Win32/Filecoder.HydraCrypt.M

What is Win32/Filecoder.HydraCrypt.M infection?

In this post you will certainly find about the meaning of Win32/Filecoder.HydraCrypt.M and its negative impact on your computer system. Such ransomware are a form of malware that is elaborated by on the internet scams to require paying the ransom by a victim.

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Most of the cases, Win32/Filecoder.HydraCrypt.M infection will certainly instruct its targets to launch funds transfer for the objective of counteracting the modifications that the Trojan infection has presented to the target’s gadget.

Win32/Filecoder.HydraCrypt.M Summary

These adjustments 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.
  • Compression (or decompression);
  • 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;
  • Unconventionial language used in binary resources: Danish;
  • 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
  • Creates a copy of itself;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the files located on the victim’s hard disk drive — so the sufferer can no longer use the data;
  • Preventing normal accessibility to the victim’s workstation;

Win32/Filecoder.HydraCrypt.M

The most regular networks whereby Win32/Filecoder.HydraCrypt.M are injected are:

  • By methods of phishing emails;
  • As a repercussion of individual ending up on a resource that organizes a harmful software program;

As soon as the Trojan is effectively injected, it will certainly either cipher the data on the target’s PC or avoid the tool from working in a proper manner – while additionally putting a ransom note that points out the demand for the sufferers to impact the payment for the purpose of decrypting the records or restoring the documents system back to the initial condition. In the majority of instances, the ransom money note will certainly show up when the client reboots the PC after the system has currently been damaged.

Win32/Filecoder.HydraCrypt.M circulation networks.

In numerous edges of the globe, Win32/Filecoder.HydraCrypt.M grows by leaps as well as bounds. Nonetheless, the ransom notes and also tricks of obtaining the ransom amount might vary relying on certain regional (local) setups. The ransom notes and also methods of extorting the ransom quantity may vary depending on specific regional (local) setups.

Ransomware injection

For example:

    Faulty signals about unlicensed software application.

    In particular locations, the Trojans often wrongfully report having spotted some unlicensed applications made it possible for on the victim’s tool. The alert after that requires the individual to pay the ransom.

    Faulty statements about prohibited web content.

    In nations where software piracy is less preferred, this approach is not as efficient for the cyber frauds. Additionally, the Win32/Filecoder.HydraCrypt.M popup alert might incorrectly claim to be stemming from a police organization and will certainly report having situated youngster pornography or various other unlawful data on the device.

    Win32/Filecoder.HydraCrypt.M popup alert may wrongly claim to be obtaining from a legislation enforcement organization and will certainly report having located kid porn or other unlawful information on the tool. The alert will in a similar way have a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: 2F3E29CC
md5: 89dcf972fc5b52bcfcc4b00d0fde5c45
name: 89DCF972FC5B52BCFCC4B00D0FDE5C45.mlw
sha1: 29029d0f1c2cb9b4c199874edf8e5d84e4454a60
sha256: 97430aa90417df8e3f84357d6a1ecccdd7e1318b855376d5d28d7f435164d48d
sha512: 4018cd46d9974274cdaf97a134aa96fd5a4ddf95d5ee14a6a43cdb9802d730f0a027341272eb34669d3be1c3ea63aab454fc8c7339126aca61aee72111a983fb
ssdeep: 6144:az4RvfGZJs8BaTiOvMw2QGoyaFmtag4xkanW9K:acv85BaTiOktEfct2
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Filecoder.HydraCrypt.M also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 0051a67e1 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.11008
Cynet Malicious (score: 85)
ALYac Trojan.Ransom.CryptoMix
Cylance Unsafe
Zillya Trojan.Fury.Win32.202
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_90% (D)
Alibaba Ransom:Win32/HydraCrypt.f6597ec1
K7GW Trojan ( 0056e92e1 )
Cybereason malicious.2fc5b5
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/Filecoder.HydraCrypt.M
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Fury.ku
BitDefender Gen:Variant.Symmi.79598
NANO-Antivirus Trojan.Win32.Fury.fnbyxn
MicroWorld-eScan Gen:Variant.Symmi.79598
Tencent Win32.Trojan.Raas.Auto
Ad-Aware Gen:Variant.Symmi.79598
Sophos Mal/Generic-S
Comodo Malware@#29mksyxh4uqux
BitDefenderTheta Gen:NN.ZexaF.34608.sqW@auxeo7kG
VIPRE Trojan.Win32.Generic!BT
TrendMicro Mal_MiliCry-1h
McAfee-GW-Edition BehavesLike.Win32.Dropper.dh
FireEye Generic.mg.89dcf972fc5b52bc
Emsisoft Gen:Variant.Symmi.79598 (B)
SentinelOne Static AI – Malicious PE
Webroot W32.Trojan.GenKD
Avira HEUR/AGEN.1119073
Microsoft Trojan:Win32/Dynamer!rfn
GData Gen:Variant.Symmi.79598
AhnLab-V3 Win-Trojan/Sagecrypt.Gen
Acronis suspicious
McAfee Artemis!89DCF972FC5B
MAX malware (ai score=100)
VBA32 BScope.Trojan.Yakes
Malwarebytes MachineLearning/Anomalous.100%
Panda Trj/CI.A
TrendMicro-HouseCall Mal_MiliCry-1h
Rising Ransom.Fury!8.470A (CLOUD)
Ikarus Trojan-Ransom.GandCrab
Fortinet W32/Kryptik.FNNB!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Fury.HwoChu8A

How to remove Win32/Filecoder.HydraCrypt.M 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.

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Press “Install” button.

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Once installed, Anti-Malware will automatically run.

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Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Win32/Filecoder.HydraCrypt.M 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.

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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.M 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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