Threat Database Trojans Trojan.Agent.FYC

Trojan.Agent.FYC

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 19,757
Threat Level: 80 % (High)
Infected Computers: 10
First Seen: January 3, 2025
Last Seen: June 5, 2026
OS(es) Affected: Windows

The detection of Trojan.Agent.FYC indicates that your system has been compromised by a potentially malicious program. This type of threat is known as a Trojan, which is a broad category of malware that can perform a variety of harmful actions on an infected computer. Trojans are often designed to remain hidden from the user, making them difficult to detect and remove without the aid of specialized security software.

What Is Trojan.Agent.FYC?

Trojan.Agent.FYC is a type of Trojan horse malware that can infect a computer system without the user's knowledge or consent. The exact nature and purpose of this specific threat are not well-defined, but it is likely designed to perform malicious actions such as stealing sensitive information, installing additional malware, or providing unauthorized access to the infected system. Trojans like Trojan.Agent.FYC can be spread through various means, including infected software downloads, malicious email attachments, or exploited vulnerabilities in operating systems or applications.

How Trojan.Agent.FYC Operates

Once a Trojan like Trojan.Agent.FYC has infected a system, it can operate in a variety of ways. It may attempt to connect to a command and control server to receive instructions from its creators, or it may begin to execute its payload immediately. This payload could include actions such as data theft, installation of additional malware, or modification of system settings to facilitate further malicious activity. Trojans can also be designed to evade detection by traditional security measures, making them particularly challenging to remove without specialized tools and expertise.

Symptoms of Infection

The symptoms of a Trojan.Agent.FYC infection can vary widely, depending on the specific actions the malware is designed to perform. Common indicators of a Trojan infection include unusual system behavior, such as unexpected pop-ups, slow system performance, or unfamiliar programs running in the background. Additionally, users may notice that their personal files have been modified or deleted, or that their system settings have been changed without their consent. In some cases, a Trojan infection may not exhibit any noticeable symptoms at all, making regular system scans with reputable security software essential for detection and removal.

How to Remove Trojan.Agent.FYC

  1. Boot your system into Safe Mode with Networking to prevent the malware from loading and to allow for internet access for downloading and updating security software.
  2. Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all components of the Trojan.Agent.FYC infection.
  3. Uninstall any suspicious programs that may have been installed by the Trojan, as these could be part of the malware's payload or could be used to reinfect the system.
  4. Reset your web browsers (such as Chrome, Firefox, or Edge) to their default settings to remove any malicious extensions or settings that may have been installed by the Trojan.
  5. Reboot your system and perform another full scan with your anti-malware tool to ensure that all components of the Trojan have been removed and that the system is clean.

Conclusion

The removal of Trojan.Agent.FYC requires careful and thorough action to ensure that all components of the malware are eliminated from the infected system. By following the steps outlined above and maintaining vigilant security practices, users can protect themselves against this and other types of malware. Regular system scans, careful downloading and installation of software, and awareness of the symptoms of infection are all crucial in preventing and removing Trojan horse malware like Trojan.Agent.FYC. Remember, prevention and early detection are key to minimizing the impact of a malware infection and protecting sensitive information and system integrity.

Analysis Report

General information

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

Known Samples

MD5: 415a3dc1668b800c8f10f2b16ab0a022
SHA1: 8dc21ee7b8aaca2b50780af9c6bbcdd30dc10aaa
SHA256: 1BF39E025C8FF0867C2D6D7DA8C28F27508824A971237A75B6DF01C3DFBDAA18
File Size: 716.29 KB, 716288 bytes
MD5: 34d036f784edd226890df30ea11204a3
SHA1: 7f193cd52c5ba95efd23bf0b65c8cc5fe294a95f
SHA256: 18857B333102D622EF8F5A61F6A145F25D46D0F1932778435EF4C7A00DD935C9
File Size: 801.79 KB, 801792 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
File Description Microsoft® STL110 C++ Runtime Library
File Version 0.1.5
Internal Name MsSp7en - US.lex
Legal Copyright Copyright (C) 2024
Original Filename MsSp7en - US.lex.dll
Product Name MsSp7en - US.lex
Product Version 0.1.5

File Traits

  • dll
  • imgui
  • x64

Block Information

Total Blocks: 63
Potentially Malicious Blocks: 5
Whitelisted Blocks: 58
Unknown Blocks: 0

Visual Map

0 0 0 0 0 x 0 0 0 x x 1 x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 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 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAccessCheck
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtFreeVirtualMemory
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  • 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!NtOpenThreadTokenEx
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDebugFilterState
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQuerySystemInformation
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtQueryWnfStateData
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseSemaphore
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtRequestWaitReplyPort
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationVirtualMemory
  • 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

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