Threat Database Trojans Trojan.Agent.KFU

Trojan.Agent.KFU

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 17,439
Threat Level: 80 % (High)
Infected Computers: 6
First Seen: August 19, 2025
Last Seen: May 27, 2026
OS(es) Affected: Windows

Analysis Report

General information

Family Name: Trojan.Agent.KFU
Signature status: No Signature

Known Samples

MD5: 03aeea027a18859a9e0fa4a919295d8e
SHA1: 5832bbe3d73b1ce131427d2f300760e83f4317cd
SHA256: 1621613C9A94669A722DFEA902B3CAE538B754899A068797977F1646A7B88255
File Size: 6.34 MB, 6341240 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have exports table
  • File doesn't have security information
  • File has TLS information
  • File is 64-bit executable
  • File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
  • File is either console or GUI application
  • File is Native application (NOT .NET application)
  • File is not packed
  • IMAGE_FILE_DLL is not set inside PE header (Executable)
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  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

Windows PE Version Information

Name Value
File Description Create and manage peers, extern WINAPI, using for checking system updates, read and write data to all Win-Sockets.
Legal Copyright © Microsoft Corporation. All rights reserved.
Product Name Windows Peer Manager
Product Version 2.0.2.1

File Traits

  • big overlay
  • x64

Block Information

Total Blocks: 8,419
Potentially Malicious Blocks: 507
Whitelisted Blocks: 7,847
Unknown Blocks: 65

Visual Map

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... Data truncated
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Similar Families

  • Agent.KFU

Files Modified

File Attributes
c:\users\user\appdata\roaming\peerservice\peerservice.exe Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144
c:\users\user\appdata\roaming\peerservice\peerservice.exe Generic Write,Read Attributes
c:\users\user\appdata\roaming\peerservice\peerservice.exe Synchronize,Write Data
c:\users\user\appdata\roaming\peerservice\rcx485a.tmp Generic Read,Write Data,Write Attributes,Write extended,Append data

Registry Modifications

Key::Value Data API Name
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\cmd.exe 猓ǜ RegNtPreCreateKey
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe 騟ǜ RegNtPreCreateKey

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAccessCheck
  • ntdll.dll!NtAddAtomEx
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtAreMappedFilesTheSame
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
  • ntdll.dll!NtCreateEvent
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  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateSemaphore
  • ntdll.dll!NtDeviceIoControlFile
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • 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!NtOpenThreadTokenEx
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDirectoryFileEx
  • 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!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtReadRequestData
  • ntdll.dll!NtReadVirtualMemory
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtRequestWaitReplyPort
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtTerminateProcess
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtTraceEvent
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWorkerFactoryWorkerReady
  • ntdll.dll!NtWriteFile
  • UNKNOWN
Process Manipulation Evasion
  • NtUnmapViewOfSection
Process Shell Execute
  • CreateProcess
Anti Debug
  • IsDebuggerPresent
User Data Access
  • GetUserObjectInformation
Process Terminate
  • TerminateProcess

Shell Command Execution

cmd.exe /C "schtasks /Create /TN "PeerCreator" /TR "C:\Users\Tqtfetfb\AppData\Roaming\PeerService\PeerService.exe" /SC ONLOGON /RL HIGHEST /F >nul 2>nul"
C:\WINDOWS\system32\schtasks.exe schtasks /Create /TN "PeerCreator" /TR "C:\Users\Tqtfetfb\AppData\Roaming\PeerService\PeerService.exe" /SC ONLOGON /RL HIGHEST /F

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