Threat Database Trojans Trojan.MSIL.Webshell.BX

Trojan.MSIL.Webshell.BX

By CagedTech in Trojans

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 7
First Seen: July 7, 2025
Last Seen: April 14, 2026
OS(es) Affected: Windows

The detection of Trojan.MSIL.Webshell.BX indicates that your system has been compromised by a potentially malicious threat. This type of threat is designed to provide unauthorized access to your system, allowing attackers to steal sensitive information, disrupt operations, or use your system as a launching point for further malicious activities. It is essential to take immediate action to remove this threat and prevent any potential damage.

What Is Trojan.MSIL.Webshell.BX?

Trojan.MSIL.Webshell.BX is a type of Trojan horse malware that can be used to compromise a system and provide unauthorized access to attackers. The name "Trojan.MSIL.Webshell.BX" suggests that it is a.NET-based (MSIL) threat that may be related to web shells, which are malicious scripts used to remotely access and control a compromised system. However, without further information, it is difficult to determine the exact nature and behavior of this specific threat.

How Trojan.MSIL.Webshell.BX Operates

Typically, Trojan horse malware like Trojan.MSIL.Webshell.BX operates by disguising itself as a legitimate program or file, allowing it to evade detection and gain access to a system. Once inside, the malware can be used to steal sensitive information, install additional malware, or provide a backdoor for remote access. The exact mechanisms used by Trojan.MSIL.Webshell.BX are unknown, but it is likely that it uses common tactics such as exploiting vulnerabilities, using social engineering, or disguising itself as a legitimate program to infect a system.

Symptoms of Infection

Systems infected with Trojan.MSIL.Webshell.BX may exhibit a range of symptoms, including unusual network activity, slow system performance, or unexplained changes to system settings. In some cases, the malware may not exhibit any noticeable symptoms, making it difficult to detect without the use of specialized security software. If you suspect that your system has been infected with Trojan.MSIL.Webshell.BX, it is essential to take immediate action to remove the threat and prevent any potential damage.

How to Remove Trojan.MSIL.Webshell.BX

  1. Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow for easier removal.
  2. Use a reputable security tool, such as SpyHunter, to perform a full scan of your system and detect any malicious files or programs.
  3. Uninstall any suspicious programs or applications that may be related to the malware.
  4. Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or settings.
  5. Reboot your system and perform a follow-up scan to ensure that the threat has been completely removed.

Conclusion

The detection of Trojan.MSIL.Webshell.BX is a serious security issue that requires immediate attention. By following the steps outlined above, you can remove this threat and prevent any potential damage to your system. It is also essential to take proactive measures to prevent future infections, such as keeping your operating system and security software up to date, using strong passwords, and being cautious when opening email attachments or clicking on links from unknown sources. By staying vigilant and taking the necessary precautions, you can help protect your system and sensitive information from malicious threats like Trojan.MSIL.Webshell.BX.

Analysis Report

General information

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

Known Samples

MD5: 22018bf8549370d5933c0f24fa04a683
SHA1: 048b50a227a8122c3b1804f1e6e218a331e2e24f
SHA256: 86CFAB17A6EC232AA0C713A1B9A64C445C952FA7F88220379FDCCE1321F0E2A4
File Size: 242.69 KB, 242688 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: 649
Potentially Malicious Blocks: 277
Whitelisted Blocks: 190
Unknown Blocks: 182

Visual Map

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

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAccessCheck
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
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  • 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!NtWaitForSingleObject
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWriteFile
  • UNKNOWN

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