Win32/Filecoder.HydraCrypt.G

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Win32/Filecoder.HydraCrypt.G infection?

In this post you will find regarding the definition of Win32/Filecoder.HydraCrypt.G and also its adverse impact on your computer. Such ransomware are a form of malware that is clarified by on the internet fraudulences to demand paying the ransom money by a target.

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Most of the instances, Win32/Filecoder.HydraCrypt.G ransomware will certainly instruct its victims to start funds transfer for the purpose of reducing the effects of the modifications that the Trojan infection has actually presented to the sufferer’s gadget.

Win32/Filecoder.HydraCrypt.G 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.
  • 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.
  • Unconventionial language used in binary resources: Turkish;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Attempts to remove evidence of file being downloaded from the Internet;
  • 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;
  • Writes a potential ransom message to disk;
  • Creates a copy of itself;
  • Appends a known Revenge ransomware file extension to files that have been encrypted;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents situated on the sufferer’s hard disk drive — so the sufferer can no more use the information;
  • Preventing normal accessibility to the sufferer’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.G

The most typical networks where Win32/Filecoder.HydraCrypt.G are injected are:

  • By means of phishing emails;
  • As a consequence of individual ending up on a source that organizes a harmful software;

As quickly as the Trojan is efficiently infused, it will certainly either cipher the information on the sufferer’s computer or stop the tool from working in a proper manner – while additionally placing a ransom note that points out the requirement for the targets to impact the settlement for the function of decrypting the documents or bring back the documents system back to the initial problem. In most circumstances, the ransom money note will come up when the customer restarts the COMPUTER after the system has actually currently been damaged.

Win32/Filecoder.HydraCrypt.G circulation channels.

In different corners of the globe, Win32/Filecoder.HydraCrypt.G expands by leaps and also bounds. Nonetheless, the ransom money notes as well as tricks of obtaining the ransom quantity may differ relying on certain local (local) setups. The ransom notes and also techniques of extorting the ransom money amount may vary depending on particular local (local) settings.

Ransomware injection

For example:

    Faulty informs concerning unlicensed software application.

    In certain areas, the Trojans typically wrongfully report having identified some unlicensed applications allowed on the victim’s tool. The sharp after that requires the user to pay the ransom.

    Faulty declarations concerning unlawful content.

    In nations where software program piracy is much less prominent, this technique is not as efficient for the cyber frauds. Conversely, the Win32/Filecoder.HydraCrypt.G popup alert may wrongly assert to be originating from a law enforcement establishment as well as will certainly report having situated kid porn or other unlawful information on the device.

    Win32/Filecoder.HydraCrypt.G popup alert might falsely declare to be acquiring from a regulation enforcement institution as well as will report having located kid porn or other prohibited information on the gadget. The alert will likewise consist of a need for the customer to pay the ransom.

Technical details

File Info:

crc32: C1AA129C
md5: 3bceadd4c2c546aba24e24307f1defcd
name: 3BCEADD4C2C546ABA24E24307F1DEFCD.mlw
sha1: 81e4110a72821a1b1f01a3f3a8bf89188af40067
sha256: 8ab65ceef6b8a5d2d0c0fb3ddbe1c1756b5c224bafc8065c161424d63937721c
sha512: fbe80ee6902b76a533e8662e580cf887e7a6735752731a53a6189d7b8c1e1c7c881d817a137c3553ab1b6f40c673887d83460d35d01ad0ace18a89c7f5bea525
ssdeep: 1536:eEzTqjcZdskFrWcN9JsWjcdZB+TMKVu0CcqDuvn+FsN7S1bdQlBrr2DYLN:bzocZGgrh92ZYTMKEHD0nj21bd01N
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Marquardt-Littel, Security Product
ProductVersion: 13.16.19.10
FileDescription: Marquardt-Littel, Security Product
FileVersion: 13.16.19.10
CompanyName: Marquardt-Littel, Security Product
Translation: 0x047e 0x04b0

Win32/Filecoder.HydraCrypt.G also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.Common.35DFA666
K7AntiVirus Trojan ( 00508c961 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.10477
Cynet Malicious (score: 100)
ALYac Trojan.Ransom.REVENGE
Cylance Unsafe
Zillya Trojan.Reconyc.Win32.19551
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/generic.ali2000010
K7GW Trojan ( 00508c961 )
Cybereason malicious.4c2c54
Symantec Ransom.Troldesh
ESET-NOD32 Win32/Filecoder.HydraCrypt.G
APEX Malicious
Avast FileRepMalware
Kaspersky Trojan.Win32.Reconyc.huvf
BitDefender Gen:Variant.Ransom.CryptoMix.3
NANO-Antivirus Trojan.Win32.Reconyc.faqpnm
ViRobot Trojan.Win32.Ransom.116224.A
MicroWorld-eScan Gen:Variant.Ransom.CryptoMix.3
Tencent Malware.Win32.Gencirc.114a2d29
Ad-Aware Gen:Variant.Ransom.CryptoMix.3
Sophos ML/PE-A + Troj/CrShield-B
Comodo Malware@#3nuvy7hdiwiu7
BitDefenderTheta Gen:NN.ZexaF.34608.hq0@aqumJmeO
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CRYPAURA.SMRV
McAfee-GW-Edition BehavesLike.Win32.Generic.ch
FireEye Generic.mg.3bceadd4c2c546ab
Emsisoft Gen:Variant.Ransom.CryptoMix.3 (B)
SentinelOne Static AI – Malicious PE
Webroot W32.Reconyc.Huvf
Avira TR/Crypt.XPACK.Gen7
eGambit Unsafe.AI_Score_99%
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft Ransom:Win32/FileCryptor
Arcabit Trojan.Ransom.CryptoMix.3
AegisLab Trojan.Win32.Reconyc.toCg
GData Gen:Variant.Ransom.CryptoMix.3
TACHYON Ransom/W32.Revenge.116224
AhnLab-V3 Trojan/Win32.Crypted.C1859520
McAfee Trojan-FLTV!3BCEADD4C2C5
MAX malware (ai score=100)
VBA32 Trojan.Reconyc
Panda Trj/CI.A
TrendMicro-HouseCall Ransom_CRYPAURA.SMRV
Rising Trojan.Cryptoshield!1.A960 (KTSE)
Yandex Trojan.GenAsa!kiNvUdUnXlE
Ikarus Trojan.Win32.Filecoder
Fortinet W32/Kryptik.FPVS!tr
AVG FileRepMalware
Paloalto generic.ml
Qihoo-360 Win32/TrojanSpy.Reconyc.HwoCKhsA

How to remove Win32/Filecoder.HydraCrypt.G 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.

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.HydraCrypt.G 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.G 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/comparison

About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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