Trojan.MSIL.Bulz.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.
| Popularity Rank: | 22,299 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 753 |
| First Seen: | September 15, 2021 |
| Last Seen: | May 17, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.MSIL.Bulz.J 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 a step-by-step guide on how to remove it from your computer.
Table of Contents
What Is Trojan.MSIL.Bulz.J?
Trojan.MSIL.Bulz.J is identified as a Trojan-type threat, which is a broad category of malware designed to deceive users by disguising itself as legitimate software. Trojans can allow unauthorized access to a computer, enabling hackers to steal sensitive information, install additional malware, or use the infected computer for malicious activities. The name itself does not specify a known malware family, but its classification as a Trojan indicates its potential capabilities and risks.
How Trojan.MSIL.Bulz.J Operates
Trojans like Trojan.MSIL.Bulz.J typically operate by exploiting vulnerabilities in software or tricking users into installing them. Once installed, they can create backdoors, allowing remote access to the infected computer. They may also download and install other types of malware, such as spyware, adware, or ransomware, further compromising the security and integrity of the system. The specific operations of Trojan.MSIL.Bulz.J would depend on its design and the intentions of its creators, but common goals include data theft, system disruption, or using the infected computer as part of a botnet for distributed attacks.
Symptoms of Infection
Symptoms of a Trojan infection can vary widely but may include unusual system behavior, such as slow performance, frequent crashes, or unfamiliar programs and icons appearing on the desktop. Users may also notice increased network activity, even when no programs are running, or find that their antivirus software is disabled. In some cases, there may be no noticeable symptoms at all, making regular system scans crucial for detecting hidden threats.
How to Remove Trojan.MSIL.Bulz.J
- Enter Safe Mode with Networking: Restart your computer and enter Safe Mode with Networking. This will allow you to use the internet to download removal tools while limiting the malware's ability to interfere.
- Perform a Full Scan: Download and install a reputable anti-malware tool, such as SpyHunter, and perform a full scan of your system. This can help identify and remove Trojan.MSIL.Bulz.J and any other malware that may be present.
- Uninstall Suspicious Programs: Check your list of installed programs for anything that looks suspicious or unfamiliar and uninstall it. Be cautious, as some malware may disguise itself as legitimate software.
- Reset Browsers: If your web browsers (Chrome, Firefox, Edge) have been affected, reset them to their default settings. This can help remove any malicious extensions or settings changes made by the Trojan.
- Reboot and Re-scan: After completing the above steps, reboot your computer and perform another full scan with your anti-malware tool to ensure that all traces of the malware have been removed.
Conclusion
Removing Trojan.MSIL.Bulz.J requires careful and thorough action to ensure that all components of the malware are eliminated from the system. By following the steps outlined in this report and maintaining good computer hygiene practices, such as regularly updating software, using strong antivirus protection, and being cautious with email attachments and downloads, you can significantly reduce the risk of future infections. Remember, vigilance and proactive security measures are key to protecting your digital assets and personal information in today's cyber threat landscape.
Analysis Report
General information
| Family Name: | Trojan.MSIL.Bulz.J |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
54be11213e95f8b31ef11173bd2a0641
SHA1:
417608dc716ba268a2f58298c9cfb6f0fe89a171
SHA256:
6E320A9D57E9D1CADF707C85FD4CAB81744F4AF9A357C71F129EF12DD7298C0E
File Size:
60.93 KB, 60928 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 | 1.4.0.0 |
| File Version | 1.4.0.0 |
| Internal Name | MyNewService.exe |
| Original Filename | MyNewService.exe |
| Product Version | 1.4.0.0 |
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: | 93 |
|---|---|
| Potentially Malicious Blocks: | 4 |
| Whitelisted Blocks: | 45 |
| Unknown Blocks: | 44 |
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\system\controlset001\services\eventlog\dodylog::maxsize | RegNtPreCreateKey | |
| HKLM\system\controlset001\services\eventlog\dodylog::autobackuplogfiles | RegNtPreCreateKey | |
| HKLM\system\controlset001\services\eventlog\dodylog\dodylog::eventmessagefile | C:\Windows\Microsoft.NET\Framework\v4.0.30319\EventLogMessages.dll | RegNtPreCreateKey |
| HKLM\system\controlset001\services\eventlog\dodylog\dodylogsourse::eventmessagefile | C:\Windows\Microsoft.NET\Framework\v4.0.30319\EventLogMessages.dll | 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 |
|
| Service Control |
|