Win32/Filecoder.NJF

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

What is Win32/Filecoder.NJF infection?

In this article you will find about the meaning of Win32/Filecoder.NJF and also its negative influence on your computer system. Such ransomware are a type of malware that is clarified by on the internet frauds to require paying the ransom money by a target.

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In the majority of the cases, Win32/Filecoder.NJF virus will certainly advise its targets to launch funds move for the purpose of counteracting the amendments that the Trojan infection has presented to the target’s device.

Win32/Filecoder.NJF Summary

These modifications can be as complies with:

  • Executable code extraction;
  • Creates RWX memory;
  • Reads data out of its own binary image;
  • Exhibits possible ransomware file modification behavior;
  • Writes a potential ransom message to disk;
  • Network activity detected but not expressed in API logs;
  • Appends a known encryptJJS ransomware file extension to files that have been encrypted;
  • Anomalous binary characteristics;
  • Ciphering the records found on the sufferer’s hard drive — so the sufferer can no more use the data;
  • Preventing normal accessibility to the victim’s workstation;

Win32/Filecoder.NJF

One of the most common channels whereby Win32/Filecoder.NJF Trojans are infused are:

  • By means of phishing e-mails;
  • As an effect of customer ending up on a resource that organizes a harmful software;

As soon as the Trojan is effectively injected, it will certainly either cipher the data on the victim’s computer or prevent the device from working in a proper fashion – while additionally putting a ransom note that points out the requirement for the sufferers to effect the settlement for the function of decrypting the papers or recovering the documents system back to the preliminary condition. In a lot of circumstances, the ransom note will show up when the customer restarts the COMPUTER after the system has already been damaged.

Win32/Filecoder.NJF distribution networks.

In various corners of the world, Win32/Filecoder.NJF expands by leaps as well as bounds. Nevertheless, the ransom money notes as well as techniques of extorting the ransom money quantity might differ relying on specific local (regional) settings. The ransom money notes as well as techniques of obtaining the ransom amount might vary depending on particular neighborhood (regional) setups.

Ransomware injection

For example:

    Faulty alerts about unlicensed software application.

    In certain areas, the Trojans often wrongfully report having found some unlicensed applications made it possible for on the victim’s tool. The sharp then demands the customer to pay the ransom money.

    Faulty statements regarding prohibited content.

    In countries where software program piracy is less prominent, this technique is not as efficient for the cyber frauds. Alternatively, the Win32/Filecoder.NJF popup alert might wrongly assert to be deriving from a police establishment as well as will certainly report having situated kid pornography or other prohibited information on the tool.

    Win32/Filecoder.NJF popup alert may wrongly assert to be obtaining from a law enforcement organization as well as will report having situated child pornography or various other unlawful information on the device. The alert will similarly consist of a requirement for the customer to pay the ransom.

Technical details

File Info:

crc32: 7E25AA33
md5: d7d422d171c445067755e83a6a9fecea
name: D7D422D171C445067755E83A6A9FECEA.mlw
sha1: 75363920c17627826b7a103ad71d29dce0403dc9
sha256: 39f0fb24857990832977a01904076c89c8b6e91071094b6ffc5b77c99cb39010
sha512: 62052cfb7ed7ebd039cdf1053e227e7f6c99011d75134f9b805b0b8a9db009de8aac292ac6a705f91658c6e8cc4bfec229db5b4e8e25e9c251d4fbcfc168fe5d
ssdeep: 3072:W2ON8xTEL855aOBth5SETm5pcR/f8bmuWjwvVfL7TGtDTNBQr4j:nONKYL8qWLIEEcR38CTEF3GZgs
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Filecoder.NJF also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware2
K7AntiVirusRiskware ( 0040eff71 )
Elasticmalicious (high confidence)
DrWebBackDoor.Poison.18546
CynetMalicious (score: 100)
ALYacTrojan.Ransom.N1N1N1
CylanceUnsafe
ZillyaTrojan.Scatter.Win32.123
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_80% (W)
AlibabaRansom:Win32/Scatter.04ad4615
K7GWRiskware ( 0040eff71 )
Cybereasonmalicious.0c1762
SymantecML.Attribute.HighConfidence
ESET-NOD32Win32/Filecoder.NJF
APEXMalicious
AvastWin32:Malware-gen
KasperskyTrojan-Ransom.Win32.Scatter.ap
NANO-AntivirusTrojan.Win32.Scatter.egkkmm
TencentWin32.Trojan.Scatter.Wtxc
SophosMal/Generic-S
ComodoMalware@#37ng4c8tb08o2
BitDefenderThetaGen:NN.ZexaF.34058.luW@aCnEoiei
VIPRETrojan.Win32.Generic!BT
TrendMicroTROJ_DYNAMER.XXYQ
McAfee-GW-EditionGeneric.bcz
FireEyeGeneric.mg.d7d422d171c44506
SentinelOneStatic AI – Suspicious PE
JiangminTrojan.Scatter.t
WebrootW32.Trojan.GenKD
AviraTR/Dropper.Gen
Antiy-AVLTrojan/Generic.ASMalwS.1A8A2FD
KingsoftWin32.Troj.GenericKD.v.(kcloud)
MicrosoftRansom:Win32/Genasom
TACHYONRansom/W32.Scatter.194560
McAfeeGeneric.bcz
MAXmalware (ai score=100)
PandaTrj/GdSda.A
TrendMicro-HouseCallTROJ_DYNAMER.XXYQ
RisingTrojan.Generic@ML.100 (RDML:QLCNIBXo8p3gjMfijhgz9w)
YandexTrojan.Scatter!lcNz0fKrCxw
IkarusTrojan.Dropper
FortinetW32/Scatter.AP!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml
Qihoo-360Win32/Ransom.Generic.HwoC2aEA

How to remove Win32/Filecoder.NJF 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.NJF 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.NJF 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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