Threat Database Trojans Trojan.MSIL.Krypt.FR

Trojan.MSIL.Krypt.FR

By CagedTech in Trojans

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 6
First Seen: August 12, 2024
Last Seen: December 21, 2025
OS(es) Affected: Windows

The detection of Trojan.MSIL.Krypt.FR indicates that a potentially malicious program has been identified on your system. This detection name suggests a type of Trojan threat, which is a broad category of malware designed to deceive users about its true intentions. Trojans can be used for a variety of malicious purposes, including data theft, espionage, and the unauthorized control of an infected computer. Understanding what Trojan.MSIL.Krypt.FR is and how it operates is crucial for taking appropriate steps to protect your system and data.

What Is Trojan.MSIL.Krypt.FR?

Trojan.MSIL.Krypt.FR, as indicated by its name, falls under the Trojan category of malware. Trojans are known for their ability to disguise themselves as legitimate software, making them difficult to detect without proper security measures. The name suggests it may be related to encryption or cryptographic functions, possibly indicating that it could be involved in ransomware activities or other forms of malicious encryption. However, without specific details, it's essential to approach this threat with a broad understanding of Trojan malware behaviors and impacts.

How Trojan.MSIL.Krypt.FR Operates

Trojans, in general, operate by masquerading as useful applications or software. Once installed, they can open backdoors on the infected system, allowing attackers to access the system remotely. This access can be used for various malicious activities, including stealing sensitive information, installing additional malware, or using the infected system as part of a botnet for distributed denial-of-service (DDoS) attacks. The specific operations of Trojan.MSIL.Krypt.FR would depend on its design and the intentions of its creators, which could range from financial gain to disruption of service.

Symptoms of Infection

Symptoms of a Trojan infection can vary widely, depending on the malware's purpose. Common indicators include unexpected changes to system settings, unusual network activity, slow system performance, and the appearance of unwanted programs or files. In some cases, infections may not exhibit noticeable symptoms immediately, making regular system monitoring and the use of antivirus software crucial for early detection.

How to Remove Trojan.MSIL.Krypt.FR

  1. Enter Safe Mode with Networking to limit the malware's ability to interfere with the removal process. This mode allows you to use the internet to download necessary tools while restricting the execution of potentially malicious programs.
  2. Perform a full scan of your system using a reputable antivirus tool, such as SpyHunter. This step is critical for identifying and removing all components of the malware.
  3. Uninstall any suspicious programs that were installed around the time of the infection. Be cautious and only remove programs that you are certain are not necessary for your system's operation.
  4. Reset your web browsers (Chrome, Firefox, Edge, etc.) to their default settings. This can help remove any malicious extensions or settings changes made by the Trojan.
  5. Reboot your system and perform another full scan to ensure that the malware has been completely removed. This final scan is a precautionary measure to verify the system's cleanliness.

Conclusion

The detection and removal of Trojan.MSIL.Krypt.FR require careful attention to system security and a thorough understanding of malware removal procedures. By following the steps outlined and maintaining a proactive approach to system security, including regular updates, backups, and the use of reputable antivirus software, you can significantly reduce the risk of future infections. Remember, prevention is key, and staying informed about the latest threats and security best practices is essential in today's digital landscape.

Analysis Report

General information

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

Known Samples

MD5: 85e052528530904e50858f466e99ba28
SHA1: 9dbabb2b9031abf0610228d789bfc68806dc019e
SHA256: 8FCB1A2BD994CFCE18F7C2AB0F7D019135B8E2E3CA52150154099FA634D0FD01
File Size: 73.22 KB, 73216 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • 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 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)
Show More
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

Windows PE Version Information

Name Value
Assembly Version 1.0.0.0
File Description Loader
File Version 1.0.0.0
Internal Name Loader.exe
Legal Copyright Copyright © 2022
Original Filename Loader.exe
Product Name Loader
Product Version 1.0.0.0

File Traits

  • .NET
  • Reactor
  • RijndaelManaged
  • VirtualQueryEx
  • WriteProcessMemory
  • x64

Block Information

Total Blocks: 67
Potentially Malicious Blocks: 2
Whitelisted Blocks: 54
Unknown Blocks: 11

Visual Map

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

Similar Families

  • MSIL.Gamehack.BOT
  • MSIL.Gamehack.BOZ
  • MSIL.Krypt.FR
  • NekoStealer.B
  • NekoStealer.JA

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreatePrivateNamespace
  • ntdll.dll!NtCreateSection
Show More
  • ntdll.dll!NtCreateSemaphore
  • ntdll.dll!NtCreateThreadEx
  • ntdll.dll!NtDeviceIoControlFile
  • 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!NtReleaseMutant
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtResumeThread
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationFile
  • ntdll.dll!NtSetInformationKey
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationThread
  • ntdll.dll!NtSetInformationVirtualMemory
  • 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!NtWriteFile
  • UNKNOWN
User Data Access
  • GetComputerNameEx
  • GetUserDefaultLocaleName
  • GetUserObjectInformation
Process Manipulation Evasion
  • ReadProcessMemory
Encryption Used
  • BCryptOpenAlgorithmProvider

Related Posts

Trending

Most Viewed

Loading...