Win32/Filecoder.NKD
Sarah Oconnell
Updated on February 16, 2026
What is Win32/Filecoder.NKD infection?
In this post you will certainly find about the definition of Win32/Filecoder.NKD and also its unfavorable effect on your computer system. Such ransomware are a form of malware that is elaborated by on the internet fraudulences to demand paying the ransom money by a sufferer.
In the majority of the cases, Win32/Filecoder.NKD ransomware will certainly advise its sufferers to initiate funds move for the function of counteracting the modifications that the Trojan infection has introduced to the victim’s gadget.
Win32/Filecoder.NKD Summary
These modifications can be as complies with:
- Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
- Injection (inter-process);
- Injection (Process Hollowing);
- Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
- Possible date expiration check, exits too soon after checking local time;
- Expresses interest in specific running processes;
- Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
- The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
- Uses Windows utilities for basic functionality;
- Executed a process and injected code into it, probably while unpacking;
- Deletes its original binary from disk;
- Attempts to delete volume shadow copies;
- Modifies boot configuration settings;
- Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
- 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 copy of itself;
- Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
- Uses suspicious command line tools or Windows utilities;
- Ciphering the papers found on the victim’s hard disk — so the target can no more use the information;
- Preventing routine access to the sufferer’s workstation;
Win32/Filecoder.NKD
The most common channels whereby Win32/Filecoder.NKD Ransomware Trojans are infused are:
- By ways of phishing e-mails;
- As a consequence of individual winding up on a resource that hosts a harmful software;
As soon as the Trojan is efficiently injected, it will certainly either cipher the data on the victim’s computer or avoid the gadget from working in an appropriate way – while additionally placing a ransom note that discusses the requirement for the targets to impact the repayment for the function of decrypting the papers or recovering the documents system back to the first condition. In most circumstances, the ransom note will come up when the customer reboots the PC after the system has actually currently been harmed.
Win32/Filecoder.NKD distribution networks.
In numerous corners of the world, Win32/Filecoder.NKD expands by jumps and also bounds. Nevertheless, the ransom notes and also methods of extorting the ransom money amount might vary depending upon particular regional (regional) setups. The ransom money notes and also methods of extorting the ransom quantity may differ depending on specific regional (local) setups.
For instance:
Faulty alerts concerning unlicensed software program.
In particular areas, the Trojans usually wrongfully report having actually detected some unlicensed applications enabled on the target’s device. The sharp then requires the customer to pay the ransom.
Faulty declarations about illegal material.
In nations where software application piracy is less prominent, this approach is not as reliable for the cyber frauds. Alternatively, the Win32/Filecoder.NKD popup alert may falsely declare to be originating from a law enforcement organization and will report having located child pornography or other unlawful data on the device.
Win32/Filecoder.NKD popup alert might falsely assert to be acquiring from a legislation enforcement establishment and will report having situated youngster pornography or various other illegal information on the device. The alert will likewise contain a demand for the customer to pay the ransom.
