Trojan.MSIL.Downloader.LGA
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.
| Popularity Rank: | 23,030 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 1,444 |
| First Seen: | September 24, 2023 |
| Last Seen: | October 11, 2026 |
| OS(es) Affected: | Windows |
Trojan.MSIL.Downloader.LGA is a malicious program classified as a Trojan downloader, built on the Microsoft .NET framework (MSIL stands for Microsoft Intermediate Language, the code format used by .NET applications). Its main job is not to cause damage directly, but to secretly bring additional malware onto an infected Windows computer. With a danger level rated 8 out of 10, this threat should be taken seriously by any user who suspects it has found its way onto their system.
Table of Contents
What Trojan.MSIL.Downloader.LGA Does
Like other Trojans, Trojan.MSIL.Downloader.LGA installs itself quietly and runs in the background without displaying any visible windows or warnings. Once active, it is designed to communicate with remote servers controlled by attackers, using networking functions to establish outbound connections and send or receive data. This behavior allows it to download and execute additional malicious files on the compromised machine, effectively acting as a delivery mechanism for other threats such as ransomware, spyware, password stealers, or additional Trojans.
Analysis of this threat shows it collects basic information about the infected system, including the computer name, user account details, and locale settings. This data can help attackers fingerprint the machine and decide what additional payloads to deliver. The sample has also been observed attempting to adjust system privileges, a technique sometimes used to gain broader access to the operating system, and it includes anti-debugging checks that can make it harder for security tools to analyze its behavior. In general, Trojans in this category can delete files, steal passwords, alter system settings, and monitor user activity once they gain a foothold.
How It Usually Gets Onto Computers
Trojan.MSIL.Downloader.LGA typically spreads the way most Trojans do: through deceptive email attachments disguised as harmless files (such as .exe, .pif, .avi, or even .jpg files), bundled with pirated or cracked software, or hidden inside downloads from untrustworthy or compromised websites. It may also exploit unpatched security vulnerabilities to install itself without any obvious action from the user. The sample observed uses a generic-sounding product name in its file details, a common tactic used to make the file appear legitimate and avoid raising suspicion.
Risks for the User
Because this Trojan's core purpose is to download further malicious software, an infection can quickly escalate from a single downloader into a much larger problem. Potential risks include theft of personal and financial information, unauthorized remote access to the computer, corruption or deletion of files, degraded system performance, and the installation of multiple additional infections without the user's knowledge.
Signs of Infection
Trojan downloaders are built to stay hidden, so obvious symptoms are not always present. However, users may notice unexplained network activity or slower internet performance, unfamiliar processes running in Task Manager, new programs appearing that were never installed intentionally, unexpected system slowdowns, or security software being disabled or malfunctioning.
How to Stay Protected
To reduce the risk of infection, avoid opening email attachments from unknown or unexpected senders, especially executable files disguised as documents or media. Download software only from official or trusted sources, keep the operating system and all applications fully updated to close known security gaps, and use reputable, up-to-date security software capable of detecting and removing Trojans. Regularly backing up important files also helps limit the damage if an infection does occur.
Analysis Report
General information
| Family Name: | Trojan.MSIL.Downloader.LGA |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
a9004a3cce9a7bdd632ac00fe13b5e38
SHA1:
ffc191ea44353802e83291558824a45a7dd5850c
SHA256:
5D83917A0FAE0C2618445BCC502411E0DADF05B64EFC4AD1F3266979DB258485
File Size:
872.45 KB, 872448 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 either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
- 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 | FRP3.0 |
| File Version | 1.0.0.0 |
| Internal Name | FRP3.0.exe |
| Legal Copyright | Copyright © 2026 |
| Original Filename | FRP3.0.exe |
| Product Name | FRP3.0 |
| 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: | 2,769 |
|---|---|
| Potentially Malicious Blocks: | 36 |
| Whitelisted Blocks: | 2,718 |
| Unknown Blocks: | 15 |
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.Downloader.LG
- MSIL.Downloader.LGA
- MSIL.Krypt.ABTPHE
- MSIL.Mardom.LJ
- MSIL.Mardom.TB
Show More
- Marsilia.D
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\wow6432node\microsoft\tracing::enableconsoletracing | RegNtPreCreateKey | |
| HKLM\software\wow6432node\microsoft\tracing\rasapi32::enablefiletracing | RegNtPreCreateKey | |
| HKLM\software\wow6432node\microsoft\tracing\rasapi32::enableautofiletracing | RegNtPreCreateKey | |
| HKLM\software\wow6432node\microsoft\tracing\rasapi32::enableconsoletracing | RegNtPreCreateKey | |
| HKLM\software\wow6432node\microsoft\tracing\rasapi32::filetracingmask | RegNtPreCreateKey | |
| HKLM\software\wow6432node\microsoft\tracing\rasapi32::consoletracingmask | RegNtPreCreateKey | |
| HKLM\software\wow6432node\microsoft\tracing\rasapi32::maxfilesize | RegNtPreCreateKey | |
| HKLM\software\wow6432node\microsoft\tracing\rasapi32::filedirectory | %windir%\tracing | RegNtPreCreateKey |
| HKLM\software\wow6432node\microsoft\tracing\rasmancs::enablefiletracing | RegNtPreCreateKey | |
| HKLM\software\wow6432node\microsoft\tracing\rasmancs::enableautofiletracing | RegNtPreCreateKey |
Show More
| HKLM\software\wow6432node\microsoft\tracing\rasmancs::enableconsoletracing | RegNtPreCreateKey | |
| HKLM\software\wow6432node\microsoft\tracing\rasmancs::filetracingmask | RegNtPreCreateKey | |
| HKLM\software\wow6432node\microsoft\tracing\rasmancs::consoletracingmask | RegNtPreCreateKey | |
| HKLM\software\wow6432node\microsoft\tracing\rasmancs::maxfilesize | RegNtPreCreateKey | |
| HKLM\software\wow6432node\microsoft\tracing\rasmancs::filedirectory | %windir%\tracing | 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 |
|---|---|
| User Data Access |
|
| Other Suspicious |
|
| Anti Debug |
|
| Network Winsock2 |
|
| Network Winsock |
|
| Network Winhttp |
|
| Network Info Queried |
|
| Encryption Used |
|
