Ransom:Win32/HydraCrypt.A

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

What is Ransom:Win32/HydraCrypt.A infection?

In this post you will locate about the definition of Ransom:Win32/HydraCrypt.A as well as its unfavorable influence on your computer system. Such ransomware are a type of malware that is elaborated by on the internet frauds to demand paying the ransom by a victim.

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Most of the situations, Ransom:Win32/HydraCrypt.A virus will certainly advise its targets to launch funds transfer for the purpose of counteracting the changes that the Trojan infection has actually introduced to the target’s device.

Ransom:Win32/HydraCrypt.A Summary

These alterations 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.
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • Performs some HTTP requests;
  • 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;
  • 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;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • Attempts to interact with an Alternate Data Stream (ADS);
  • Appends a known CryptoMix 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 files found on the target’s hard drive — so the sufferer can no more use the information;
  • Preventing routine access to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.
Similar behavior
Related domains
msn.comGen:Variant.Ransom.HydraCrypt.8
yahoo.comGen:Variant.Ransom.HydraCrypt.8

Ransom:Win32/HydraCrypt.A

The most common channels where Ransom:Win32/HydraCrypt.A are injected are:

  • By ways of phishing e-mails;
  • As a repercussion of user ending up on a resource that organizes a malicious software program;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the data on the victim’s PC or protect against the tool from functioning in an appropriate way – while likewise putting a ransom note that states the demand for the targets to effect the repayment for the function of decrypting the papers or recovering the documents system back to the initial condition. In most instances, the ransom note will come up when the customer restarts the COMPUTER after the system has actually already been damaged.

Ransom:Win32/HydraCrypt.A distribution channels.

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

Ransomware injection

For instance:

    Faulty alerts about unlicensed software.

    In certain areas, the Trojans frequently wrongfully report having detected some unlicensed applications made it possible for on the sufferer’s device. The sharp then demands the customer to pay the ransom money.

    Faulty statements concerning prohibited web content.

    In countries where software piracy is much less prominent, this method is not as reliable for the cyber scams. Alternatively, the Ransom:Win32/HydraCrypt.A popup alert might wrongly declare to be originating from a law enforcement institution and also will report having located kid pornography or various other unlawful data on the gadget.

    Ransom:Win32/HydraCrypt.A popup alert may falsely assert to be deriving from a regulation enforcement organization as well as will certainly report having situated youngster porn or various other illegal information on the device. The alert will likewise consist of a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: 9930B5ED
md5: bf658bb35db5120af0032a4a9a4bd01b
name: BF658BB35DB5120AF0032A4A9A4BD01B.mlw
sha1: d5d15d9a2869d21a47e9c051830b0fa084ed8dd6
sha256: a074a072322f2fac9630b631dcf98e9634e46857de8f5a479988aac5410cb33d
sha512: 695473a7bf2e6be36200de0458d414a605de76802f918090b8ef436685e8cb1e6c27b19a12bb198eb5dbfa48bc55ea6e4e065a656c84ae209c2ce47244ab33db
ssdeep: 1536:Q//OM2QRKLbuZeI+PFBQb8zQETYw5eYFobq3BF+wY86G+wrsPxehj6zg77OmFEi:Q//OM9KLeGiIsW5ecobq37v6OsPxeEz
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 1998 - 2016
InternalName: MS Soft SecurityFiles. (C)
FileVersion: 6 ,8, 4, 2
ProductName: MS Soft SecurityFiles. (C)
ProductVersion: 6 ,8, 4, 2
FileDescription: MS Soft SecurityFiles. (C)
OriginalFilename: MS Soft SecurityFiles. (C)
Translation: 0x100a 0x04e3

Ransom:Win32/HydraCrypt.A also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
MicroWorld-eScanGen:Variant.Ransom.HydraCrypt.8
FireEyeGeneric.mg.bf658bb35db5120a
CAT-QuickHealRansom.Hydracrypt.A5
McAfeeRansom-FBX!BF658BB35DB5
CylanceUnsafe
VIPREBehavesLike.Win32.Malware.rwx (mx-v)
AegisLabTrojan.Win32.Generic.4!c
SangforTrojan.Win32.Save.a
K7AntiVirusTrojan ( 005025e81 )
BitDefenderGen:Variant.Ransom.HydraCrypt.8
K7GWTrojan ( 005025e81 )
CrowdStrikewin/malicious_confidence_100% (D)
SymantecML.Attribute.HighConfidence
APEXMalicious
AvastWin32:Malware-gen
KasperskyHEUR:Trojan.Win32.Generic
AlibabaTrojan:Win32/Kryptik.0942227d
NANO-AntivirusTrojan.Win32.Encoder.evqfzz
TencentWin32.Trojan.Generic.Pijt
Ad-AwareGen:Variant.Ransom.HydraCrypt.8
EmsisoftGen:Variant.Ransom.HydraCrypt.8 (B)
ComodoMalware@#2jlyuo14su1ma
F-SecureHeuristic.HEUR/AGEN.1127116
DrWebTrojan.Encoder.4513
McAfee-GW-EditionBehavesLike.Win32.MultiPlug.nc
SophosTroj/CrShield-A
IkarusTrojan.Win32.Crypt
JiangminTrojan.Generic.btklm
AviraHEUR/AGEN.1127116
MAXmalware (ai score=100)
Antiy-AVLTrojan/Win32.AGeneric
MicrosoftRansom:Win32/HydraCrypt.A
ArcabitTrojan.Ransom.HydraCrypt.8
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataGen:Variant.Ransom.HydraCrypt.8
CynetMalicious (score: 100)
AhnLab-V3Win-Trojan/CryptoMix.Gen
BitDefenderThetaGen:NN.ZexaF.34590.fu0@aaUM@khi
ALYacGen:Variant.Ransom.HydraCrypt.8
VBA32BScope.Trojan.Encoder
MalwarebytesMalware.AI.732318909
PandaTrj/CI.A
ESET-NOD32a variant of Win32/Kryptik.FMTW
RisingRansom.HydraCrypt!8.864F (CLOUD)
YandexTrojan.Agent!/oGu4KqAUBU
SentinelOneStatic AI – Malicious PE
eGambitUnsafe.AI_Score_99%
FortinetW32/HydraCrypt.E!tr.ransom
AVGWin32:Malware-gen
Cybereasonmalicious.35db51
Paloaltogeneric.ml
Qihoo-360Win32/Trojan.Ransom.7ad

How to remove Ransom:Win32/HydraCrypt.A 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.

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 Ransom:Win32/HydraCrypt.A 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Ransom:Win32/HydraCrypt.A 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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