Win32/Filecoder.NXU

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

What is Win32/Filecoder.NXU infection?

In this post you will locate about the interpretation of Win32/Filecoder.NXU as well as its negative influence on your computer. Such ransomware are a form of malware that is specified by online scams to require paying the ransom by a victim.

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Most of the cases, Win32/Filecoder.NXU ransomware will advise its targets to start funds move for the function of reducing the effects of the amendments that the Trojan infection has actually introduced to the sufferer’s device.

Win32/Filecoder.NXU Summary

These adjustments can be as complies with:

  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • The executable is compressed using UPX;
  • Steals private information from local Internet browsers;
  • 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 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.
  • Ciphering the papers found on the target’s hard disk drive — so the sufferer can no longer use the data;
  • Preventing routine access to the sufferer’s workstation;

Win32/Filecoder.NXU

The most typical channels whereby Win32/Filecoder.NXU 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 a repercussion of individual winding up on a source that organizes a malicious software;

As soon as the Trojan is effectively injected, it will certainly either cipher the data on the victim’s computer or protect against the tool from functioning in an appropriate way – while likewise putting a ransom note that points out the need for the targets to effect the settlement for the objective of decrypting the records or restoring the data system back to the initial condition. In a lot of circumstances, the ransom note will come up when the customer reboots the PC after the system has currently been harmed.

Win32/Filecoder.NXU circulation channels.

In numerous edges of the world, Win32/Filecoder.NXU expands by leaps as well as bounds. However, the ransom notes and also techniques of obtaining the ransom money quantity may vary relying on specific neighborhood (regional) settings. The ransom notes and tricks of obtaining the ransom money quantity might differ depending on specific neighborhood (regional) setups.

Ransomware injection

For example:

    Faulty alerts concerning unlicensed software program.

    In particular areas, the Trojans commonly wrongfully report having actually found some unlicensed applications allowed on the sufferer’s device. The alert after that demands the user to pay the ransom money.

    Faulty declarations about prohibited web content.

    In countries where software program piracy is much less popular, this technique is not as efficient for the cyber scams. Alternatively, the Win32/Filecoder.NXU popup alert may falsely declare to be stemming from a law enforcement organization and also will report having located child porn or various other illegal data on the tool.

    Win32/Filecoder.NXU popup alert might wrongly assert to be acquiring from a legislation enforcement organization as well as will report having located child porn or various other illegal data on the tool. The alert will similarly include a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: CB0D2D9F
md5: ece25a69052545d541f4a3b01877fce0
name: ECE25A69052545D541F4A3B01877FCE0.mlw
sha1: 01b7cdb7255580d601703f67c3ed145460053701
sha256: db811773a571f14e53e4a9df7c982aac0ce932173ac8103bf629d841ed550b09
sha512: 9eca7f6e13ba74d8d216a89d0bedf5b913cf6700bb38250840a6022ebf239947bfa920f9d6c828d47ee42b296541d4b18103b25e601845e0bb9dda7a816bf537
ssdeep: 12288:jbGAu2vcINobIqKIMSI+CkoIujaFFirZkuu4wbaxawToiuCRO7:mV8mMqKIVI+CjUIR2KolCRO7
type: PE32 executable (console) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Win32/Filecoder.NXU also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0055dfcf1 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.33664
Cynet Malicious (score: 90)
ALYac Gen:Variant.Razy.761633
CrowdStrike win/malicious_confidence_60% (W)
K7GW Trojan ( 0055dfcf1 )
Cybereason malicious.905254
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Filecoder.NXU
APEX Malicious
Avast Win32:Trojan-gen
Kaspersky Trojan-Ransom.Win32.Crypmodng.fn
BitDefender Gen:Variant.Razy.761633
MicroWorld-eScan Gen:Variant.Razy.761633
Ad-Aware Gen:Variant.Razy.761633
Sophos Generic ML PUA (PUA)
BitDefenderTheta Gen:NN.ZexaF.34628.ImHfaeHM9Zei
McAfee-GW-Edition BehavesLike.Win32.Dropper.hc
FireEye Generic.mg.ece25a69052545d5
Emsisoft Gen:Variant.Razy.761633 (B)
Avira TR/FileCoder.tcycf
eGambit Unsafe.AI_Score_99%
Microsoft Trojan:Win32/Wacatac.B!ml
Arcabit Trojan.Razy.DB9F21
ZoneAlarm Trojan-Ransom.Win32.Crypmodng.fn
GData Gen:Variant.Razy.761633
AhnLab-V3 Behavior_Ransom/Win32.Filecoder.C4386244
McAfee Artemis!ECE25A690525
MAX malware (ai score=87)
VBA32 BScope.Trojan.Encoder
Malwarebytes Malware.Heuristic.1003
Panda Trj/GdSda.A
Rising Malware.Heuristic!ET#81% (RDMK:cmRtazpFGBTAt6g4oSaJZvNPodw+)
Ikarus Trojan-Ransom.FileCrypter
Fortinet W32/Crypmodng.FN!tr.ransom
AVG Win32:Trojan-gen
Qihoo-360 HEUR/QVM11.1.19BF.Malware.Gen

How to remove Win32/Filecoder.NXU 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.NXU 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.NXU 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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