Threat Database Trojans Trojan.MSIL.Krypt.MBDU

Trojan.MSIL.Krypt.MBDU

By CagedTech in Trojans

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 50
First Seen: December 16, 2021
Last Seen: November 21, 2025
OS(es) Affected: Windows

The detection of Trojan.MSIL.Krypt.MBDU on your system indicates a potential security threat that requires immediate attention. This type of malware is designed to compromise the security and integrity of your computer, and if left unchecked, it can lead to serious consequences, including data theft, system crashes, and unauthorized access to your personal information.

What Is Trojan.MSIL.Krypt.MBDU?

Trojan.MSIL.Krypt.MBDU is a type of Trojan horse malware that can infect your computer through various means, such as opening malicious email attachments, visiting compromised websites, or downloading infected software. Once inside, it can hide in the system, evading detection and waiting for the perfect moment to strike. The name "Trojan.MSIL.Krypt.MBDU" suggests that it is a malicious program written in MSIL (Microsoft Intermediate Language) and may have cryptographic capabilities, but the exact nature and behavior of this malware can vary.

How Trojan.MSIL.Krypt.MBDU Operates

Malware like Trojan.MSIL.Krypt.MBDU typically operates by exploiting vulnerabilities in the system or using social engineering tactics to trick users into installing it. Once installed, it can create backdoors, allowing remote access to the infected computer, steal sensitive information, or disrupt system operations. It may also download additional malware or engage in other malicious activities, making it essential to remove it as soon as possible.

Symptoms of Infection

Identifying the symptoms of a Trojan.MSIL.Krypt.MBDU infection can be challenging, as it is designed to remain stealthy. However, some common signs of infection include slow system performance, frequent crashes, unexpected pop-ups, or changes to your browser settings. You may also notice that your antivirus software is disabled or that certain programs are not functioning correctly. If you suspect that your system is infected, it is crucial to take immediate action to prevent further damage.

How to Remove Trojan.MSIL.Krypt.MBDU

  1. Boot your computer in Safe Mode with Networking to prevent the malware from loading and to allow for a clean removal process.
  2. Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system. This will help identify and remove all instances of the malware.
  3. Uninstall any suspicious programs or applications that you do not recognize or that were installed around the time of the infection.
  4. Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or add-ons.
  5. Reboot your computer and run another full scan with your anti-malware tool to ensure that the malware has been completely removed.

Conclusion

Removing Trojan.MSIL.Krypt.MBDU from your system requires careful attention to detail and a thorough understanding of the malware removal process. By following the steps outlined above and using reputable anti-malware tools, you can help protect your computer and personal information from further harm. Remember to always be cautious when opening email attachments, visiting websites, or downloading software, and keep your antivirus software up to date to prevent future infections. If you are unsure about any aspect of the removal process, consider seeking the help of a professional to ensure that your system is completely clean and secure.

Analysis Report

General information

Family Name: Trojan.MSIL.Krypt.MBDU
Signature status: No Signature

Known Samples

MD5: 1200887b1d85df2b75a2caca2b3c1627
SHA1: 3c1689dc4935904b09e53a46c8f3fa8dd8b32ffe
SHA256: F7D0C1CCE8C99C60C5E0E0C602519C4D116819E23E6F2E66BF4E135A81C87634
File Size: 72.70 KB, 72704 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 5.12.1604.10600
File Description MeDoSysSetupUpdate
File Version 5.12.1604.10600
Internal Name MeDoSysSetupUpdate.exe
Legal Copyright Copyright © 2014
Original Filename MeDoSysSetupUpdate.exe
Product Name MeDoSysSetupUpdate
Product Version 5.12.1604.10600

File Traits

  • .NET
  • HighEntropy
  • Installer Version
  • RijndaelManaged
  • x86

Block Information

Total Blocks: 84
Potentially Malicious Blocks: 4
Whitelisted Blocks: 33
Unknown Blocks: 47

Visual Map

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

Windows API Usage

Category API
User Data Access
  • GetComputerNameEx
  • GetUserDefaultLocaleName
  • GetUserObjectInformation
Encryption Used
  • BCryptOpenAlgorithmProvider
Anti Debug
  • IsDebuggerPresent
  • NtQuerySystemInformation

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