Trojan.MSIL.Njrat.J
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: | 0 |
| First Seen: | September 29, 2025 |
| OS(es) Affected: | Windows |
The detection of Trojan.MSIL.Njrat.J on your system indicates a potential security threat that requires immediate attention. This report provides an overview of the threat, its operating methods, symptoms of infection, and a step-by-step guide on how to remove it from your system.
Table of Contents
What Is Trojan.MSIL.Njrat.J?
Trojan.MSIL.Njrat.J is a type of malware that can compromise the security and integrity of your computer system. The name suggests it is a Trojan-type threat, which typically disguises itself as legitimate software to gain unauthorized access to a computer. Trojans can be used to steal sensitive information, install additional malware, or provide a backdoor for remote access by an attacker.
How Trojan.MSIL.Njrat.J Operates
Malware like Trojan.MSIL.Njrat.J often operates by exploiting vulnerabilities in software or tricking users into installing it. Once installed, it can execute a variety of malicious actions, including but not limited to, data theft, keylogging, and the installation of additional malicious software. The specific operations of Trojan.MSIL.Njrat.J can vary, but its primary goal is to compromise your system's security and privacy.
Symptoms of Infection
Symptoms of a Trojan infection can be subtle and may not always be immediately apparent. Common signs include unusual system behavior, such as unexpected pop-ups, slow system performance, and unfamiliar programs or icons. You might also experience difficulties with your internet connection or notice that your system settings have been altered without your consent. Since Trojans can act as backdoors, you might not notice any symptoms at all until significant damage has been done.
How to Remove Trojan.MSIL.Njrat.J
- Enter Safe Mode with Networking: Restart your computer and enter Safe Mode. This will limit the malware's ability to interfere with the removal process and allow you to download necessary tools.
- Conduct a Full Scan: Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system. This can help identify and remove the Trojan and any associated malware.
- Uninstall Suspicious Programs: Go through your installed programs and uninstall any that you do not recognize or that were installed around the time your system became infected.
- Reset Your Browser: If your browser (such as Chrome, Firefox, or Edge) has been affected, reset it to its default settings. This can help remove any malicious extensions or settings changes made by the malware.
- Reboot and Re-scan: After completing the above steps, reboot your system and perform another full scan with your anti-malware tool to ensure that the threat has been fully removed.
Conclusion
Removing Trojan.MSIL.Njrat.J from your system requires careful and thorough action. By following the steps outlined above and maintaining vigilance through regular system scans and updates, you can help protect your system against future threats. Remember, prevention is key; keeping your operating system, software, and security tools up to date, along with practicing safe browsing habits, can significantly reduce the risk of malware infections.
Analysis Report
General information
| Family Name: | Trojan.MSIL.Njrat.J |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
ef9d7c9140be950e8f68af63e6a7a82e
SHA1:
e726e6d5325427bd1ec6b5236eaedfc7639640fc
SHA256:
EB3F803C94B6AC69D022A5143700450F27E5369B7FD31A11733E504E0B9DCB19
File Size:
91.65 KB, 91648 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have debug information
- 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)
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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 |
|---|---|
| Assembly Version | 1.0.0.0 |
| File Description | Setup |
| File Version | 1.0.0.0 |
| Internal Name | Setup.exe |
| Legal Copyright | Copyright © 2025 |
| Original Filename | Setup.exe |
| Product Name | Setup |
| Product Version | 1.0.0.0 |
File Traits
- .NET
- Installer Version
- RijndaelManaged
- 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: | 50 |
|---|---|
| Potentially Malicious Blocks: | 7 |
| Whitelisted Blocks: | 43 |
| 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.FBK
- MSIL.Agent.PI
- MSIL.Gamehack.BOWB
- MSIL.Gamehack.BOWD
- MSIL.Njrat.J
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- Quasar.I
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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| User Data Access |
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