Threat Database Trojans Trojan.MSIL.Webshell.CD

Trojan.MSIL.Webshell.CD

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 8,652
Threat Level: 80 % (High)
Infected Computers: 54
First Seen: August 23, 2023
Last Seen: May 12, 2026
OS(es) Affected: Windows

The detection of Trojan.MSIL.Webshell.CD 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 to remove it from your system. Understanding the nature of this threat is crucial in taking the appropriate measures to secure your computer and protect your personal data.

What Is Trojan.MSIL.Webshell.CD?

Trojan.MSIL.Webshell.CD is identified as a Trojan-type threat. Trojans are malicious programs that can cause harm to your computer system. They are often disguised as legitimate software but are designed to allow unauthorized access to your computer, steal data, or disrupt system operations. The name suggests it might be related to webshell activities, which typically involve malicious scripts running on web servers to provide unauthorized access. However, without specific details, it's essential to focus on the general approach to removal and system security.

How Trojan.MSIL.Webshell.CD Operates

Trojan-type threats like Trojan.MSIL.Webshell.CD typically operate by exploiting vulnerabilities in software or by tricking users into installing them. Once installed, they can perform a variety of malicious actions, including data theft, installation of additional malware, or providing backdoor access to attackers. These threats can be particularly dangerous because they can operate silently, without the user's knowledge, making them difficult to detect without proper security software.

Symptoms of Infection

Symptoms of a Trojan infection can vary widely but may include unusual system behavior, such as slow performance, frequent crashes, or unfamiliar programs running in the background. You might also notice changes in your web browser settings or the appearance of unwanted toolbars or extensions. In some cases, there may be no noticeable symptoms at all, which is why regular system scans with reputable security software are essential.

How to Remove Trojan.MSIL.Webshell.CD

  1. Enter Safe Mode with Networking: This will limit the malware's ability to interfere with the removal process. Restart your computer and press the key to enter the boot menu (this key varies by manufacturer but is often F12, F2, or Del). Select Safe Mode with Networking.
  2. Perform a Full Scan with a Reputable Tool: Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system. This can help identify and remove the Trojan and any related malware.
  3. Uninstall Suspicious Programs: Go through your installed programs and remove any that you don't recognize or that were installed around the time your system became infected.
  4. Reset Your Web Browsers: Resetting your web browsers (Google Chrome, Mozilla Firefox, Microsoft Edge) to their default settings can help remove any malicious extensions or settings changes made by the Trojan.
  5. Reboot and Re-scan: 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 fully removed.

Conclusion

Removing Trojan.MSIL.Webshell.CD from your system requires careful and thorough steps to ensure that all components of the malware are eliminated. It's also crucial to take preventive measures to avoid future infections, such as keeping your operating system and software up to date, using strong antivirus software, and being cautious when opening email attachments or downloading software from the internet. By following the removal steps outlined in this report and maintaining good computer hygiene, you can protect your system and your data from threats like Trojan.MSIL.Webshell.CD.

Analysis Report

General information

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

Known Samples

MD5: bb8a222c72428c43adc58a7cc8556bd9
SHA1: f066dc33c987b14596ee2a0b1d33a2900fc47652
SHA256: A17F03B7A8A9F95D207225A5AA1E40F816DFC817F841626D54E4F7F2D15A3BB7
File Size: 96.26 KB, 96256 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 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)
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

Windows PE Version Information

Name Value
Assembly Version 0.0.0.0
File Version 0.0.0.0
Internal Name App_Web_1ummscwp.dll
Original Filename App_Web_1ummscwp.dll
Product Version 0.0.0.0

File Traits

  • .NET
  • dll
  • x86

Block Information

Total Blocks: 60
Potentially Malicious Blocks: 30
Whitelisted Blocks: 14
Unknown Blocks: 16

Visual Map

? 0 0 0 x ? x 0 0 ? 0 0 0 x x x 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 x ? ? ? ? 0 0 0 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
Show More
  • 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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