Win32/Filecoder.NHN

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

What is Win32/Filecoder.NHN infection?

In this short article you will locate regarding the interpretation of Win32/Filecoder.NHN and also its unfavorable influence on your computer system. Such ransomware are a kind of malware that is specified by on-line fraudulences to demand paying the ransom by a target.

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Most of the situations, Win32/Filecoder.NHN virus will certainly advise its targets to initiate funds transfer for the purpose of neutralizing the amendments that the Trojan infection has actually introduced to the victim’s tool.

Win32/Filecoder.NHN Summary

These alterations can be as follows:

  • Uses Windows utilities for basic functionality;
  • Attempts to delete volume shadow copies;
  • Modifies boot configuration settings;
  • 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
  • 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;
  • Creates a copy of itself;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the files found on the sufferer’s hard drive — so the target can no more utilize the data;
  • Preventing routine access to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Win32/Filecoder.NHN

The most common networks where Win32/Filecoder.NHN Ransomware Trojans are injected are:

  • By means of phishing emails;
  • As a repercussion of user ending up on a resource that hosts a destructive software program;

As soon as the Trojan is efficiently injected, it will either cipher the data on the victim’s PC or stop the device from functioning in an appropriate fashion – while also putting a ransom note that states the requirement for the targets to impact the settlement for the objective of decrypting the papers or restoring the data system back to the first problem. In many circumstances, the ransom note will certainly show up when the client restarts the PC after the system has actually currently been harmed.

Win32/Filecoder.NHN circulation channels.

In different corners of the world, Win32/Filecoder.NHN grows by jumps and also bounds. However, the ransom notes as well as techniques of extorting the ransom money quantity may differ depending on particular neighborhood (local) settings. The ransom notes as well as methods of obtaining the ransom quantity might differ depending on specific local (local) setups.

Ransomware injection

For instance:

    Faulty alerts regarding unlicensed software program.

    In particular areas, the Trojans often wrongfully report having identified some unlicensed applications enabled on the victim’s gadget. The sharp after that requires the user to pay the ransom money.

    Faulty declarations regarding illegal content.

    In countries where software piracy is less popular, this method is not as efficient for the cyber fraudulences. Additionally, the Win32/Filecoder.NHN popup alert might wrongly claim to be originating from a law enforcement organization and will report having located kid porn or various other illegal data on the gadget.

    Win32/Filecoder.NHN popup alert might wrongly declare to be obtaining from a regulation enforcement organization as well as will certainly report having situated kid porn or various other prohibited data on the gadget. The alert will similarly contain a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: 26FCC880
md5: c01cda385e2f5b28c73a1049fa877ac1
name: C01CDA385E2F5B28C73A1049FA877AC1.mlw
sha1: 713de88da850e8c30abb0fed3ab2e64aaf0f1473
sha256: 0ec9e14919191fd7eef9fc4076296bbeb599bbbf3b1f208d7192dcbeb20ead4f
sha512: 085705ea4da5bc9bc556c65a0d62f90eec6243aed2d66ad73cec0a3b4311a93fdc51a3f885da7afd50c9c98e28b878788dc6175bf34fef4d3ba5c4506ab03bbd
ssdeep: 12288:uCdOy3vVrKxR5CXbNjAOxK/j2n+4YG/6c1mFFja3mXgcjfRlgsUBgaga5qqAfwG:uCdxte/80jYLT3U1jfsWaX5ofwGdFQ
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0809 0x04b0

Win32/Filecoder.NHN also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
DrWebTrojan.Encoder.24576
CynetMalicious (score: 85)
CAT-QuickHealRansom.Autoit.CryptoWire.A
McAfeeArtemis!C01CDA385E2F
CylanceUnsafe
SangforRansom.Win32.CryptoWire.MSR
CrowdStrikewin/malicious_confidence_80% (D)
Cybereasonmalicious.85e2f5
ESET-NOD32Win32/Filecoder.NHN
APEXMalicious
AvastAutoIt:Ransom-K [Trj]
KasperskyTrojan-Ransom.Win32.Gen.fla
BitDefenderGeneric.Ransom.AIT.Ouroboros.C50292DF
NANO-AntivirusTrojan.Win32.AD.esykef
MicroWorld-eScanGeneric.Ransom.AIT.Ouroboros.C50292DF
TencentWin32.Trojan.Raas.Auto
Ad-AwareGeneric.Ransom.AIT.Ouroboros.C50292DF
SophosTroj/CrWire-A
ComodoMalware@#1mkzxiol2jfb6
BitDefenderThetaAI:Packer.C658345116
VIPRETrojan.Win32.Generic!BT
TrendMicroMal_Cryptoit-1
McAfee-GW-EditionBehavesLike.Win32.TrojanAitInject.th
FireEyeGeneric.Ransom.AIT.Ouroboros.C50292DF
EmsisoftGeneric.Ransom.AIT.Ouroboros.C50292DF (B)
AviraHEUR/AGEN.1100014
MicrosoftRansom:Win32/Genasom
AegisLabTrojan.Win32.Generic.4!e
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataGeneric.Ransom.AIT.Ouroboros.C50292DF (2x)
MAXmalware (ai score=99)
PandaTrj/CI.A
TrendMicro-HouseCallMal_Cryptoit-1
RisingRansom.CryptoWire/Autoit!1.C3A2 (CLASSIC)
FortinetAutoIt/Ouroboros.A!tr.ransom
AVGAutoIt:Ransom-K [Trj]
Paloaltogeneric.ml
Qihoo-360Generic/Trojan.Ransom.faa

How to remove Win32/Filecoder.NHN 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.NHN 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.NHN you can always ask me in the comments for getting help.

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References

  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: https://gridinsoft.com/comparison

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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