Threat Database Trojans Trojan.Kryptik.GDSR

Trojan.Kryptik.GDSR

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 25,598
Threat Level: 80 % (High)
Infected Computers: 1
First Seen: August 28, 2025
Last Seen: April 22, 2026
OS(es) Affected: Windows

The detection of Trojan.Kryptik.GDSR 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 steps to remove it from your system.

What Is Trojan.Kryptik.GDSR?

Trojan.Kryptik.GDSR is a type of malicious software, commonly referred to as a Trojan, designed to infiltrate and compromise computer systems. The name itself does not directly imply a specific malware family but indicates it is a Trojan-type threat. Trojans are known for their ability to disguise themselves as legitimate software, making them difficult to detect. They can be used for various malicious purposes, including data theft, system compromise, and the distribution of additional malware.

How Trojan.Kryptik.GDSR Operates

Trojan.Kryptik.GDSR, like other Trojans, operates by exploiting vulnerabilities in system security or by deceiving users into installing it. Once installed, it can perform a variety of malicious activities. Trojans often create backdoors that allow remote access to the infected system, enabling attackers to steal sensitive information, install additional malware, or use the compromised system for malicious activities. The specific operations of Trojan.Kryptik.GDSR can vary, but its primary goal is to compromise system security and privacy.

Symptoms of Infection

Symptoms of a Trojan infection can be subtle and may not always be immediately apparent. Common indicators include unusual system behavior, such as unexpected pop-ups, slow system performance, and unfamiliar programs or icons on the desktop. Additionally, victims may notice that their personal files have been encrypted or that they are being redirected to suspicious websites. In some cases, the system may become unstable, leading to frequent crashes or freezes.

  • Unexplained changes in system settings or the appearance of unfamiliar programs.
  • Increased system slowdown or crashes.
  • Appearance of pop-ups or unwanted advertisements.
  • Difficulty in accessing personal files or finding them encrypted.

How to Remove Trojan.Kryptik.GDSR

  1. Boot your computer in Safe Mode with Networking. This will limit the malware's ability to interfere with the removal process.
  2. Download and install a reputable anti-malware tool, such as SpyHunter, and perform a full system scan. Ensure the tool is updated with the latest definitions to increase the chances of detecting and removing the Trojan.
  3. Uninstall any suspicious programs or applications that were installed around the time the infection was detected. Be cautious and only remove programs you are certain are malicious or unnecessary.
  4. Reset your web browsers (Chrome, Firefox, Edge) to their default settings. This can help remove any malicious extensions or settings changes made by the Trojan.
  5. Reboot your computer and perform another full scan with your anti-malware tool to ensure that the Trojan and any associated malware are completely removed.

Conclusion

The removal of Trojan.Kryptik.GDSR requires careful and immediate action to prevent further system compromise and potential data loss. By following the steps outlined in this report and maintaining vigilant system security practices, such as regularly updating software and using reputable anti-malware tools, you can protect your system from future threats. Remember, prevention is key, and being cautious when opening email attachments, downloading software, and clicking on links can significantly reduce the risk of infection.

Analysis Report

General information

Family Name: Trojan.Kryptik.GDSR
Signature status: No Signature

Known Samples

MD5: 9cb1af6b7f771011151747b34e617eb9
SHA1: d2a7bcbf908507af3d7d3b0ae9dbaadd141810a4
SHA256: E695EAFB035D9A54BF6B22BC27DBAAD4C02CB4CD3011952E0CA77EB78E7C688C
File Size: 557.06 KB, 557056 bytes
MD5: 7ae5e6a53b8e6999fe80f7ae075a01eb
SHA1: 1651633b967dcae54a28a7005a449ccf6a9014b9
SHA256: 3B501F1509AA68A8C9780FA70C99FEEA17293A45C8A757B3CE4B8F664CC7652A
File Size: 1.86 MB, 1857024 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 has TLS information
  • File is 64-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • File is Native application (NOT .NET 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 Icons

Windows PE Version Information

Name Value
Company Name
  • Igor Pavlov
  • Microsoft Corporation
File Description
  • 7-Zip Console
  • Microsoft Windows Media Configuration Utility
File Version
  • 23.01
  • 12.0.19041.3636 (WinBuild.160101.0800)
Internal Name
  • 7z
  • setup_wm.exe
Legal Copyright
  • Copyright (c) 1999-2023 Igor Pavlov
  • © Microsoft Corporation. All rights reserved.
Original Filename
  • 7z.exe
  • setup_wm.exe
Product Name
  • 7-Zip
  • Microsoft® Windows® Operating System
Product Version
  • 23.01
  • 12.0.19041.3636

File Traits

  • HighEntropy
  • Installer Manifest
  • Installer Version
  • ntdll
  • x64

Block Information

Total Blocks: 35
Potentially Malicious Blocks: 4
Whitelisted Blocks: 27
Unknown Blocks: 4

Visual Map

0 0 0 0 0 0 x x x ? ? ? ? 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x 2 0 0 0 0
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Similar Families

