Written by Robert Bailey

What is Win32/Filecoder.NPA infection?

In this post you will certainly locate about the meaning of Win32/Filecoder.NPA as well as its adverse impact on your computer system. Such ransomware are a type of malware that is elaborated by online frauds to demand paying the ransom money by a target.

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In the majority of the instances, Win32/Filecoder.NPA infection will instruct its victims to start funds transfer for the objective of neutralizing the changes that the Trojan infection has actually introduced to the sufferer’s tool.

Win32/Filecoder.NPA Summary

These alterations can be as follows:

  • Expresses interest in specific running processes;
  • A process created a hidden window;
  • Uses Windows utilities for basic functionality;
  • Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Exhibits possible ransomware file modification behavior;
  • Writes a potential ransom message to disk;
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the papers situated on the sufferer’s disk drive — so the victim can no longer make use of the data;
  • Preventing regular accessibility to the victim’s workstation;


One of the most common channels whereby Win32/Filecoder.NPA Ransomware 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 user winding up on a resource that organizes a malicious software program;

As quickly as the Trojan is effectively injected, it will certainly either cipher the information on the sufferer’s PC or prevent the tool from functioning in an appropriate fashion – while also putting a ransom note that points out the demand for the victims to effect the repayment for the objective of decrypting the records or restoring the data system back to the initial problem. In most circumstances, the ransom note will come up when the customer reboots the PC after the system has actually currently been harmed.

Win32/Filecoder.NPA distribution networks.

In numerous edges of the world, Win32/Filecoder.NPA expands by leaps as well as bounds. Nevertheless, the ransom money notes and tricks of obtaining the ransom money quantity might vary depending on certain local (local) settings. The ransom notes and also tricks of obtaining the ransom quantity might differ depending on specific local (regional) settings.

Ransomware injection

For example:

    Faulty alerts regarding unlicensed software.

    In particular areas, the Trojans frequently wrongfully report having actually detected some unlicensed applications made it possible for on the victim’s gadget. The sharp after that demands the customer to pay the ransom.

    Faulty statements regarding prohibited material.

    In nations where software piracy is less popular, this approach is not as efficient for the cyber frauds. Alternatively, the Win32/Filecoder.NPA popup alert might wrongly assert to be deriving from a law enforcement establishment and will certainly report having located youngster pornography or other unlawful data on the device.

    Win32/Filecoder.NPA popup alert may wrongly declare to be acquiring from a law enforcement organization and also will certainly report having situated kid porn or various other illegal data on the tool. The alert will in a similar way consist of a need for the user to pay the ransom money.

Technical details

File Info:

crc32: F898B843
md5: 9d4712f951c032bafb24081b17ca34aa
name: 9D4712F951C032BAFB24081B17CA34AA.mlw
sha1: 2c6d45d52810daa6f2119ce6032c0aa6cce65e71
sha256: 52284f553a43d0d086d4645bbd679e9678ce191c83061b88ba77f0f0f96ded18
sha512: 9a8c89bc0de426cbd5dad61c71ac08c705dfcc70e727fbf088fda968f1182ba909480bccf12286a0301abf0e7dbe410cedb1e2e7c5ee01622a5c383f2b93840a
ssdeep: 192:wq6mfu80ADzQmbmuIiX8f3CLrlw8s28JQmGHYlT1o8QPg4WwQYmYf:X6gecEmbmfiXESLrmn2WQ4lRYPDcYXf
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Filecoder.NPA also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 005451b81 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.12135
Cynet Malicious (score: 100)
ALYac Trojan.Ransom.LockCrypt
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_70% (D)
Alibaba Trojan:Win32/Filecoder.63977377
K7GW Trojan ( 005451b81 )
Cybereason malicious.951c03
Cyren W32/Threat-HLLSI-based!Maximus
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Filecoder.NPA
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan.Win32.AntiAV
BitDefender Generic.Ransom.LockCrypt.9AEC8C0E
NANO-Antivirus Trojan.Win32.AntiAV.eyehxj
SUPERAntiSpyware Ransom.Filecoder/Variant
MicroWorld-eScan Generic.Ransom.LockCrypt.9AEC8C0E
Tencent Win32.Trojan.Filecoder.Huzf
Ad-Aware Generic.Ransom.LockCrypt.9AEC8C0E
Sophos Mal/Generic-R + Mal/Ransom-FO
Comodo Malware@#81ma5v016aiz
BitDefenderTheta AI:Packer.B0DB9F3A1F
VIPRE BehavesLike.Win32.Malware.wsc (mx-v)
TrendMicro Ransom_GENASOM.SM
McAfee-GW-Edition Trojan-FOQP!9D4712F951C0
Emsisoft Generic.Ransom.LockCrypt.9AEC8C0E (B)
SentinelOne Static AI – Suspicious PE
Avira HEUR/AGEN.1106794
eGambit Unsafe.AI_Score_99%
Microsoft Ransom:Win32/Genasom
Arcabit Generic.Ransom.LockCrypt.9AEC8C0E
AegisLab Trojan.Win32.Generic.4!c
GData Win32.Trojan-Ransom.Filecoder.CG@gen
AhnLab-V3 Malware/Win32.Generic.C2436577
McAfee Trojan-FOQP!9D4712F951C0
MAX malware (ai score=98)
VBA32 BScope.Trojan.AntiAV
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom_GENASOM.SM
Rising Trojan.Filecoder!8.68 (CLOUD)
Ikarus Trojan-Ransom.FileCrypter
Fortinet W32/Generic.AC.403a48!tr
AVG Win32:Malware-gen
Qihoo-360 Win32/Trojan.AntiAV.HxQBuKMA

How to remove Win32/Filecoder.NPA ransomware?

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.NPA 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

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

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  1. GridinSoft Anti-Malware Review from HowToFix site:
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About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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