What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Win32/Filecoder.H infection?

In this short article you will find regarding the meaning of Win32/Filecoder.H as well as its unfavorable effect on your computer. Such ransomware are a type of malware that is elaborated by online frauds to demand paying the ransom money by a victim.

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In the majority of the situations, Win32/Filecoder.H infection will certainly instruct its targets to launch funds transfer for the function of counteracting the modifications that the Trojan infection has actually introduced to the sufferer’s device.

Win32/Filecoder.H Summary

These adjustments can be as complies with:

  • Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
  • Attempts to connect to a dead IP:Port (1 unique times);
  • Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
  • Performs some HTTP requests;
  • Uses Windows utilities for basic functionality;
  • Exhibits possible ransomware file modification behavior;
  • Writes a potential ransom message to disk;
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers located on the sufferer’s hard drive — so the sufferer can no longer use the data;
  • Preventing normal access to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.
Similar behavior
Related domains Ransom.Win32.BadRabbit.i


One of the most normal channels where Win32/Filecoder.H are injected are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As an effect of customer winding up on a source that hosts a harmful software program;

As quickly as the Trojan is successfully injected, it will either cipher the data on the target’s PC or protect against the tool from operating in an appropriate fashion – while also putting a ransom money note that mentions the requirement for the victims to impact the repayment for the objective of decrypting the files or bring back the documents system back to the preliminary condition. In many circumstances, the ransom note will certainly turn up when the client reboots the PC after the system has actually already been harmed.

Win32/Filecoder.H circulation networks.

In various edges of the globe, Win32/Filecoder.H expands by leaps and bounds. Nevertheless, the ransom money notes and techniques of extorting the ransom money quantity might differ depending upon specific neighborhood (regional) setups. The ransom notes as well as tricks of extorting the ransom amount might differ depending on certain regional (local) settings.

Ransomware injection

For instance:

    Faulty signals concerning unlicensed software application.

    In specific locations, the Trojans usually wrongfully report having actually spotted some unlicensed applications made it possible for on the target’s device. The sharp after that demands the user to pay the ransom.

    Faulty statements about prohibited material.

    In countries where software piracy is much less preferred, this approach is not as efficient for the cyber frauds. Conversely, the Win32/Filecoder.H popup alert may wrongly declare to be deriving from a police establishment as well as will certainly report having located kid porn or other illegal information on the gadget.

    Win32/Filecoder.H popup alert might incorrectly claim to be deriving from a legislation enforcement establishment and also will certainly report having located child pornography or various other unlawful information on the gadget. The alert will similarly have a need for the individual to pay the ransom.

Technical details

File Info:

crc32: 7B7F30F3
md5: 4a9b71163e3a286032722426d5e1014f
name: 4A9B71163E3A286032722426D5E1014F.mlw
sha1: 2bc172633415d02fec411c8a71ed1d6ab25cf800
sha256: 487161cccb18e59953dc3ec69a7b4d44a6ae8beba18c1370dd3d4818c13a8914
sha512: 1d3555cee107a29c91dfcf581ca557af506e7e0f2bbaebc396113f609f88669ace8bf86042092d0e97e6152a2304875033278bda0faf2e2dbbeab7bc8611f4e4
ssdeep: 24576:NCdxte/80jYLT3U1jfsWaMn0/NHxkz8nQW:Ew80cTsjkWaMQHxabW
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0809 0x04b0

Win32/Filecoder.H also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 00539cbb1 )
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
McAfee Artemis!4A9B71163E3A
Cylance Unsafe
Sangfor Ransom.Win32.BadRabbit.i
CrowdStrike win/malicious_confidence_70% (D)
Alibaba Ransom:Win32/BadRabbit.61a0ea2d
K7GW Trojan ( 00539cbb1 )
Cybereason malicious.63e3a2
Symantec Trojan Horse
ESET-NOD32 a variant of Win32/Filecoder.H
APEX Malicious
Avast FileRepMalware
ClamAV Win.Ransomware.Cryptowire-6994916-0
Kaspersky Trojan-Ransom.Win32.BadRabbit.i
BitDefender Trojan.Ransom.KillRabit.B
NANO-Antivirus Trojan.Win32.BadRabbit.fhqncm
MicroWorld-eScan Trojan.Ransom.KillRabit.B
Tencent Win32.Trojan.Badrabbit.Pezz
Ad-Aware Trojan.Ransom.KillRabit.B
Sophos Mal/AutoIt-AK
BitDefenderTheta AI:Packer.D5F993151D
FireEye Trojan.Ransom.KillRabit.B
Emsisoft Trojan.Ransom.KillRabit.B (B)
Avira TR/FileCoder.snani
Microsoft Trojan:Win32/Occamy.B
Arcabit Trojan.Ransom.KillRabit.B
AegisLab Trojan.Win32.Generic.4!e
ZoneAlarm Trojan-Ransom.Win32.BadRabbit.j
GData Trojan.Ransom.KillRabit.B
AhnLab-V3 Malware/Win32.Generic.C2750822
VBA32 TrojanRansom.Encoder
Malwarebytes MachineLearning/Anomalous.96%
Panda Trj/Genetic.gen
Ikarus Trojan-Ransom.Autoit
Fortinet W32/Filecoder_Autoit.T!tr
AVG FileRepMalware

How to remove Win32/Filecoder.H virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

Run Setup.exe

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Win32/Filecoder.H files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:

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If the guide doesn’t help you to remove Win32/Filecoder.H you can always ask me in the comments for getting help.

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About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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