  • Kryptik.GDSR

Files Modified

File Attributes
\device\namedpipe\dav rpc service Generic Read,Write Data,Write Attributes,Write extended,Append data
\device\namedpipe\pshost.134206865469159751.6812.defaultappdomain.powershell Generic Read,Write Data,Write Attributes,Write extended,Append data,LEFT 524288
\device\namedpipe\pshost.134206865495246361.308.defaultappdomain.powershell Generic Read,Write Data,Write Attributes,Write extended,Append data,LEFT 524288
\device\namedpipe\pshost.134206865503544956.3780.defaultappdomain.powershell Generic Read,Write Data,Write Attributes,Write extended,Append data,LEFT 524288
\device\namedpipe\pshost.134206865511874456.7796.defaultappdomain.powershell Generic Read,Write Data,Write Attributes,Write extended,Append data,LEFT 524288
\device\namedpipe\wkssvc Generic Read,Write Data,Write Attributes,Write extended,Append data
c:\users\user\appdata\local\microsoft\windows\powershell\startupprofiledata-noninteractive Generic Write,Read Attributes
c:\users\user\appdata\local\microsoft\windows\usrclass.dat{dba6b5ef-640a-11ed-9bcb-f677369d361c}.txr.1.regtrans-ms Generic Read,Write Data,Write Attributes,Write extended,Append data
c:\users\user\appdata\local\microsoft\windows\usrclass.dat{dba6b5ef-640a-11ed-9bcb-f677369d361c}.txr.2.regtrans-ms Generic Read,Write Data,Write Attributes,Write extended,Append data
c:\users\user\appdata\local\temp\__psscriptpolicytest_4q1cjdl1.vnp.psm1 Generic Write,Read Attributes
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c:\users\user\appdata\local\temp\__psscriptpolicytest_5wqgozkg.tsf.ps1 Generic Write,Read Attributes
c:\users\user\appdata\local\temp\__psscriptpolicytest_bs0hpp2j.ful.ps1 Generic Write,Read Attributes
c:\users\user\appdata\local\temp\__psscriptpolicytest_ccswwdfy.ewc.ps1 Generic Write,Read Attributes
c:\users\user\appdata\local\temp\__psscriptpolicytest_cy3n2mpk.53c.psm1 Generic Write,Read Attributes
c:\users\user\appdata\local\temp\__psscriptpolicytest_goq2r5qs.jxo.psm1 Generic Write,Read Attributes
c:\users\user\appdata\local\temp\__psscriptpolicytest_ywcasygz.dhp.ps1 Generic Write,Read Attributes
c:\users\user\appdata\local\temp\__psscriptpolicytest_zkzzj43i.xdf.psm1 Generic Write,Read Attributes
c:\users\user\appdata\roaming\systemservices\svc_host.exe Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144

Registry Modifications

Key::Value Data API Name
HKCU\software\microsoft\windows\currentversion\run::systemserviceshost C:\Users\Vbmfvktb\AppData\Roaming\SystemServices\svc_host.exe RegNtPreCreateKey
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe e%��n�� RegNtPreCreateKey
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe 챮ǜ RegNtPreCreateKey
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe 䞷챮ǜ RegNtPreCreateKey
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe ک챮ǜ RegNtPreCreateKey

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAccessCheck
  • ntdll.dll!NtAddAtomEx
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcConnectPort
  • ntdll.dll!NtAlpcConnectPortEx
  • ntdll.dll!NtAlpcCreatePortSection
  • ntdll.dll!NtAlpcCreateResourceReserve
  • ntdll.dll!NtAlpcCreateSectionView
  • ntdll.dll!NtAlpcCreateSecurityContext
  • ntdll.dll!NtAlpcDeleteSecurityContext
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  • ntdll.dll!NtAlpcQueryInformation
  • ntdll.dll!NtAlpcQueryInformationMessage
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtAlpcSetInformation
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtAssociateWaitCompletionPacket
  • ntdll.dll!NtCancelWaitCompletionPacket
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtCopyFileChunk
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateIoCompletion
  • ntdll.dll!NtCreateKey
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateSemaphore
  • ntdll.dll!NtCreateThreadEx
  • ntdll.dll!NtCreateTimer2
  • ntdll.dll!NtCreateUserProcess
  • ntdll.dll!NtCreateWaitCompletionPacket
  • ntdll.dll!NtCreateWorkerFactory
  • ntdll.dll!NtDebugContinue
  • ntdll.dll!NtDelayExecution
  • ntdll.dll!NtDeviceIoControlFile
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtEnumerateKey
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFlushInstructionCache
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtFsControlFile
  • ntdll.dll!NtGetCompleteWnfStateSubscription
  • ntdll.dll!NtGetContextThread
  • ntdll.dll!NtIsProcessInJob
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtNotifyChangeKey
  • ntdll.dll!NtOpenDirectoryObject
  • ntdll.dll!NtOpenEvent
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenProcessTokenEx
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenSemaphore
  • ntdll.dll!NtOpenThread
  • ntdll.dll!NtOpenThreadToken
  • ntdll.dll!NtOpenThreadTokenEx
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryEvent
  • ntdll.dll!NtQueryInformationFile
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryLicenseValue
  • ntdll.dll!NtQueryObject
  • 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!NtReadRequestData
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseSemaphore
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtRemoveProcessDebug
  • ntdll.dll!NtResumeThread
  • ntdll.dll!NtSetContextThread
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationFile
  • ntdll.dll!NtSetInformationKey
  • ntdll.dll!NtSetInformationObject
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationThread
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtSetSecurityObject
  • ntdll.dll!NtSetTimer2
  • ntdll.dll!NtSetValueKey
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtTerminateProcess
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl

12 additional items are not displayed above.

User Data Access
  • GetComputerNameEx
Process Manipulation Evasion
  • NtUnmapViewOfSection

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