Technical details
File Info:
crc32: 8D87C387md5: 1ee2db707c77a1482111c6870b216c2aname: 1EE2DB707C77A1482111C6870B216C2A.mlwsha1: 8aac1aa56200fdcadc116c3af711e282cb24b079sha256: 920ce0772b6dc9619d190416151dd8cc27efc6fd92c8b9c85d0c0468f75382bcsha512: a5e26465854b3b568fa282c2dd377289adca7f0414e9a4cee33ff417e4b6f01faa0f76fd5275d621cfd2200d1c3ecb64e67e48757a7a744b10ec115acb6ed4cfssdeep: 6144:oTHEGciq6RflazcT2aK6zlffqJ0V7f+2hxzk41GZ6PLSmAr1CYjYHc:gHncloflohyXq2hxzZq2FEtype: PE32 executable (GUI) Intel 80386, for MS WindowsVersion Info:
0: [No Data]
Win32/Filecoder.NKD also known as:
| GridinSoft | Trojan.Ransom.Gen |
| Bkav | W32.AIDetect.malware1 |
| K7AntiVirus | Trojan ( 005086421 ) |
| Elastic | malicious (high confidence) |
| DrWeb | Trojan.Siggen7.10717 |
| Cynet | Malicious (score: 100) |
| Cylance | Unsafe |
| Zillya | Trojan.Filecoder.Win32.4852 |
| Sangfor | Trojan.Win32.Save.a |
| CrowdStrike | win/malicious_confidence_90% (W) |
| Alibaba | Trojan:Win32/Filecoder.db955902 |
| K7GW | Trojan ( 005086421 ) |
| Cybereason | malicious.07c77a |
| Symantec | Trojan.Gen |
| ESET-NOD32 | Win32/Filecoder.NKD |
| APEX | Malicious |
| Avast | Win32:Rootkit-gen [Rtk] |
| Kaspersky | HEUR:Trojan.Win32.Generic |
| BitDefender | Gen:Trojan.Brresmon.Gen.1 |
| NANO-Antivirus | Trojan.Win32.Kasidet.emoasi |
| MicroWorld-eScan | Gen:Trojan.Brresmon.Gen.1 |
| Tencent | Win32.Trojan.Raas.Auto |
| Ad-Aware | Gen:Trojan.Brresmon.Gen.1 |
| Sophos | Mal/Generic-S |
| Comodo | Malware@#3oapmtyy8l8bj |
| BitDefenderTheta | Gen:NN.ZexaF.34628.BuW@a8Ye3Egi |
| VIPRE | Trojan.Win32.Generic!BT |
| TrendMicro | Ransom_MATRIX.F117DB |
| McAfee-GW-Edition | BehavesLike.Win32.Generic.gc |
| FireEye | Generic.mg.1ee2db707c77a148 |
| Emsisoft | Gen:Trojan.Brresmon.Gen.1 (B) |
| Jiangmin | Backdoor.Androm.nsk |
| Webroot | W32.Trojan.Gen |
| Avira | HEUR/AGEN.1115884 |
| Kingsoft | Win32.Troj.Gener.(kcloud) |
| Microsoft | Trojan:MSIL/Cryptor |
| AegisLab | Trojan.Win32.Androm.toeF |
| GData | Gen:Trojan.Brresmon.Gen.1 |
| AhnLab-V3 | Malware/Win32.Generic.C1900841 |
| Acronis | suspicious |
| McAfee | GenericRXBE-GF!1EE2DB707C77 |
| MAX | malware (ai score=83) |
| VBA32 | BScope.TrojanRansom.Troldesh |
| Malwarebytes | Spyware.Ursnif |
| Panda | Trj/GdSda.A |
| TrendMicro-HouseCall | Ransom_MATRIX.F117DB |
| Rising | Malware.Skeeyah!8.E947 (CLOUD) |
| SentinelOne | Static AI – Malicious PE |
| MaxSecure | Trojan.Malware.300983.susgen |
| Fortinet | W32/Kryptik.HDNI!tr |
| AVG | Win32:Rootkit-gen [Rtk] |
| Paloalto | generic.ml |
| Qihoo-360 | Win32/Rootkit.Generic.HwoC8a8A |
How to remove Win32/Filecoder.NKD ransomware?
There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft">2.
Download GridinSoft Anti-Malware.
You can download GridinSoft Anti-Malware by clicking the button below:
Download GridinSoft Anti-MalwareRun 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.
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.
Press “Install” button.
Once installed, Anti-Malware will automatically run.
Wait for the Anti-Malware scan to complete.
GridinSoft Anti-Malware will automatically start scanning your system for Win32/Filecoder.NKD 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.
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.
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 Anti-Malware
If the guide doesn’t help you to remove Win32/Filecoder.NKD you can always ask me in the comments for getting help.
References
- GridinSoft Anti-Malware Review from HowToFix site:
- More information about GridinSoft products:
