Trojan.MSIL.Krypt.JSA
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: | 11 |
| First Seen: | November 5, 2025 |
| Last Seen: | March 14, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.MSIL.Krypt.JSA 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 mode of operation, symptoms of infection, and most importantly, steps to remove it from your system. It's essential to approach this situation with caution and follow the recommended guidelines to ensure your system's security and integrity.
Table of Contents
What Is Trojan.MSIL.Krypt.JSA?
Trojan.MSIL.Krypt.JSA is identified as a Trojan-type threat. Trojans are malicious programs that disguise themselves as legitimate software but are designed to cause harm to your computer system. They can allow unauthorized access to your system, steal sensitive information, or disrupt system operations. The name Trojan.MSIL.Krypt.JSA itself does not directly indicate a specific malware family but suggests it's a type of Trojan written in MSIL (Microsoft Intermediate Language) and possibly involves encryption or cryptographic techniques (indicated by "Krypt"). Understanding the nature of this threat is crucial for taking appropriate measures to protect your system and data.
How Trojan.MSIL.Krypt.JSA Operates
Trojan.MSIL.Krypt.JSA, like other Trojans, operates by deceiving users into installing it on their systems. This can happen through various means such as downloading software from untrusted sources, opening malicious email attachments, or clicking on links that lead to compromised websites. Once installed, it can perform a variety of malicious activities. These can include stealing personal data, installing additional malware, providing unauthorized access to the system, or disrupting system operations. The specific operations of Trojan.MSIL.Krypt.JSA can vary, but the common goal is to compromise the security and integrity of the infected system.
Symptoms of Infection
Symptoms of a Trojan infection can be subtle and may not always be immediately apparent. However, common signs include unusual system behavior such as slow performance, frequent crashes, or the appearance of unwanted programs or toolbars in your web browser. You might also notice that your system is behaving erratically, such as programs opening or closing on their own, or you might receive notifications about suspicious activity from your antivirus software. Being vigilant about these symptoms can help in early detection and removal of the threat.
How to Remove Trojan.MSIL.Krypt.JSA
- Boot your computer in Safe Mode with Networking. This will restrict the malware's ability to operate and provide a safer environment for removal.
- Perform a full scan of your system using a reputable antivirus tool such as SpyHunter. Ensure the tool is updated with the latest definitions to increase the chances of detecting and removing the malware.
- Uninstall any recently installed programs that you do not recognize or that were installed around the time the malware was detected. Be cautious and only remove programs you are sure are not essential to your system's operation.
- Reset your web browsers (Chrome, Firefox, Edge, etc.) to their default settings. This can help remove any malicious extensions or settings that the malware might have installed.
- After completing the above steps, reboot your system and perform another full scan to ensure that the malware has been completely removed. Repeat the scanning process until no threats are detected.
Conclusion
The removal of Trojan.MSIL.Krypt.JSA requires careful and systematic steps to ensure that the malware is completely eradicated from your system. It's crucial to stay informed about the latest threats and to maintain good cybersecurity practices such as regularly updating your antivirus software, avoiding suspicious downloads, and being cautious with email attachments and links. By following the guidelines provided and maintaining vigilance, you can protect your system from Trojan.MSIL.Krypt.JSA and other malware threats, ensuring the security and integrity of your data and system.
Analysis Report
General information
| Family Name: | Trojan.MSIL.Krypt.JSA |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
e01f4cf4892bfac622be60b54a19d13a
SHA1:
bb365a1c168ce4cd0860d5a4747300e856cab62a
SHA256:
74978E93811A8F1A48CD9F2D5C9DB4A87E4CCBD9591A6082AE01E0684C5604E6
File Size:
1.10 MB, 1097216 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)
File Icons
File Icons
This section displays icon resources found within family samples. Malware often replicates icons commonly associated with legitimate software to mislead users into believing the malware is safe.
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 |
|---|---|
| Comments | System integration support service |
| Company Name | Atlantic Software Consortium |
| File Description | Update Deployment Tool |
| File Version | 2025.1113.1401.04 |
| Legal Copyright | Copyright © 2025. Proprietary software |
| Product Name | Remote Management Console |
| Product Version | 8.8.317.143 |
File Traits
- .NET
- RijndaelManaged
- 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: | 414 |
|---|---|
| Potentially Malicious Blocks: | 197 |
| Whitelisted Blocks: | 217 |
| Unknown Blocks: | 0 |
Visual Map
? - Unknown Block
x - Potentially Malicious Block
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 |
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| 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 |
|
| Anti Debug |
|
| Network Info Queried |
|
| Other Suspicious |
|
| Network Winsock2 |
|
| Network Winsock |
|
| Network Winhttp |
|
