Win32/Filecoder.LockedFile.D

Written by Robert Bailey

What is Win32/Filecoder.LockedFile.D infection?

In this post you will certainly locate about the meaning of Win32/Filecoder.LockedFile.D and its adverse influence on your computer system. Such ransomware are a form of malware that is clarified by online scams to require paying the ransom by a target.

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In the majority of the cases, Win32/Filecoder.LockedFile.D ransomware will certainly advise its targets to initiate funds transfer for the purpose of counteracting the amendments that the Trojan infection has introduced to the sufferer’s device.

Win32/Filecoder.LockedFile.D Summary

These alterations can be as adheres to:

  • A process attempted to delay the analysis task.;
  • 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.
  • The executable is compressed using UPX;
  • Executed a very long command line or script command which may be indicative of chained commands or obfuscation;
  • Uses Windows utilities for basic functionality;
  • Attempts to delete volume shadow copies;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • 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;
  • Creates a copy of itself;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the files found on the sufferer’s hard drive — so the sufferer can no longer utilize the information;
  • Preventing normal access to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Win32/Filecoder.LockedFile.D

The most regular networks where Win32/Filecoder.LockedFile.D Trojans are infused are:

  • By means of phishing emails;
  • As an effect of user winding up on a resource that hosts a destructive software;

As quickly as the Trojan is efficiently infused, it will either cipher the data on the target’s PC or avoid the device from functioning in a proper way – while also putting a ransom note that points out the requirement for the victims to impact the repayment for the function of decrypting the documents or recovering the file system back to the initial condition. In many circumstances, the ransom note will certainly show up when the client reboots the PC after the system has actually currently been damaged.

Win32/Filecoder.LockedFile.D circulation channels.

In numerous edges of the world, Win32/Filecoder.LockedFile.D grows by leaps as well as bounds. However, the ransom notes as well as techniques of obtaining the ransom amount may differ depending upon certain local (regional) settings. The ransom money notes as well as techniques of obtaining the ransom quantity may vary depending on specific regional (local) setups.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software program.

    In particular locations, the Trojans often wrongfully report having actually discovered some unlicensed applications enabled on the target’s tool. The alert then demands the individual to pay the ransom money.

    Faulty declarations about illegal material.

    In countries where software piracy is less prominent, this technique is not as reliable for the cyber frauds. Additionally, the Win32/Filecoder.LockedFile.D popup alert may incorrectly assert to be stemming from a police institution and also will certainly report having situated kid pornography or other prohibited information on the device.

    Win32/Filecoder.LockedFile.D popup alert might falsely claim to be acquiring from a legislation enforcement establishment and will certainly report having situated child pornography or other unlawful information on the device. The alert will in a similar way include a need for the customer to pay the ransom money.

Technical details

File Info:

crc32: FF81A9B9
md5: 8d899b3acc20e36db33ea5f8fe0e7bfd
name: 8D899B3ACC20E36DB33EA5F8FE0E7BFD.mlw
sha1: 5e116e4501a60e70eb6385f014792018cd9a800d
sha256: ea946afa87dfbf7c3a8c0ab623733f3ca0f9aec52efdc3e0f065691c6b104e75
sha512: 8c81c4e1bac23d3b4a51de8527fa1a3f9c18161d9db86c4bb448d06bd308da466c3823a3cc9f09e2f1353686544321a7f7ddc396e308a80aea89b9553ceea031
ssdeep: 6144:gjkd8C6z5IxGKXwW8G2t9Ltot3sP2sw12HUtOf3xFBG3bRTcZQT:grC054Xj8vzLtotO23wOs3xFIrRT6Q
type: PE32 executable (console) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Win32/Filecoder.LockedFile.D also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 00520f0e1 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.15084
Cynet Malicious (score: 100)
ALYac Trojan.Ransom.Matrix
Cylance Unsafe
Zillya Trojan.Filecoder.Win32.7814
Sangfor Trojan.Win32.Tiggre.rfn
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/Tiggre.5ad0d0ef
K7GW Trojan ( 00520f0e1 )
Cybereason malicious.acc20e
Baidu Win32.Trojan.Ransom.d
ESET-NOD32 a variant of Win32/Filecoder.LockedFile.D
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Ransomware.Matrix-6502602-0
Kaspersky HEUR:Trojan-Ransom.Win32.Generic
BitDefender Generic.Ransom.Matrix.2BA1A421
NANO-Antivirus Trojan.Win32.Encoder.faiwze
MicroWorld-eScan Generic.Ransom.Matrix.2BA1A421
Tencent Win32.Trojan.Raas.Auto
Ad-Aware Generic.Ransom.Matrix.2BA1A421
Sophos Mal/Generic-S + Troj/Matrix-I
Comodo Malware@#3dmncll9uk1es
BitDefenderTheta AI:Packer.22BF999521
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom.Win32.MATRIX.AQDED
McAfee-GW-Edition BehavesLike.Win32.Generic.fc
FireEye Generic.mg.8d899b3acc20e36d
Emsisoft Generic.Ransom.Matrix.2BA1A421 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan.Generic.cbsdl
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1141450
eGambit Unsafe.AI_Score_98%
Microsoft Trojan:Win32/Tiggre!rfn
Arcabit Generic.Ransom.Matrix.2BA1A421
ZoneAlarm HEUR:Trojan-Ransom.Win32.Generic
GData Win32.Trojan-Ransom.Matrix.A
AhnLab-V3 Trojan/Win32.Matrix.C2428826
McAfee Ransom-Matrix.a
MAX malware (ai score=100)
VBA32 Trojan.Downloader
Malwarebytes Malware.Heuristic.1003
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom.Win32.MATRIX.AQDED
Rising Ransom.Matrix!8.E664 (CLOUD)
Ikarus Trojan-Ransom.Matrix
MaxSecure Trojan.Malware.10307848.susgen
Fortinet W32/Generic.D!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Tiggre.HwsBtUMA

How to remove Win32/Filecoder.LockedFile.D 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 Win32/Filecoder.LockedFile.D 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.LockedFile.D 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/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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