Threat Database Trojans Trojan.MSIL.Webshell.DJ

Trojan.MSIL.Webshell.DJ

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 14,999
Threat Level: 80 % (High)
Infected Computers: 27
First Seen: March 6, 2025
Last Seen: May 31, 2026
OS(es) Affected: Windows

The detection of Trojan.MSIL.Webshell.DJ indicates that a potentially malicious program has been identified on your system. This name suggests a type of Trojan horse malware, which is designed to deceive users into installing it by disguising itself as a legitimate program. The presence of such malware can lead to various security issues, including unauthorized access to your system, data theft, and further malware infections. It is essential to understand the nature of this threat and take appropriate steps to remove it and secure your system.

What Is Trojan.MSIL.Webshell.DJ?

Trojan.MSIL.Webshell.DJ, as indicated by its name, appears to be related to webshell exploits, which are malicious scripts or programs that attackers use to gain access to a web server or a system through a web application. These scripts can allow attackers to execute commands, steal data, or upload more malware. The "MSIL" part of the name refers to Microsoft Intermediate Language, which is a platform-agnostic, object-oriented programming language used by the .NET Framework. This suggests that the malware might be designed to operate within the .NET environment, potentially allowing it to interact with or exploit vulnerabilities in .NET applications.

How Trojan.MSIL.Webshell.DJ Operates

Trojan horses like Trojan.MSIL.Webshell.DJ typically operate by disguising themselves as useful or harmless programs. Once installed, they can open a backdoor on the infected system, allowing remote access to the attackers. This access can be used for a variety of malicious purposes, including data theft, installing additional malware, or using the infected system as part of a botnet for distributed denial-of-service (DDoS) attacks or spamming. The webshell component of this malware suggests a focus on exploiting web applications or servers, potentially to gain access to sensitive data or to use the infected system as a stepping stone for further attacks.

Symptoms of Infection

Symptoms of an infection can vary widely, depending on the specific goals of the malware and the actions taken by the attackers. Common signs include unusual system behavior, such as unexpected crashes, slow performance, or the appearance of unfamiliar programs or icons. You might also notice increased network activity, even when you're not actively using the internet, or receive warnings from your security software. In some cases, the infection might not produce noticeable symptoms, making regular scans with up-to-date security software crucial for detection.

How to Remove Trojan.MSIL.Webshell.DJ

  1. Boot your system into 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 components of the Trojan.
  3. Uninstall any suspicious programs that you do not recognize or that were installed around the time of the infection.
  4. Reset your web browsers (Chrome, Firefox, Edge, etc.) to their default settings to remove any malicious extensions or settings changes made by the malware.
  5. Reboot your system and run another full scan with your anti-malware tool to ensure that all traces of the malware have been removed.

Conclusion

The removal of Trojan.MSIL.Webshell.DJ requires careful and thorough steps to ensure that all components of the malware are eliminated from your system. After removal, it's essential to maintain good security practices, including keeping your operating system and software up to date, using strong, unique passwords, and regularly scanning your system for malware. Additionally, being cautious when opening email attachments or downloading software from the internet can help prevent future infections. By taking these measures, you can help protect your system and data from malicious threats like Trojan.MSIL.Webshell.DJ.

Analysis Report

General information

Family Name: Trojan.MSIL.Webshell.DJ
Signature status: No Signature

Known Samples

MD5: c399485049d48a7409b7eb53817aa9c2
SHA1: 3bcb9e59e303533ba1c7ac32f6ff3d5df5de1fef
SHA256: E0BBAA52F7D39D412165BF2E7A6D5F1125A33FD11139171CFF6F07C35CCC82D9
File Size: 69.12 KB, 69120 bytes
MD5: 7a100073ffea4448a5a0766c15c5b96d
SHA1: 5a6e992a34d5f00a915d50663c87affac32c3b5c
SHA256: B533C3594E1975157D3FCAE3F022FA4F24712E5D1D535358F9251CCA8F96281A
File Size: 69.12 KB, 69120 bytes
MD5: 4fb26c5dd751ff8cf9e0dde52aef2e96
SHA1: 3f5ccb946240d007131dc9df5a6920e4c97a3311
SHA256: 1259AC907E73AE9C1A92CC14E2A3A74D710BAA64E812E875E79F8BB1AE3DF36E
File Size: 69.12 KB, 69120 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 console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
  • File is either console or GUI application
  • 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)

File Traits

  • .NET
  • dll
  • x86

Block Information

Total Blocks: 48
Potentially Malicious Blocks: 17
Whitelisted Blocks: 31
Unknown Blocks: 0

Visual Map

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

Similar Families

  • MSIL.Agent.ASGC
  • MSIL.Webshell.BH
  • MSIL.Webshell.BM
  • MSIL.Webshell.DA
  • MSIL.Webshell.DI
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  • MSIL.Webshell.DJ

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAccessCheck
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtFreeVirtualMemory
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  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenProcessTokenEx
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenSemaphore
  • ntdll.dll!NtOpenThreadTokenEx
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDebugFilterState
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtQueryWnfStateData
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseSemaphore
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtRequestWaitReplyPort
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtWaitForAlertByThreadId
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWriteFile
  • UNKNOWN

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