Threat Database Trojans Trojan.MSIL.Krypt.NABB

Trojan.MSIL.Krypt.NABB

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 11,386
Threat Level: 80 % (High)
Infected Computers: 1,080
First Seen: January 5, 2023
Last Seen: July 14, 2026
OS(es) Affected: Windows

The detection of Trojan.MSIL.Krypt.NABB 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 operation, symptoms, and most importantly, the steps you can take to remove it from your computer.

What Is Trojan.MSIL.Krypt.NABB?

Trojan.MSIL.Krypt.NABB is identified as a Trojan-type threat. Trojans are malicious programs that can allow unauthorized access to a computer, leading to a variety of harmful activities. The name itself suggests it's written in MSIL (Microsoft Intermediate Language), which is a platform-agnostic intermediate representation of the .NET Framework. The "Krypt" part of the name might imply some form of encryption or obfuscation used by the malware, making it harder to detect and analyze. Understanding the nature of this threat is crucial for taking appropriate measures to protect your system and data.

How Trojan.MSIL.Krypt.NABB Operates

Trojan-type malware, including Trojan.MSIL.Krypt.NABB, typically operates by disguising itself as legitimate software to gain access to a computer system. Once inside, it can perform a variety of malicious activities, such as stealing sensitive information, installing additional malware, or providing backdoor access to hackers. The specific operations of Trojan.MSIL.Krypt.NABB can vary, but its primary goal is to compromise the security and integrity of the infected system. It may use various tactics to evade detection, including encrypting its communications or hiding in legitimate system processes.

Symptoms of Infection

The symptoms of a Trojan.MSIL.Krypt.NABB infection can be subtle and may not be immediately apparent. Common signs include unusual system behavior, such as unexpected crashes, slow performance, or unfamiliar programs and icons appearing on your desktop. You might also notice increased network activity, even when you're not using the internet, or find that your antivirus software is disabled. Sometimes, Trojans can operate silently, making regular scans with up-to-date antivirus software crucial for detection.

How to Remove Trojan.MSIL.Krypt.NABB

  1. Boot your computer in Safe Mode with Networking to limit the malware's ability to interfere with the removal process.
  2. Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all traces of the Trojan.
  3. Uninstall any suspicious programs or applications that you do not recognize or that were installed around the time the malware was detected.
  4. Reset your web browsers (Chrome, Firefox, Edge) to their default settings to remove any malicious extensions or settings changes made by the Trojan.
  5. After completing the above steps, reboot your computer and perform another full scan with your anti-malware tool to ensure that the threat has been completely removed.

Conclusion

Removing Trojan.MSIL.Krypt.NABB from your system requires careful and thorough action to ensure all components of the malware are eliminated. By following the steps outlined in this report and maintaining vigilant cybersecurity practices, such as regularly updating your operating system and antivirus software, you can protect your computer from future threats. Remember, prevention is key, so always be cautious when downloading software or opening email attachments from unknown sources.

Analysis Report

General information

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

Known Samples

MD5: b7a9cd254f511b0873fe0cd97cde0a4a
SHA1: adb7de4479cc9628e7fb4c8726344f5c06c92dad
SHA256: A875D4F7DEE6271EDB043090BFA977F03351CCC8BC527CF7DA5A392D818A0051
File Size: 1.22 MB, 1222656 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)

Windows PE Version Information

Name Value
Assembly Version 1.0.0.0
Comments DH@<EA2I8HD8B<3>9H>
Company Name I7F<I;5A4@5HHFE@D@?JAJ5
File Description 8G5JC;<52=?IH:D2775:
File Version 22.5.3.133
Internal Name 444.exe
Legal Copyright Copyright © 2017 I7F<I;5A4@5HHFE@D@?JAJ5. All rights reserved.
Original Filename 444.exe
Product Name 8G5JC;<52=?IH:D2775:
Product Version 22.5.3.133

File Traits

  • .NET
  • HighEntropy
  • NewLateBinding
  • x86

Block Information

Total Blocks: 1,539
Potentially Malicious Blocks: 276
Whitelisted Blocks: 826
Unknown Blocks: 437

Visual Map

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

Windows API Usage

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

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