Threat Database Trojans Trojan.MSIL.Krypt.MBTD

Trojan.MSIL.Krypt.MBTD

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 10,761
Threat Level: 80 % (High)
Infected Computers: 1,479
First Seen: June 13, 2022
Last Seen: March 24, 2026
OS(es) Affected: Windows

Analysis Report

General information

Family Name: Trojan.MSIL.Krypt.MBTD
Signature status: No Signature

Known Samples

MD5: bde63c52362ee555abcc898f36db4b77
SHA1: 8a0514b9c8edfa369c80ed611728e59aa1322474
SHA256: 905A14F04174663C7E259A4A2692D14F397BBF5C23368455266CA5A65D6505F8
File Size: 90.62 KB, 90624 bytes
MD5: 637b646f301d6a3668479792b45cfd2c
SHA1: b0529d5d729998ef3235fffe05af544988de7bb6
SHA256: B3B435A84A7DFE8A399D43F64BC72CDA05608BD250BC99F320973D063D34BA60
File Size: 1.39 MB, 1387520 bytes
MD5: edd46acae634ee37716ca548f7a13edd
SHA1: fd4c0648cadbc07094f9abd551e155002272e8eb
SHA256: 730E87F7482A0F9B2191C15D0DB4BD778688772B00E1C140B715A17753AE0EB8
File Size: 37.89 KB, 37888 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 GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • File is not packed
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  • 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
  • 6.5.4.0
  • 1.8.2.9
  • 1.0.0.0
Comments CmRccService
File Description
  • CmRccService
  • IIS_Server
  • Stumble Mystic
File Version
  • 4.5.3.0
  • 1.8.2.9
  • 1.0.0.0
Internal Name
  • Hiyu02tMyH5OHo
  • IIS_Server.dll
  • Stumble Mystic.dll
Legal Copyright Copyright © 2025
Original Filename
  • Hiyu02tMyH5OHo
  • IIS_Server.dll
  • Stumble Mystic.dll
Product Name
  • CmRccService
  • Stumble Mystic
Product Version
  • 4.5.3.0
  • 1.8.2.9
  • 1.0.0.0

File Traits

  • .NET
  • dll
  • HighEntropy
  • WriteProcessMemory
  • x86

Block Information

Total Blocks: 37
Potentially Malicious Blocks: 33
Whitelisted Blocks: 4
Unknown Blocks: 0

Visual Map

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

Similar Families

  • MSIL.Krypt.MBTD

Files Modified

File Attributes
c:\windows\ime\l13pkvly Generic Write,Read Attributes

Registry Modifications

Key::Value Data API Name
HKLM\software\microsoft\tracing\rasapi32::enablefiletracing RegNtPreCreateKey
HKLM\software\microsoft\tracing\rasapi32::enableautofiletracing RegNtPreCreateKey
HKLM\software\microsoft\tracing\rasapi32::enableconsoletracing RegNtPreCreateKey
HKLM\software\microsoft\tracing\rasapi32::filetracingmask ￿ RegNtPreCreateKey
HKLM\software\microsoft\tracing\rasapi32::consoletracingmask ￿ RegNtPreCreateKey
HKLM\software\microsoft\tracing\rasapi32::maxfilesize  RegNtPreCreateKey
HKLM\software\microsoft\tracing\rasapi32::filedirectory %windir%\tracing RegNtPreCreateKey
HKLM\software\microsoft\tracing\rasmancs::enablefiletracing RegNtPreCreateKey
HKLM\software\microsoft\tracing\rasmancs::enableautofiletracing RegNtPreCreateKey
HKLM\software\microsoft\tracing\rasmancs::enableconsoletracing RegNtPreCreateKey
Show More
HKLM\software\microsoft\tracing\rasmancs::filetracingmask ￿ RegNtPreCreateKey
HKLM\software\microsoft\tracing\rasmancs::consoletracingmask ￿ RegNtPreCreateKey
HKLM\software\microsoft\tracing\rasmancs::maxfilesize  RegNtPreCreateKey
HKLM\software\microsoft\tracing\rasmancs::filedirectory %windir%\tracing RegNtPreCreateKey

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAccessCheck
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcConnectPort
  • ntdll.dll!NtAlpcConnectPortEx
  • ntdll.dll!NtAlpcCreatePortSection
  • ntdll.dll!NtAlpcCreateSectionView
  • ntdll.dll!NtAlpcCreateSecurityContext
  • ntdll.dll!NtAlpcDeleteSecurityContext
  • ntdll.dll!NtAlpcQueryInformation
  • ntdll.dll!NtAlpcQueryInformationMessage
Show More
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtAlpcSetInformation
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtAssociateWaitCompletionPacket
  • ntdll.dll!NtCancelWaitCompletionPacket
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateIoCompletion
  • ntdll.dll!NtCreateKey
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreatePrivateNamespace
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateSemaphore
  • ntdll.dll!NtCreateThreadEx
  • ntdll.dll!NtCreateTimer2
  • ntdll.dll!NtCreateWaitCompletionPacket
  • ntdll.dll!NtCreateWorkerFactory
  • ntdll.dll!NtDelayExecution
  • ntdll.dll!NtDeviceIoControlFile
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtEnumerateKey
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtGetCompleteWnfStateSubscription
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtNotifyChangeKey
  • ntdll.dll!NtOpenDirectoryObject
  • ntdll.dll!NtOpenEvent
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcess
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenProcessTokenEx
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenSemaphore
  • ntdll.dll!NtOpenThread
  • ntdll.dll!NtOpenThreadToken
  • ntdll.dll!NtOpenThreadTokenEx
  • ntdll.dll!NtPowerInformation
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDebugFilterState
  • ntdll.dll!NtQueryDefaultLocale
  • ntdll.dll!NtQueryDirectoryFileEx
  • ntdll.dll!NtQueryEvent
  • 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!NtQueryWnfStateData
  • ntdll.dll!NtQueueApcThread
  • ntdll.dll!NtQueueApcThreadEx2
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtReadRequestData
  • ntdll.dll!NtReadVirtualMemory
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseSemaphore
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtRequestWaitReplyPort
  • ntdll.dll!NtResumeThread
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationKey
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationThread
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtSetTimer2
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtUnsubscribeWnfStateChange
  • ntdll.dll!NtWaitForAlertByThreadId

8 additional items are not displayed above.

User Data Access
  • GetComputerName
  • GetUserDefaultLocaleName
  • GetUserObjectInformation
Other Suspicious
  • AdjustTokenPrivileges
Network Winsock2
  • WSAConnect
  • WSASocket
  • WSAStartup
  • WSAttemptAutodialName
Network Winsock
  • closesocket
  • freeaddrinfo
  • getaddrinfo
  • recv
  • send
  • setsockopt
Network Winhttp
  • WinHttpOpen
Network Info Queried
  • GetAdaptersAddresses
  • GetNetworkParams

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