Threat Database Trojans Trojan.MSIL.Krypt.KLFG

Trojan.MSIL.Krypt.KLFG

By CagedTech in Trojans

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 1
First Seen: November 14, 2025
Last Seen: December 28, 2025
OS(es) Affected: Windows

The detection of Trojan.MSIL.Krypt.KLFG on your system indicates a potential security threat that requires immediate attention. This report provides an overview of the threat, its operating methods, symptoms of infection, and step-by-step guidance on how to remove it from your computer.

What Is Trojan.MSIL.Krypt.KLFG?

Trojan.MSIL.Krypt.KLFG is a type of malware that falls under the category of Trojans, which are malicious programs designed to gain unauthorized access to a computer system. The name suggests it is written in MSIL (Microsoft Intermediate Language), which is a platform-agnostic intermediate representation of the.NET Common Intermediate Language (CIL). The "Krypt" part of the name may imply that it involves some form of encryption or obfuscation to evade detection or to perform its malicious activities. Understanding the exact nature of this threat is crucial for effective removal and prevention of future infections.

How Trojan.MSIL.Krypt.KLFG Operates

Like other Trojans, Trojan.MSIL.Krypt.KLFG is designed to infiltrate a system without being detected, often by disguising itself as a legitimate program or attachment. Once inside, it can perform a variety of malicious actions, such as data theft, installation of additional malware, or providing a backdoor for remote access by attackers. The specifics of its operation can vary, but the ultimate goal is typically to compromise the security and integrity of the infected system for the benefit of the malware authors.

Symptoms of Infection

The symptoms of a Trojan.MSIL.Krypt.KLFG infection can be subtle and may not immediately indicate the presence of malware. Common signs include unusual system behavior, such as slow performance, frequent crashes, or unfamiliar programs and icons. Additionally, users might notice unauthorized changes to their system settings, unexpected pop-ups, or suspicious network activity. Since Trojans can be designed to remain stealthy, some infections might not exhibit noticeable symptoms until significant damage has been done.

How to Remove Trojan.MSIL.Krypt.KLFG

  1. Boot into Safe Mode with Networking: This will help prevent the malware from loading and give you a cleaner environment to perform the removal steps.
  2. Perform a Full Scan with a Reputable Tool: Utilize a trusted anti-malware tool, such as SpyHunter, to scan your system thoroughly. This can help identify and remove the Trojan and any associated 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 the infection was detected.
  4. Reset Your Browsers: Trojans can often affect web browsers, so resetting Chrome, Firefox, Edge, or any other browser you use to their default settings can help remove malicious extensions or settings.
  5. Reboot and Re-scan: After completing the above steps, restart your computer and perform another full scan with your anti-malware tool to ensure that all traces of the malware have been removed.

Conclusion

Removing Trojan.MSIL.Krypt.KLFG requires a methodical approach to ensure that all components of the malware are eliminated from your system. By following the steps outlined in this report and maintaining vigilance through regular system scans and safe computing practices, you can protect your computer from future infections and keep your data secure. Remember, prevention is key, so always be cautious when opening email attachments, downloading software, or clicking on links from unknown sources.

Analysis Report

General information

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

Known Samples

MD5: 41b15d238b3de8283d674ae5c4e48a17
SHA1: 3b0cf230dfa18b3d9428fb24c96778f0663b9589
SHA256: 8B5B430F073AEC4BA612F389A13824633F90836AED24F7DB28EBBF4C56113D70
File Size: 694.27 KB, 694272 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 relocations information
  • File doesn't have security information
  • File is .NET application
  • File is 64-bit executable
  • 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 1.0.0.0
File Version 1.0.0.0
Internal Name Sazhqudici.exe
Original Filename Sazhqudici.exe
Product Version 1.0.0.0

File Traits

  • .NET
  • GenKrypt
  • HighEntropy
  • x64

Block Information

Total Blocks: 8
Potentially Malicious Blocks: 3
Whitelisted Blocks: 2
Unknown Blocks: 3

Visual Map

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

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAccessCheck
  • ntdll.dll!NtAlpcConnectPortEx
  • ntdll.dll!NtAlpcQueryInformation
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtAssociateWaitCompletionPacket
  • ntdll.dll!NtCancelTimer2
  • ntdll.dll!NtCancelWaitCompletionPacket
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
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  • ntdll.dll!NtCompareSigningLevels
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateIoCompletion
  • 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!NtDeviceIoControlFile
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtEnumerateKey
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFlushProcessWriteBuffers
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtGetCachedSigningLevel
  • ntdll.dll!NtGetContextThread
  • 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!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!NtQueryWnfStateData
  • 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!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtSetTimer2
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtSuspendThread
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtUnsubscribeWnfStateChange
  • ntdll.dll!NtWaitForMultipleObjects
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWorkerFactoryWorkerReady
  • ntdll.dll!NtWriteFile
  • ntdll.dll!NtYieldExecution
  • UNKNOWN
User Data Access
  • GetUserDefaultLocaleName
  • GetUserName
  • GetUserObjectInformation
Encryption Used
  • BCryptOpenAlgorithmProvider
Anti Debug
  • IsDebuggerPresent
Other Suspicious
  • AdjustTokenPrivileges

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