Trojan.MSIL.BypassUAC.LC
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: | 3 |
| First Seen: | October 29, 2025 |
| Last Seen: | February 18, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.MSIL.BypassUAC.LC indicates that a potentially malicious program has been identified on your system. This name suggests a type of Trojan horse malware that attempts to bypass User Account Control (UAC) on Windows systems, which are designed to prompt users for permission before allowing programs to make changes to the system. Understanding what this threat is and how it operates is crucial for effective removal and prevention of future infections.
Table of Contents
What Is Trojan.MSIL.BypassUAC.LC?
Trojan.MSIL.BypassUAC.LC is categorized as a Trojan-type threat, which means it is a malicious program designed to grant unauthorized access to a computer system. The "MSIL" part of the name refers to Microsoft Intermediate Language, suggesting that the malware is written in a .NET language and is executed by the .NET Common Language Runtime (CLR). The "BypassUAC" part indicates its ability to evade the Windows User Account Control, potentially allowing it to perform malicious actions without prompting the user for elevated permissions.
How Trojan.MSIL.BypassUAC.LC Operates
Malware like Trojan.MSIL.BypassUAC.LC typically operates by exploiting vulnerabilities in the system or by tricking users into executing the malicious code. Once inside, it can perform a variety of malicious actions, including but not limited to, stealing sensitive information, installing additional malware, or providing backdoor access to the attackers. The specific actions of Trojan.MSIL.BypassUAC.LC can vary, but its primary goal is to compromise the security of the infected system without being detected.
Symptoms of Infection
Symptoms of an infection can be subtle and may not always be immediately apparent. Common indicators include unusual system behavior, such as unexpected pop-ups, slow system performance, or unfamiliar programs installed on the system. In some cases, the malware may cause no noticeable symptoms at all, making it difficult for users to detect without the aid of security software.
- Unexplained changes to system settings or files
- Appearance of unfamiliar programs or icons
- Increased network activity without a known cause
- System crashes or instability
How to Remove Trojan.MSIL.BypassUAC.LC
- Boot your computer in Safe Mode with Networking to limit the malware's ability to interfere with the removal process.
- Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all traces of the malware.
- Uninstall any suspicious programs that were installed around the time of the infection. Be cautious and only remove programs you are certain are malicious or unnecessary.
- Reset your web browsers (Chrome, Firefox, Edge, etc.) to their default settings to remove any malicious extensions or settings changes made by the malware.
- Reboot your system and perform another scan with your anti-malware tool to ensure that all components of the malware have been removed.
Conclusion
Removing Trojan.MSIL.BypassUAC.LC requires careful attention to detail and the use of reputable security tools. It's essential to stay vigilant and keep your security software up to date to protect against future threats. Regular system backups, avoiding suspicious downloads, and being cautious with email attachments and links can also help prevent malware infections. By understanding the nature of this threat and taking proactive steps, you can help secure your system and protect your personal data.
Analysis Report
General information
| Family Name: | Trojan.MSIL.BypassUAC.LC |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
50340a6e97d8b15506827198a303bd2b
SHA1:
f6f9b2cf0c8bf045998101612fc0b21a13f33505
SHA256:
93D17BA759C4DE2E390CE58D893BF11A90A5FD13E088928C943822C34C04069F
File Size:
11.26 KB, 11264 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have exports table
- File doesn't have security information
- File is .NET application
- File is 32-bit executable
- File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
- File is either console or GUI application
- File is not packed
- IMAGE_FILE_DLL is not set inside PE header (Executable)
- 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 |
|---|---|
| Assembly Version | 1.0.0.0 |
| File Description | persistent2.0 |
| File Version | 1.0.0.0 |
| Internal Name | persistent2.0.exe |
| Legal Copyright | Copyright © 2025 |
| Original Filename | persistent2.0.exe |
| Product Name | persistent2.0 |
| Product Version | 1.0.0.0 |
File Traits
- .NET
- 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: | 17 |
|---|---|
| Potentially Malicious Blocks: | 1 |
| Whitelisted Blocks: | 16 |
| Unknown Blocks: | 0 |
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.- MSIL.Agent.FSDA
- MSIL.BypassUAC.K
- MSIL.BypassUAC.LC
- MSIL.Inject.YT
Files Modified
Files Modified
This section lists files that were created, modified, moved and/or deleted by samples in this family. File system activity can provide valuable insight into how malware functions on the operating system.| File | Attributes |
|---|---|
| c:\users\public\seguridad_windows1212.vbs | Generic Write,Read Attributes |
| c:\users\user\appdata\roaming\microsoft\windows\start menu\programs\startup\windows.vbs | Generic Write,Read Attributes |
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 |
|---|---|
| User Data Access |
|