Threat Database Backdoors Backdoor.MSIL.Agent.LK

Backdoor.MSIL.Agent.LK

By CagedTech in Backdoors

Threat Scorecard

Threat Level: 60 % (Medium)
Infected Computers: 3
First Seen: June 8, 2023
Last Seen: January 6, 2026
OS(es) Affected: Windows

The detection of Backdoor.MSIL.Agent.LK on your system indicates a potential security threat that requires immediate attention. This detection name suggests a backdoor threat, which is a type of malware that allows unauthorized access to your computer. It is essential to understand the nature of this threat and take prompt action to remove it and secure your system.

What Is Backdoor.MSIL.Agent.LK?

Backdoor.MSIL.Agent.LK is a detected threat that falls under the category of backdoor malware. Backdoors are malicious programs designed to bypass security mechanisms and allow unauthorized access to a compromised computer. This can lead to a range of malicious activities, including data theft, installation of additional malware, and exploitation of system resources for malicious purposes. The specifics of how Backdoor.MSIL.Agent.LK operates can vary, but its primary function is to provide a covert entry point for attackers.

How Backdoor.MSIL.Agent.LK Operates

Backdoor malware, like Backdoor.MSIL.Agent.LK, typically operates by establishing a communication channel between the compromised computer and a command and control (C2) server controlled by the attackers. This channel allows attackers to issue commands, steal data, or install additional malware. The operation of backdoors can be sophisticated, often involving evasion techniques to avoid detection by security software. Understanding the operational mechanisms of backdoors is crucial for developing effective removal strategies.

Symptoms of Infection

Symptoms of a backdoor infection can be subtle and may not always be immediately apparent. However, signs may include unusual network activity, slow system performance, unexpected changes to system settings, or the presence of unfamiliar programs. In some cases, the system may become unstable, or applications may crash frequently. It's also possible for a system to be infected without displaying any noticeable symptoms, making regular security scans essential for detection.

How to Remove Backdoor.MSIL.Agent.LK

  1. Enter Safe Mode with Networking to limit the malware's ability to interfere with the removal process. This mode allows you to use the internet to download necessary tools while minimizing the risk of the malware spreading or communicating with its C2 server.
  2. Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter. Ensure the tool is updated with the latest definitions to increase the chances of detecting and removing the malware.
  3. Uninstall suspicious programs that were installed around the time the malware was detected. Be cautious and only remove programs that you are certain are malicious or unnecessary.
  4. Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings. This can help remove any malicious extensions or settings changes made by the malware.
  5. Reboot your system and perform another scan to ensure that the malware has been completely removed. This step is crucial as some malware may not be fully removable until the system is restarted.

Conclusion

The removal of Backdoor.MSIL.Agent.LK requires careful and immediate action to prevent further compromise of your system. By following the steps outlined above and maintaining good security practices, such as regularly updating your operating system and security software, you can help protect your computer from backdoor threats and other types of malware. Remember, prevention and vigilance are key components of cybersecurity, and staying informed about potential threats is essential for safeguarding your digital assets.

Analysis Report

General information

Family Name: Backdoor.MSIL.Agent.LK
Signature status: No Signature

Known Samples

MD5: 13fc688119e922f9e9b60e1f73405aa9
SHA1: 7a18fcc701954cc0ca5f7e0c4826556721277e99
SHA256: 51445F19524D13D83EFE26F2A58B5302DF41F567A0B3BE385DDE0F6710B78949
File Size: 10.24 KB, 10240 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 7.0.27.0
File Description MCS.Starter
File Version 7.0.27
Internal Name MCS.Starter.exe
Legal Copyright Copyright 2025
Original Filename MCS.Starter.exe
Product Name MCS.Starter
Product Version 7.0.27

File Traits

  • .NET
  • x86

Block Information

Total Blocks: 4
Potentially Malicious Blocks: 3
Whitelisted Blocks: 1
Unknown Blocks: 0

Visual Map

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

Similar Families

  • MSIL.Agent.LK

Windows API Usage

Category API
User Data Access
  • GetComputerNameEx
  • GetUserDefaultLocaleName
  • GetUserObjectInformation

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