Written by Robert Bailey

What is Win32/Bflient.Y infection?

In this post you will certainly discover about the interpretation of Win32/Bflient.Y and also its adverse influence on your computer. Such ransomware are a form of malware that is specified by on the internet frauds to require paying the ransom money by a target.

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Most of the situations, Win32/Bflient.Y virus will advise its victims to start funds transfer for the purpose of reducing the effects of the changes that the Trojan infection has introduced to the target’s tool.

Win32/Bflient.Y Summary

These alterations 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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: Russian;
  • 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 process and injected code into it, probably while unpacking;
  • 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!
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Creates a copy of itself;
  • Ciphering the papers found on the target’s hard disk drive — so the sufferer can no longer utilize the data;
  • Preventing normal 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.


The most regular channels whereby Win32/Bflient.Y are infused are:

  • By ways of phishing e-mails;
  • As an effect of individual winding up on a resource that organizes a harmful software application;

As soon as the Trojan is effectively infused, it will certainly either cipher the information on the target’s PC or avoid the tool from working in a proper way – while additionally putting a ransom money note that states the requirement for the victims to effect the settlement for the function of decrypting the papers or recovering the documents system back to the initial condition. In the majority of circumstances, the ransom note will certainly come up when the client reboots the PC after the system has actually currently been harmed.

Win32/Bflient.Y circulation channels.

In different corners of the world, Win32/Bflient.Y grows by leaps as well as bounds. Nonetheless, the ransom money notes as well as techniques of extorting the ransom money amount may vary relying on specific neighborhood (local) settings. The ransom notes as well as techniques of obtaining the ransom money quantity might vary depending on particular neighborhood (regional) settings.

Ransomware injection

As an example:

    Faulty informs concerning unlicensed software application.

    In certain areas, the Trojans typically wrongfully report having actually discovered some unlicensed applications made it possible for on the target’s tool. The sharp after that demands the user to pay the ransom money.

    Faulty statements concerning unlawful material.

    In countries where software program piracy is much less preferred, this method is not as effective for the cyber frauds. Conversely, the Win32/Bflient.Y popup alert might incorrectly claim to be deriving from a law enforcement establishment and also will certainly report having situated youngster porn or various other prohibited information on the device.

    Win32/Bflient.Y popup alert might falsely declare to be obtaining from a law enforcement institution and also will certainly report having located youngster porn or other unlawful data on the tool. The alert will similarly include a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 26B552C3
md5: e097b278544ff1d270888f5d13050273
name: E097B278544FF1D270888F5D13050273.mlw
sha1: 4cfd35e8d19e11fe79ffc291970e35e30e1bb9df
sha256: 9018d254059ba5cb59d49e27ad884f74e00be8cdc6fcc0c74021ff0ed3dd2c45
sha512: da1ac284bf4e2b0e570dc6b51519def4435b5f1cffe864e17213ad5b73b3aafa0989d8044b6e6b8b3078da05762f1f028813d446526172140b202367e02e95f7
ssdeep: 3072:+7NvdJmKL+XLZIluxpTJJIhtuP0s1NqvrU0Y:+7Nv/L+mlc5DwtS1NqjUp
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

LegalCopyright: Copyright xa9 Oyrqa Software 2004-2008
InternalName: Oyrqa
FileVersion: 355
CompanyName: NLU SOFTWIN
ProductName: Oyrqa Juyjmo Yvvyywf
ProductVersion: 5.1
FileDescription: NLU BitDefender
OriginalFilename: Oyrqa.exe
Translation: 0x0409 0x04e4

Win32/Bflient.Y also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.SasfisQKC.Fam.Trojan
Elastic malicious (high confidence)
DrWeb Win32.HLLW.Autoruner.44048
ClamAV Win.Worm.Palevo-23650
ALYac Gen:Variant.Kazy.25456
Cylance Unsafe
Zillya Trojan.Generic.Win32.467204
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_90% (D)
Alibaba Worm:Win32/Rimecud.d09edc50
K7GW Trojan ( f1000f011 )
K7AntiVirus Trojan ( f1000f011 )
Cyren W32/S-15775a7c!Eldorado
Symantec Trojan.Ransomlock!gen4
ESET-NOD32 Win32/Bflient.Y
Zoner Trojan.Win32.29553
APEX Malicious
Avast Win32:Virut-ASO
Cynet Malicious (score: 100)
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Kazy.25456
NANO-Antivirus Trojan.Win32.Crypted.dfnjm
ViRobot Trojan.Win32.Kazy.84992
SUPERAntiSpyware Trojan.Agent/Gen-Falprod[Cont]
MicroWorld-eScan Gen:Variant.Kazy.25456
Tencent Malware.Win32.Gencirc.10b62948
Ad-Aware Gen:Variant.Kazy.25456
Sophos ML/PE-A + Mal/Zbot-CX
Comodo Malware@#3jtixorufqzkn
BitDefenderTheta Gen:NN.ZexaF.34678.gmKfa0Z97zkc
VIPRE Trojan.Win32.Generic!BT
Emsisoft Gen:Variant.Kazy.25456 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Worm/Palevo.cajr
Webroot W32.Trojan.Ransomlock
Avira TR/Crypt.XPACK.Gen
eGambit Generic.Malware
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Trojan:Win32/Ditertag.A
Arcabit Trojan.Kazy.D6370
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Gen:Variant.Kazy.25456
AhnLab-V3 Trojan/Win32.Kazy.C20127
Acronis suspicious
McAfee Artemis!E097B278544F
MAX malware (ai score=99)
VBA32 BScope.Trojan-Dropper.TDSS.01313
Malwarebytes Sality.Virus.FileInfector.DDS
Panda Trj/Genetic.gen
TrendMicro-HouseCall TROJ_ZKRYPT.SMIH
Rising Virus.Virut!8.44 (CLOUD)
Yandex Trojan.GenAsa!PIKaOg7AuE4
Ikarus Trojan.Win32.Sasfis
Fortinet W32/Menti.IEP!tr
AVG Win32:Virut-ASO
Qihoo-360 HEUR/Malware.QVM11.Gen

How to remove Win32/Bflient.Y 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/Bflient.Y 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 Win32/Bflient.Y you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site:
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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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