Threat Database Backdoors Backdoor.MSIL.Agent.SKT

Backdoor.MSIL.Agent.SKT

By CagedTech in Backdoors

Threat Scorecard

Threat Level: 60 % (Medium)
Infected Computers: 8
First Seen: June 12, 2025
Last Seen: December 2, 2025
OS(es) Affected: Windows

The detection of Backdoor.MSIL.Agent.SKT indicates that your system has been compromised by a potentially malicious threat. This backdoor threat is designed to allow unauthorized access to your system, which can lead to a range of serious security issues. In this report, we will provide an overview of what Backdoor.MSIL.Agent.SKT is, how it operates, and the steps you can take to remove it from your system.

What Is Backdoor.MSIL.Agent.SKT?

Backdoor.MSIL.Agent.SKT is a type of backdoor threat that is designed to provide unauthorized access to a compromised system. Backdoor threats are a type of malware that can allow attackers to access a system remotely, without the knowledge or consent of the system's owner. These threats can be used to steal sensitive information, install additional malware, or take control of the system for malicious purposes.

How Backdoor.MSIL.Agent.SKT Operates

Backdoor threats like Backdoor.MSIL.Agent.SKT typically operate by creating a covert communication channel between the compromised system and a command and control server. This channel can be used to send and receive commands, as well as to transmit stolen data or install additional malware. The threat may also use various techniques to evade detection, such as code obfuscation or anti-debugging measures.

In general, backdoor threats can be spread through a range of means, including phishing emails, drive-by downloads, or exploited vulnerabilities. Once installed, the threat can remain dormant for a period of time, making it difficult to detect. However, there are often signs that can indicate the presence of a backdoor threat, such as unusual network activity or changes to system settings.

Symptoms of Infection

Systems infected with Backdoor.MSIL.Agent.SKT may exhibit a range of symptoms, including unusual network activity, slow system performance, or unexpected changes to system settings. You may also notice that your system is behaving erratically, or that you are receiving unexpected error messages. In some cases, the threat may also cause your system to crash or become unresponsive.

It's worth noting that backdoor threats can be difficult to detect, and may not always exhibit obvious symptoms. Therefore, it's essential to have a reputable security solution in place, and to regularly scan your system for signs of malware.

How to Remove Backdoor.MSIL.Agent.SKT

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

Conclusion

The detection of Backdoor.MSIL.Agent.SKT is a serious security issue that requires immediate attention. By following the steps outlined in this report, you can help to remove the threat from your system and prevent further damage. It's essential to remain vigilant and to take proactive steps to protect your system from malware, including keeping your operating system and software up to date, using strong passwords, and avoiding suspicious emails or downloads.

Remember, the removal of a backdoor threat is just the first step in securing your system. It's also essential to take steps to prevent re-infection, such as installing a reputable security solution and regularly scanning your system for signs of malware. By taking a proactive approach to security, you can help to protect your system and your personal data from the latest threats.

Analysis Report

General information

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

Known Samples

MD5: 44a4ead8dfad46202e82c28078b6a398
SHA1: eae179b72763ca3ee29711133e375c6e47a1e4cc
SHA256: F3C27D81A3E36075F1B1A2CDCCB62665774FAE87FC24AFEBC2F55274B09E0964
File Size: 15.87 KB, 15872 bytes
MD5: 13cc2a8ea2ac3f761e79e7f52dc0ca62
SHA1: 70c918a8f9db3459a74cf15d615f3798457ecab1
SHA256: 992859BAE0FE0560B3A8461293E29F679A478B18607524F76C7A25BC83979B70
File Size: 14.34 KB, 14336 bytes
MD5: 2d6658c0fe2600681bbd29bfc31db595
SHA1: d7030b0943de696b5cf7c50d4abe4638e2e2dbcf
SHA256: FDDEF82D1783C20EE1809FFC8161FF1E122EED1E253DF3A2770236308016E1E7
File Size: 14.85 KB, 14848 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 1.0.0.0
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Company Name
  • Incompetence
  • Medcalf
  • Turk
File Description
  • Barnet
  • Cater
  • Insider
File Version 1.0.0.0
Internal Name
  • Incompetence.exe
  • Medcalf.exe
  • Turk.exe
Legal Copyright Copyright © 2025
Original Filename
  • Incompetence.exe
  • Medcalf.exe
  • Turk.exe
Product Name
  • Barnet
  • Cater
  • Insider
Product Version 1.0.0.0

File Traits

  • .NET
  • x86

Block Information

Total Blocks: 27
Potentially Malicious Blocks: 6
Whitelisted Blocks: 19
Unknown Blocks: 2

Visual Map

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

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreatePrivateNamespace
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateSemaphore
  • ntdll.dll!NtCreateThreadEx
Show More
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtEnumerateKey
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenDirectoryObject
  • ntdll.dll!NtOpenEvent
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcess
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenThreadToken
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDefaultLocale
  • ntdll.dll!NtQueryDirectoryFileEx
  • ntdll.dll!NtQueryFullAttributesFile
  • ntdll.dll!NtQueryInformationFile
  • ntdll.dll!NtQueryInformationJobObject
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryLicenseValue
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQuerySecurityObject
  • ntdll.dll!NtQuerySystemInformation
  • ntdll.dll!NtQuerySystemInformationEx
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtReadRequestData
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtResumeThread
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationKey
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationThread
  • 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!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWorkerFactoryWorkerReady
  • ntdll.dll!NtWriteFile
  • UNKNOWN
User Data Access
  • GetComputerNameEx
  • GetUserDefaultLocaleName
  • GetUserObjectInformation

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