Trojan.MSIL.Perseus.AJ
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: | 4 |
| First Seen: | January 4, 2024 |
| Last Seen: | January 14, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.MSIL.Perseus.AJ 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 operational mechanisms, symptoms of infection, and most importantly, steps to remove it from your system. Understanding the nature of this threat is crucial in mitigating its effects and securing your computer against future vulnerabilities.
Table of Contents
What Is Trojan.MSIL.Perseus.AJ?
Trojan.MSIL.Perseus.AJ is identified as a Trojan-type threat. Trojans are malicious programs that can cause harm to your computer system by allowing unauthorized access to your system, stealing data, or installing additional malware. The name suggests it is written in MSIL (Microsoft Intermediate Language), which is a platform-agnostic, object-oriented programming language used by the.NET Framework. This implies that the malware can potentially run on any system that supports the.NET Framework, making it versatile and potentially widespread.
How Trojan.MSIL.Perseus.AJ Operates
Like other Trojans, Trojan.MSIL.Perseus.AJ operates by disguising itself as legitimate software to gain entry into a system. Once inside, it can perform a variety of malicious actions, including but not limited to, data theft, installation of additional malware, and creation of backdoors for remote access by attackers. The specific operations of Trojan.MSIL.Perseus.AJ can vary, but its primary goal is to compromise the security and integrity of the infected system for malicious purposes.
Symptoms of Infection
Symptoms of a Trojan infection can be subtle and may not always be immediately apparent. Common indicators include unusual system behavior, such as slow performance, frequent crashes, or pop-ups and unwanted software installations. Additionally, if your antivirus software is disabled or your firewall settings are altered without your knowledge, it could be a sign of a Trojan infection. Since Trojans can act as backdoors, the presence of unauthorized access or unexpected network activity could also signal an infection.
- Unexplained changes in system settings or files
- Appearance of unknown or suspicious programs
- Increased network activity without apparent cause
- System crashes or instability
How to Remove Trojan.MSIL.Perseus.AJ
- Boot into Safe Mode with Networking: This will limit the malware's ability to run and make it easier to remove. To do this, restart your computer and repeatedly press the F8 key until the Advanced Boot Options menu appears. Select Safe Mode with Networking and press Enter.
- Perform a Full Scan with a Reputable Tool: Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system. Ensure the tool is updated with the latest definitions before scanning.
- Uninstall Suspicious Programs: Go through your installed programs and uninstall anything that looks suspicious or unfamiliar. Be cautious and only uninstall programs you are sure are malicious or unnecessary.
- Reset Your Browser Settings: If your browser settings have been altered, reset them to their default state. This can usually be done through the browser's settings or options menu. For Chrome, Firefox, and Edge, you can find these options under their respective settings menus.
- Reboot and Re-scan: After removal and cleanup, reboot your system and perform another full scan to ensure all remnants of the malware have been removed.
Conclusion
Removing Trojan.MSIL.Perseus.AJ requires careful and systematic steps to ensure the malware is completely eradicated from your system. It's crucial to stay vigilant and maintain good security practices to prevent future infections. Keeping your operating system, software, and security tools up to date, avoiding suspicious downloads, and using strong, unique passwords can significantly reduce the risk of malware infections. If you're unsure about any part of the removal process, consider consulting with a security professional to ensure your system is thoroughly cleaned and protected.
Analysis Report
General information
| Family Name: | Trojan.MSIL.Perseus.AJ |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
54fedbf5b1967529b49b9ea6dbc3fa7e
SHA1:
26f63a08efd886a9121d13b26766dcf3c341a9ab
SHA256:
474BD6D9A899EFE56C55D41F0EAD73E04B5D79A48E2A2C501C1B0B8C4C0BB548
File Size:
21.50 KB, 21504 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 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)
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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 | Resolvedor de problemas |
| File Version | 1.0.0.0 |
| Internal Name | Resolvedor de problemas.exe |
| Legal Copyright | Copyright © 2023 |
| Original Filename | Resolvedor de problemas.exe |
| Product Name | Resolvedor de problemas |
| 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: | 44 |
|---|---|
| Potentially Malicious Blocks: | 11 |
| Whitelisted Blocks: | 18 |
| Unknown Blocks: | 15 |
Visual Map
? - Unknown Block
x - Potentially Malicious Block
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\user\downloads\requisitos.zip | Generic Write,Read Attributes |
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 |
|
| Other Suspicious |
|
| Network Winsock2 |
|
| Network Winsock |
|
| Network Winhttp |
|
| Network Info Queried |
|
