Win32/Filecoder.NUC

Written by Robert Bailey

What is Win32/Filecoder.NUC infection?

In this post you will certainly discover concerning the meaning of Win32/Filecoder.NUC and also its adverse effect on your computer. Such ransomware are a form of malware that is specified by online scams to demand paying the ransom money by a victim.

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In the majority of the situations, Win32/Filecoder.NUC ransomware will certainly instruct its targets to initiate funds move for the function of reducing the effects of the changes that the Trojan infection has actually presented to the sufferer’s device.

Win32/Filecoder.NUC Summary

These alterations can be as adheres to:

  • A process attempted to delay the analysis task.;
  • The binary likely contains encrypted or compressed data.;
  • The executable is compressed using UPX;
  • Uses Windows utilities for basic functionality;
  • Network activity detected but not expressed in API logs;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents located on the victim’s hard disk drive — so the target can no longer make use of the data;
  • Preventing normal accessibility to the victim’s workstation;

Win32/Filecoder.NUC

One of the most common channels whereby Win32/Filecoder.NUC Ransomware are injected are:

  • By means of phishing e-mails;
  • As a repercussion of customer ending up on a source that holds a harmful software application;

As soon as the Trojan is effectively injected, it will either cipher the data on the sufferer’s PC or stop the gadget from functioning in a proper fashion – while additionally putting a ransom money note that discusses the requirement for the sufferers to impact the settlement for the objective of decrypting the records or recovering the file system back to the initial condition. In most circumstances, the ransom note will certainly turn up when the client reboots the PC after the system has already been harmed.

Win32/Filecoder.NUC distribution channels.

In different edges of the world, Win32/Filecoder.NUC grows by jumps as well as bounds. However, the ransom notes as well as methods of extorting the ransom amount may vary depending on particular neighborhood (local) setups. The ransom money notes and also techniques of obtaining the ransom money quantity may differ depending on certain regional (regional) settings.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software application.

    In certain areas, the Trojans often wrongfully report having found some unlicensed applications enabled on the victim’s gadget. The sharp then requires the individual to pay the ransom money.

    Faulty statements about illegal content.

    In nations where software piracy is much less popular, this method is not as efficient for the cyber scams. Alternatively, the Win32/Filecoder.NUC popup alert may incorrectly assert to be stemming from a law enforcement organization as well as will certainly report having located youngster pornography or other prohibited information on the gadget.

    Win32/Filecoder.NUC popup alert might falsely declare to be acquiring from a law enforcement establishment as well as will certainly report having located kid pornography or various other unlawful information on the gadget. The alert will in a similar way consist of a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: A222392B
md5: fc23de05f430e2a161f13a2a2fc7e646
name: FC23DE05F430E2A161F13A2A2FC7E646.mlw
sha1: 04f1c76fa1b860212cf08a44bc19b120c1d3b170
sha256: 8ff5d4d6849593fc5eed07e70388684f874264e464ab84d8205fd864348bffbf
sha512: 763ff76f0c3cea3ecc10582ddf9b5b8bbab212030d62e8b19b016cf8d2a1769bdd325213f74939a0935bff99c0c2dcbc7b3b2aee6b2ead8bc940943ea67d3759
ssdeep: 6144:nDIxiqpPBC3bEGxgj7vyvedFJxIwMM/BnRCinPHCgL9RxpM/yVtOgj7oS:n0QqpJC3AGxkxFMMJn/HtRvM/Qg87oS
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Win32/Filecoder.NUC also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Lionic Trojan.Win32.Gen.4!c
CAT-QuickHeal Ransom.Kraken.S4954668
ALYac Gen:Variant.Ursu.380799
Cylance Unsafe
Zillya Trojan.Gen.Win32.1930
Sangfor Suspicious.Win32.Save.a
CrowdStrike win/malicious_confidence_70% (D)
Alibaba Ransom:Win32/Filecoder.973931e8
K7GW Riskware ( 0040eff71 )
K7AntiVirus Riskware ( 0040eff71 )
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Filecoder.NUC
APEX Malicious
Avast Win32:Malware-gen
Cynet Malicious (score: 100)
Kaspersky Trojan-Ransom.Win32.Gen.kwa
BitDefender Gen:Variant.Ursu.380799
NANO-Antivirus Trojan.Win32.Filecoder.fmefap
MicroWorld-eScan Gen:Variant.Ursu.380799
Tencent Win32.Trojan.Gen.Ednf
Ad-Aware Gen:Variant.Ursu.380799
Sophos Generic ML PUA (PUA)
Comodo Malware@#jpcvqez9kb6r
BitDefenderTheta Gen:NN.ZexaF.34142.umGfaGMYH2fG
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Picsys.fc
FireEye Generic.mg.fc23de05f430e2a1
Emsisoft Trojan.Ransom.Kraken (A)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Gen.akq
Avira TR/DelFile.cjsfa
Antiy-AVL Trojan/Generic.ASMalwS.2A73129
Microsoft Trojan:Win32/Occamy.C8F
Arcabit Trojan.Ursu.D5CF7F
GData Gen:Variant.Ursu.380799
AhnLab-V3 Malware/Win32.Generic.C2984409
McAfee Artemis!FC23DE05F430
VBA32 BScope.TrojanRansom.Gen
Panda Trj/GdSda.A
Yandex Trojan.GenAsa!gARIqwzv6bk
Ikarus Trojan-Ransom.FileCrypter
Fortinet W32/Gen.KWA!tr.ransom
AVG Win32:Malware-gen
Paloalto generic.ml

How to remove Win32/Filecoder.NUC 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.NUC 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Win32/Filecoder.NUC 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: http://gridinsoft.com/products/

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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