Threat Database Trojans Trojan.Agent.LKFH

Trojan.Agent.LKFH

Trojan.Agent.LKFH is a detection name used by security software to identify a type of Trojan horse malware. Like other threats in the "Agent" detection family, this name is typically applied to malicious programs that share common behavioral traits or code characteristics with a broader group of Trojans, rather than referring to one single, uniquely identified virus. Because detailed technical specifics about this particular detection are limited, this article explains what Trojans of this type generally do and how users can protect themselves.

What This Threat Does

Trojans classified under generic "Agent" detections are typically designed to infiltrate a computer while disguising themselves as legitimate or harmless files. Once active, this type of malware can carry out a range of malicious actions in the background without the user's knowledge or consent. Typical behavior for threats in this category includes collecting information from the infected device, modifying system settings, downloading and installing additional malicious components, and establishing a connection to a remote server controlled by attackers. This remote connection may allow cybercriminals to issue commands, update the malware, or deploy additional threats such as spyware, ransomware, or other Trojans.

Because Trojans like this one are built to operate quietly, they often avoid drawing attention to themselves. They may disable certain security features, hide their files, or mimic legitimate system processes to reduce the chances of being noticed or removed.

How It Usually Gets Onto Computers

Trojans in this category commonly spread through deceptive methods rather than self-replication. Typical infection routes include malicious email attachments, fake software updates, cracked or pirated software, bundled downloads from untrustworthy websites, malicious advertisements, and links shared through social media or messaging platforms. Users are often tricked into manually running the infected file by believing it to be something safe or useful, such as a document, installer, or media file.

Risks for the User

An active Trojan infection can expose users to a variety of risks. These may include theft of personal or financial information, unauthorized remote access to the infected system, degraded computer performance, and the silent installation of additional malware. In some cases, infected machines may be used as part of a larger network of compromised computers to carry out further attacks, generate fraudulent traffic, or distribute spam. The longer such a threat remains active, the greater the potential damage to both the user's privacy and the integrity of their system.

Signs of Infection

Because Trojans are designed to be stealthy, infections are not always obvious. However, users may notice certain warning signs, such as:

  • Unexpected slowdowns in system performance
  • Unusual network activity or increased data usage
  • Programs or processes running that the user does not recognize
  • Security software being disabled or unable to update
  • Unexpected pop-ups, errors, or changes to system settings

How to Stay Protected

To reduce the risk of Trojan infections, users should avoid downloading files or software from untrusted sources, be cautious with email attachments and links from unknown senders, and keep their operating system and applications updated with the latest security patches. Using reputable security software and performing regular system scans can help detect and remove threats before they cause significant harm. Maintaining regular backups of important data also helps minimize damage in the event of an infection.

Analysis Report

General information

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

Known Samples

MD5: a6f6b3cf4e9e5dea913cef094395258f
SHA1: 5a7e3cf688c78a70ba4499187d002e16a2585a30
SHA256: 4031C15EB2701D2A6B0C25F14B53761908A30179A9DD8451044DBEE3D1081C49
File Size: 2.51 MB, 2508288 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have exports table
  • File doesn't have security 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
  • IMAGE_FILE_DLL is not set inside PE header (Executable)
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Traits

  • big overlay
  • fptable
  • HighEntropy
  • No Version Info
  • x64

Block Information

Total Blocks: 2,496
Potentially Malicious Blocks: 442
Whitelisted Blocks: 2,054
Unknown Blocks: 0

Visual Map

0 0 0 0 0 x 0 0 0 0 x 0 x 0 0 0 0 x 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 1 0 x x x x x x x x x x 0 x 0 x x x x 0 0 0 0 0 x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 x 0 0 0 1 0 0 0 0 0 0 0 x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x 0 0 x x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x 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 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 1 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 0 x 0 0 0 0 0 0 0 1 0 x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x x x 0 x x x x x x 0 x x x x 0 x x x x 0 x x x x 0 0 x x x x x x x x x x x x x x x x x x x x 0 0 x x x x x 0 x x x 0 x x x 0 0 x x x x x 0 0 x 0 0 0 x 0 x 0 0 0 0 0 0 0 x x 0 x x x x x 0 0 0 0 0 0 1 0 0 0 0 0 0 0 x x 0 x 0 0 x 0 x 0 x x 0 x x x 0 x x x 0 x x x x 0 0 x x x 0 x x x 0 0 x 0 x x x x 0 x 0 x 0 0 0 0 x x 0 x x 0 x x x x x x x x 0 0 0 x x x x 0 x x x x x x x x 0 0 x x x x x x 0 x x x 0 x 0 0 0 0 0 0 x 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 0 x x x x x 0 0 x 0 x 0 0 x 0 x x x x x 0 x x x 0 x 0 x x x x x x x 0 x x x x x x 0 0 x x 0 x x x x x x x x x x x x x 0 x x x x x 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 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 1 0 0 0 0 0 0 x 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 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x 0 0 0 0 x 0 0 x 0 x 0 0 x 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 x x x x x x x 0 x x x x x x x x x x 0 0 x x x x 0 0 0 0 x 0 0 0 x x 0 0 0 0 1 0 0 0 0 0 0 0 0 x x 0 x 0 x x x x 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 x x 0 x 0 x x 0 x 0 0 0 x 0 x 0 0 0 0 0 0 x x x x 0 x 0 x x x x 0 0 0 x x 0 x x x x x x 0 x x x x 0 x 0 0 x 0 0 x x x 0 0 0 x 0 x x x 0 0 x x x x x 0 x x 0 x 0 x x x x x x x 0 x x x x 0 0 x x x x 0 0 0 0 x x 0 0 0 0 0 0 0 0 0 0 0 0 x 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 x 0 x x 0 0 0 x x x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 x 0 x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x 0 0 x 0 0 0 0 0 0 0 0 0 0 x 0 1 0 0 0 0 0 0 0 x 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 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 x 0 x x x x x x 0 x x x 0 0 x x x 0 x x 0 x x x 0 0 x 0 x 0 x x x x x 0 x x x x x 0 x x x x x x x x 0 0 x x x 0 0 x 0 0 x x x x x 0 x x x 0 x x x x x x x 0 x x 0 0 0 x x x 0 0 0 x x x x 0 0 x 0 x x x 0 x x 0 0 0 0 0 0 0 0 0 0 0 0 0 x x 0 0 x 0 x x 0 0 0 x x x x x x 0 x x x 0 0 x 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 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 1 2 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 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 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 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 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
... Data truncated
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Similar Families

  • Agent.LKFH

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtClose
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtGetContextThread
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenThread
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQuerySystemInformation
  • ntdll.dll!NtQueryVirtualMemory
Show More
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtSuspendThread
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtWriteFile
  • UNKNOWN