Written by Robert Bailey

What is JS/Filecoder.F infection?

In this post you will discover about the definition of JS/Filecoder.F and its unfavorable influence on your computer. Such ransomware are a kind of malware that is clarified by on-line fraudulences to demand paying the ransom by a victim.

GridinSoft Anti-Malware Review

It is better to prevent, than repair and repent!

When we talk about the intrusion of unfamiliar programs into your computer’s work, the proverb “Forewarned is forearmed” describes the situation as accurately as possible. Gridinsoft Anti-Malware is exactly the tool that is always useful to have in your armory: fast, efficient, up-to-date. It is appropriate to use it as an emergency help at the slightest suspicion of infection.
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In the majority of the situations, JS/Filecoder.F virus will advise its sufferers to launch funds move for the objective of reducing the effects of the amendments that the Trojan infection has actually presented to the target’s tool.

JS/Filecoder.F Summary

These adjustments can be as complies with:

  • Detected script timer window indicative of sleep style evasion;
  • Reads data out of its own binary image;
  • A process created a hidden window;
  • Drops a binary and executes it;
  • A scripting utility was executed;
  • Attempts to repeatedly call a single API many times in order to delay analysis time;
  • Attempts to execute a binary from a dead or sinkholed URL;
  • Network activity detected but not expressed in API logs;
  • Ciphering the files found on the target’s disk drive — so the target can no longer use the data;
  • Preventing normal access to the target’s workstation;

Related domains:

z.whorecord.xyz Ransom:Win32/Rakhni.44d6cd5f
a.tomx.xyz Ransom:Win32/Rakhni.44d6cd5f


The most common channels whereby JS/Filecoder.F are injected are:

  • By ways of phishing e-mails;
  • As a repercussion of user ending up on a source that holds a malicious software application;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the data on the victim’s PC or avoid the device from operating in an appropriate manner – while additionally putting a ransom money note that discusses the need for the victims to impact the payment for the function of decrypting the records or restoring the data system back to the first problem. In the majority of instances, the ransom note will certainly turn up when the customer reboots the COMPUTER after the system has already been damaged.

JS/Filecoder.F distribution networks.

In different edges of the globe, JS/Filecoder.F expands by leaps and also bounds. Nonetheless, the ransom money notes and also tricks of extorting the ransom money amount might differ depending on specific regional (regional) setups. The ransom money notes and techniques of obtaining the ransom money quantity might differ depending on particular regional (regional) settings.

Ransomware injection

For example:

    Faulty signals regarding unlicensed software program.

    In specific areas, the Trojans commonly wrongfully report having actually identified some unlicensed applications enabled on the victim’s gadget. The alert after that requires the individual to pay the ransom money.

    Faulty statements about prohibited content.

    In nations where software application piracy is much less popular, this method is not as effective for the cyber frauds. Alternatively, the JS/Filecoder.F popup alert may falsely claim to be deriving from a law enforcement establishment and will report having located youngster porn or various other unlawful information on the device.

    JS/Filecoder.F popup alert may falsely declare to be obtaining from a legislation enforcement institution as well as will certainly report having situated youngster pornography or other unlawful information on the tool. The alert will in a similar way contain a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 346C9E17
md5: 1a61d0d0bcc5243214e92095aebbb1d1
name: 1A61D0D0BCC5243214E92095AEBBB1D1.mlw
sha1: a799e215889e9d6726abb6d221f270e46b70b02e
sha256: f8f30d6da645c61ddbddbd7ef848b0790df1fd7a1971ca26a0fe5688ddf6c3b1
sha512: 620ee269b747751a0c0af9f7f64ead2d9eeb376caef0a860d4cd358d008b4a082ab26cf42be45d98f367453fb1b30ca21644178b3e7f954f9d497494a63c7b43
ssdeep: 6144:fc0h522p3l04ZMSmIp3Uy28uhyqe/I3qWFdiga6S3ucSglNx:nhxp3lZnT9bDuaI3qGigTS3wgl3
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

JS/Filecoder.F also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Riskware ( 0040eff71 )
Lionic Trojan.Win32.Malicious.4!e
ALYac Trojan.GenericKD.4308773
Cylance Unsafe
Alibaba Ransom:Win32/Rakhni.44d6cd5f
K7GW Riskware ( 0040eff71 )
Cybereason malicious.0bcc52
Cyren JS/Nemucod.N1!Eldorado
Symantec Trojan.Gen.2
ESET-NOD32 JS/Filecoder.F
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Rakhni.wbpx
BitDefender Trojan.GenericKD.4308773
NANO-Antivirus Trojan.Win32.Rakhni.eljuve
MicroWorld-eScan Trojan.GenericKD.4308773
Tencent Win32.Trojan.Rakhni.Dzaf
Ad-Aware Trojan.GenericKD.4308773
Sophos Mal/Generic-S
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Generic.fc
FireEye Generic.mg.1a61d0d0bcc52432
Emsisoft Trojan.GenericKD.4308773 (B)
Microsoft Trojan:Win32/Dynamer!ac
Arcabit Trojan.Generic.D41BF25
GData Trojan.GenericKD.4308773
McAfee Artemis!1A61D0D0BCC5
MAX malware (ai score=87)
Panda Trj/CI.A
Ikarus Trojan.VBS.Downloader
MaxSecure Trojan.Malware.300983.susgen
Fortinet JS/Filecoder.D!tr
AVG Win32:Malware-gen
Paloalto generic.ml

How to remove JS/Filecoder.F virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

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 JS/Filecoder.F 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 JS/Filecoder.F you can always ask me in the comments for getting help.

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  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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