylogging, and the installation of additional malware. The malware may also attempt to spread to other computers on the same network or through infected files and emails.
The exact mechanisms used by Trojan.Filecoder.CUA to operate and spread are not publicly known, but it is likely that it uses common tactics such as exploiting vulnerabilities, using social engineering techniques, and leveraging system weaknesses to achieve its goals.
Symptoms of Infection
Computers infected with Trojan.Filecoder.CUA may exhibit a range of symptoms, including slow performance, unexpected crashes, and unusual network activity. You may also notice that files or folders have been modified or encrypted, or that new programs or icons have appeared on your desktop. In some cases, the malware may not exhibit any noticeable symptoms, making it difficult to detect without the use of specialized security software.
- Unexplained changes to system settings or files
- Slow or unstable system performance
- Unusual network activity or connectivity issues
- Appearance of unknown programs or icons
How to Remove Trojan.Filecoder.CUA
- Boot your computer in Safe Mode with Networking to prevent the malware from loading and to allow for easier removal.
- Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system and detect any malware or related files.
- Uninstall any suspicious programs or applications that may be related to the malware.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or add-ons.
- Reboot your computer and perform another full scan with your anti-malware tool to ensure that all malware has been removed.
Conclusion
Removing Trojan.Filecoder.CUA from your computer requires a combination of technical expertise and caution. By following the steps outlined above and using reputable security software, you can help to ensure that your system is free from this malware and any related threats. It is essential to remain vigilant and take proactive steps to protect your computer and data from future infections, including keeping your operating system and software up to date, using strong passwords, and avoiding suspicious emails and downloads.
Analysis Report
General information
| Family Name: | Trojan.Filecoder.CUA |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
90a30591697c2c337bb3bb9f326e440c
SHA1:
77d617225bd02280e768b25fb7d56673e8aa0986
SHA256:
7D3E4C916A715DFD0A047D77144F87E09BF733C6A02F44A98EF4B90A5BEF0094
File Size:
78.85 KB, 78848 bytes
|
|
MD5:
f307f84f529364e9fc957c69496be1ef
SHA1:
97fcdc6d10d11678bdb071f6ea348f415fd828df
SHA256:
303978954A91583FC7DD6A384AB6B791D069CF0D8529E7A8A7ECE10EA38AC556
File Size:
81.41 KB, 81408 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have security information
- File has exports table
- File is 64-bit executable
- File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
- 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 | Microsoft Corporation |
| File Description |
|
| File Version |
|
| Internal Name |
|
| Legal Copyright | © Microsoft Corporation. All rights reserved. |
| Original Filename |
|
| Product Name | Microsoft® Windows® Operating System |
| Product Version |
|
File Traits
- 2+ executable sections
- dll
- ntdll
- WriteProcessMemory
- x64
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: | 46 |
|---|---|
| Potentially Malicious Blocks: | 1 |
| Whitelisted Blocks: | 44 |
| Unknown Blocks: | 1 |
Visual Map
? - Unknown Block
x - Potentially Malicious Block
Similar Families
Similar Families
This section lists other families that share similarities with this family, based on EnigmaSoft’s analysis. Many malware families are created from the same malware toolkits and use the same packing and encryption techniques but uniquely extend functionality. Similar families may also share source code, attributes, icons, subcomponents, compromised and/or invalid digital signatures, and network characteristics. Researchers leverage these similarities to rapidly and effectively triage file samples and extend malware detection rules.- Filecoder.CU
- Filecoder.CUA
- Filecoder.CUB
Registry Modifications
Registry Modifications
This section lists registry keys and values that were created, modified and/or deleted by samples in this family. Windows Registry activity can provide valuable insight into malware functionality. Additionally, malware often creates registry values to allow itself to automatically start and indefinitely persist after an initial infection has compromised the system.| Key::Value | Data | API Name |
|---|---|---|
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 | �j �v1�@V� {b��/�����X����m� ����$წ�� �=�SB1_ T�Vw���%������ �AE��D��&��$���L | RegNtPreCreateKey |
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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1 additional items are not displayed above. |
