Threat Database Trojans Trojan.MSIL.Bulz.J

Trojan.MSIL.Bulz.J

By CagedTech in Trojans

Threat Scorecard

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.

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

  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. 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

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

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

Total Blocks: 93
Potentially Malicious Blocks: 4
Whitelisted Blocks: 45
Unknown Blocks: 44

Visual Map

x 0 0 0 0 0 ? x x ? ? 0 0 0 0 ? ? 0 ? 0 0 ? ? ? ? ? 0 ? ? ? ? 0 0 ? ? ? ? ? 0 0 ? 0 0 0 0 0 ? 0 ? ? 0 ? ? ? ? ? ? ? ? ? ? ? ? ? 0 0 0 ? 0 0 x 0 ? ? 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ? 0 ? ? ?
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Registry Modifications

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

Category API
User Data Access
  • GetUserDefaultLocaleName
  • GetUserObjectInformation
Service Control
  • StartServiceCtrlDispatcher

Related Posts

Trending

Most Viewed

Loading...