Threat Database Trojans Trojan.MSIL.Krypt.GDTB

Trojan.MSIL.Krypt.GDTB

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 8,406
Threat Level: 80 % (High)
Infected Computers: 43
First Seen: July 28, 2025
Last Seen: July 18, 2026
OS(es) Affected: Windows

The detection of Trojan.MSIL.Krypt.GDTB 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 operational mechanisms, symptoms of infection, and most importantly, steps to remove it from your system. It's crucial to approach this situation with a clear understanding of the risks and the necessary actions to mitigate them.

What Is Trojan.MSIL.Krypt.GDTB?

Trojan.MSIL.Krypt.GDTB is identified as a Trojan-type threat. Trojans are malicious programs that can cause significant harm to computer systems. They are designed to bypass security mechanisms and can lead to unauthorized access, data theft, and system compromise. The name suggests it may involve encryption or obfuscation techniques, but without specific details, it's essential to focus on general removal and protection strategies.

How Trojan.MSIL.Krypt.GDTB Operates

Generally, Trojans operate by disguising themselves as legitimate software or files to trick users into installing them. Once installed, they can create backdoors for remote access, steal sensitive information, or install additional malware. They might also exploit system vulnerabilities to spread or to evade detection. Understanding how Trojans work is key to preventing future infections and removing current threats.

Symptoms of Infection

Symptoms of a Trojan infection can vary widely but may include unusual system behavior such as slow performance, frequent crashes, or pop-ups. You might also notice unfamiliar programs or toolbars in your browser, or find that your browser's homepage has changed without your consent. Sometimes, Trojans can operate silently, making them difficult to detect without proper security software.

How to Remove Trojan.MSIL.Krypt.GDTB

  1. Boot your computer in Safe Mode with Networking. This will help prevent the malware from loading and give you a cleaner environment to work in.
  2. 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 other malware that might be present.
  3. Manually uninstall any suspicious programs that you don't recognize or that were installed around the time you suspect the infection occurred.
  4. Reset your web browsers (Chrome, Firefox, Edge) to their default settings. This can help remove any malicious extensions or settings that the Trojan might have altered.
  5. After taking these steps, reboot your computer and perform another scan with your anti-malware tool to ensure that the threat has been fully removed.

Conclusion

Removing Trojan.MSIL.Krypt.GDTB requires a methodical approach to ensure your system is thoroughly cleaned and protected against future threats. It's essential to stay vigilant and maintain up-to-date security software to prevent re-infection. Regularly backing up important data and being cautious when opening emails or downloading software from the internet can also help protect your system. By following the steps outlined in this report and maintaining good security practices, you can help safeguard your computer and personal data from malware threats.

Analysis Report

General information

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

Known Samples

MD5: adc5c76afd1a38c2825132133c886a67
SHA1: c883f9847d9a1f6b10dfa90c82f6cf8161601b01
SHA256: 4F3BDDCC84341075A10A2582071448E4D00B20A7729C5CFD419BDC7EDC174A45
File Size: 641.54 KB, 641536 bytes
MD5: 70ad555faf92b223ae4beb349c5eda79
SHA1: 11e77a9156ac3cff67235b9a1b8360c7370a0a95
SHA256: A8B6FC5C0F0BD16F59DA46A402AE27DE46EE6C7F9E71C7ABB2B1B29DF3494936
File Size: 639.49 KB, 639488 bytes
MD5: 50bb866b60a7447a6dc2137f9bdaa53e
SHA1: 9a2b28ab30b09b7e0b46acade03e22e7e894e851
SHA256: FAD44BF5E387D8964560B10F57429F3EC54B3037EA698C6FBC9E291D8832E3F1
File Size: 640.00 KB, 640000 bytes
MD5: aed66a6bf1490d7803ce551f842be73a
SHA1: 0af8161b439863742ae6d6dc4c577828fd650ead
SHA256: 0FDAA33053B1FC04A69F52B70B238BF08CDC8D1A765917874821CFC02361FFD2
File Size: 641.54 KB, 641536 bytes
MD5: da2537b81df6c507ec8edeab68617036
SHA1: 86d0478eca115aed5944d5dfb394337b0d867772
SHA256: E1699413D9086E4F86F380E13333D8615886E74C57B1A37AD8A31D3B3C90666B
File Size: 640.00 KB, 640000 bytes
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MD5: 41221b70e683659e0144400eeb305aac
SHA1: 4178ae210b505b0cd88fc75e0fadc3d5c2e05b05
SHA256: 675C145F3CDF700E6F08E75B031375C5AE4C16797F9E1C582EE5F81E238DE8FC
File Size: 641.54 KB, 641536 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 resources
  • 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
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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)

File Traits

  • .NET
  • No Version Info
  • x86

Block Information

Total Blocks: 115
Potentially Malicious Blocks: 70
Whitelisted Blocks: 45
Unknown Blocks: 0

Visual Map

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

Similar Families

  • MSIL.Krypt.GDTB

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAlertThreadByThreadId
  • 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!NtCreateThreadEx
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  • 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!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!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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