Win32/Filecoder.HydraCrypt.J

What is Win32/Filecoder.HydraCrypt.J infection?

In this article you will certainly discover about the meaning of Win32/Filecoder.HydraCrypt.J as well as its adverse influence on your computer system. Such ransomware are a form of malware that is clarified by online fraudulences to demand paying the ransom money by a victim.

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In the majority of the situations, Win32/Filecoder.HydraCrypt.J infection will certainly advise its targets to initiate funds move for the objective of neutralizing the modifications that the Trojan infection has actually introduced to the victim’s gadget.

Win32/Filecoder.HydraCrypt.J Summary

These modifications can be as adheres to:

  • 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.
  • 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.
  • A process created a hidden window;
  • 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;
  • Attempts to delete volume shadow copies;
  • Attempts to stop active services;
  • Modifies boot configuration settings;
  • 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;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • 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 records situated on the victim’s hard disk — so the target can no more make use of 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.HydraCrypt.J

The most common channels through which Win32/Filecoder.HydraCrypt.J Ransomware are infused are:

  • By means of phishing emails;
  • As a repercussion of individual winding up on a resource that organizes a destructive software application;

As soon as the Trojan is effectively injected, it will certainly either cipher the data on the victim’s PC or stop the tool from operating in an appropriate fashion – while also putting a ransom note that states the requirement for the victims to impact the payment for the purpose of decrypting the documents or bring back the documents system back to the initial condition. In many instances, the ransom money note will come up when the client restarts the COMPUTER after the system has currently been harmed.

Win32/Filecoder.HydraCrypt.J circulation channels.

In various edges of the globe, Win32/Filecoder.HydraCrypt.J expands by leaps and bounds. However, the ransom notes and tricks of obtaining the ransom quantity may vary depending on particular regional (local) settings. The ransom notes and techniques of extorting the ransom money amount may differ depending on specific regional (local) settings.

Ransomware injection

For instance:

    Faulty notifies about unlicensed software.

    In certain locations, the Trojans typically wrongfully report having found some unlicensed applications allowed on the target’s device. The sharp after that demands the customer to pay the ransom money.

    Faulty statements regarding unlawful web content.

    In countries where software piracy is much less popular, this method is not as reliable for the cyber fraudulences. Alternatively, the Win32/Filecoder.HydraCrypt.J popup alert might incorrectly claim to be stemming from a police institution and will report having located child porn or various other illegal data on the tool.

    Win32/Filecoder.HydraCrypt.J popup alert might falsely declare to be acquiring from a regulation enforcement establishment as well as will certainly report having situated kid porn or various other prohibited data on the device. The alert will likewise include a need for the customer to pay the ransom money.

Technical details

File Info:

crc32: FA67CAC6
md5: 3c364f0eef75980ea70f290544b53a86
name: 3C364F0EEF75980EA70F290544B53A86.mlw
sha1: 838626b9dd3d14ee40d27b9c07377e587dd460d7
sha256: 9d940faee72e6dabdf2e5a11299188dc501d259e4a3931ee3e01ae9e225866bf
sha512: 914a71e4daeed4b301435d36396988b21096587845d13cc3088f685badbbe37ddb4bf4202a4f9229b4f8728483e6ef9ae87d2af92b512a5e7a2b2df84cd809a5
ssdeep: 768:P+w/HeysDPOTF6e6ypV9LjWAsvGp4vIUhlSPsGTxhGkFYz3yF/JnJYy:tveysDAYe6y5ubGp4wSArxh/u3yL
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Oren Music Copyright (C) 2017
InternalName: Oren Music
FileVersion: 1.2.3.1
CompanyName: Oren Music
ProductName: Oren Music
ProductVersion: 1.2.3.1
FileDescription: Oren Music
OriginalFilename: Oren Music
Translation: 0x0483 0x04b0

Win32/Filecoder.HydraCrypt.J also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0051123e1 )
DrWeb Trojan.DownLoader25.4729
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Noob.A4
ALYac Trojan.Ransom.Mole
Cylance Unsafe
Zillya Trojan.Fury.Win32.141
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/Wraut.f603f92b
K7GW Trojan ( 0051123e1 )
Cybereason malicious.eef759
Cyren W32/Trojan.PRDK-5289
Symantec Ransom.Arena
ESET-NOD32 Win32/Filecoder.HydraCrypt.J
Zoner Trojan.Win32.60155
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Fury.in
BitDefender Trojan.RanSerKD.5540119
NANO-Antivirus Trojan.Win32.Fury.eqpqwt
ViRobot Trojan.Win32.Agent.63488.AN
SUPERAntiSpyware Ransom.Mole/Variant
MicroWorld-eScan Trojan.RanSerKD.5540119
Tencent Win32.Trojan.Raas.Auto
Ad-Aware Trojan.RanSerKD.5540119
Sophos Mal/Generic-R + Troj/Ransom-EOT
Comodo Malware@#2u2yhg8cbjtdv
BitDefenderTheta Gen:NN.ZexaF.34608.dq0@aC1kx!hi
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CRYPAURA.F117G4
McAfee-GW-Edition BehavesLike.Win32.Emotet.kh
FireEye Generic.mg.3c364f0eef75980e
Emsisoft Trojan.RanSerKD.5540119 (B)
SentinelOne Static AI – Malicious PE
Webroot W32.Trojan.Gen
Avira TR/Crypt.XPACK.eibgd
eGambit Unsafe.AI_Score_99%
Kingsoft Win32.Troj.RanSerKD.v.(kcloud)
Microsoft Trojan:Win32/Wraut.A
Arcabit Trojan.RanSerKD.D548917
AegisLab Trojan.Win32.Generic.4!c
GData Win32.Trojan.Agent.SZFCHC
TACHYON Trojan/W32.Agent.63488.AVV
AhnLab-V3 Trojan/Win32.Skeeyah.C2031853
McAfee Generic.acq
MAX malware (ai score=100)
VBA32 BScope.TrojanRansom.Cryrar
Panda Trj/RansomCrypt.K
TrendMicro-HouseCall Ransom_CRYPAURA.F117G4
Rising Trojan.Filecoder!8.68 (KTSE)
Yandex Trojan.Fury!OaYkDNby6AA
Ikarus Trojan-Ransom.Fury
Fortinet W32/Generic!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Fury.HxQBf1kA

How to remove Win32/Filecoder.HydraCrypt.J 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.

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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.HydraCrypt.J 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.HydraCrypt.J 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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