Written by Robert Bailey

What is TrojanDownloader:Win32/VB.YJ!bit infection?

In this post you will locate about the meaning of TrojanDownloader:Win32/VB.YJ!bit as well as its negative impact on your computer system. Such ransomware are a kind 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 cases, TrojanDownloader:Win32/VB.YJ!bit infection will advise its sufferers to initiate funds move for the purpose of neutralizing the changes that the Trojan infection has introduced to the target’s device.

TrojanDownloader:Win32/VB.YJ!bit Summary

These adjustments can be as follows:

  • 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.
  • Attempts to connect to a dead IP:Port (4 unique times);
  • A process attempted to delay the analysis task.;
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • Performs some HTTP requests;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers found on the victim’s hard disk — so the victim can no longer make use of the information;
  • Preventing regular 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 Trojan[Ransom]/NSIS.Onion Trojan[Ransom]/NSIS.Onion Trojan[Ransom]/NSIS.Onion


The most typical networks through which TrojanDownloader:Win32/VB.YJ!bit Ransomware are infused are:

  • By ways of phishing emails;
  • As a consequence of customer ending up on a source that organizes a malicious software program;

As soon as the Trojan is efficiently infused, it will certainly either cipher the data on the target’s PC or protect against the gadget from working in a proper manner – while likewise putting a ransom money note that mentions the requirement for the targets to effect the payment for the purpose of decrypting the files or recovering the data system back to the initial condition. In a lot of circumstances, the ransom money note will turn up when the customer restarts the PC after the system has currently been damaged.

TrojanDownloader:Win32/VB.YJ!bit distribution channels.

In different corners of the world, TrojanDownloader:Win32/VB.YJ!bit expands by jumps as well as bounds. However, the ransom money notes and also methods of extorting the ransom money quantity may vary depending upon specific neighborhood (regional) settings. The ransom notes and also methods of obtaining the ransom amount might vary depending on certain regional (regional) setups.

Ransomware injection

For example:

    Faulty signals about unlicensed software.

    In certain locations, the Trojans frequently wrongfully report having spotted some unlicensed applications allowed on the victim’s device. The alert after that demands the individual to pay the ransom money.

    Faulty statements regarding prohibited web content.

    In nations where software piracy is much less popular, this approach is not as efficient for the cyber fraudulences. Alternatively, the TrojanDownloader:Win32/VB.YJ!bit popup alert may falsely assert to be stemming from a police institution as well as will certainly report having located child porn or various other illegal data on the device.

    TrojanDownloader:Win32/VB.YJ!bit popup alert may wrongly assert to be acquiring from a law enforcement establishment and also will certainly report having situated child pornography or other prohibited information on the device. The alert will likewise include a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 6342D605
md5: 521be5e581637d5a7b6c3c29b0544f7b
name: 521BE5E581637D5A7B6C3C29B0544F7B.mlw
sha1: 9bc4bf9dd2a1a0f871b59840947d2f1868c8adad
sha256: dcff1d0b3138be4a6bbf8dfc2fd281e5c8da013f644920a5bb024501dcfec9d6
sha512: a66d5da125c921d7867132a69e1eb7f789f102ef3f4c8040c93924b56f149a3e21a9d36d304b3e5a9c5207e16708aa451397735d99da0d815478f58fd9580c80
ssdeep: 96:/lxqEv4nIml51p2ahsDG7Wn+o4LaAhW5qSgEO2fi:/TNgnImlQGQ+5aESLOj
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0407 0x04b0
ProductVersion: 1.00
InternalName: Security_Downloader
FileVersion: 1.00
OriginalFilename: Security_Downloader.exe
ProductName: Security_Downloader

TrojanDownloader:Win32/VB.YJ!bit also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectVM.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Trojan.Downloader.bm1@a88oPur
McAfee Trojan-FHYU!521BE5E58163
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Malware
K7AntiVirus Trojan-Downloader ( 004e05051 )
BitDefender Gen:Trojan.Downloader.bm1@a88oPur
K7GW Trojan-Downloader ( 004e05051 )
Cybereason malicious.581637
Cyren W32/Trojan.NWVK-3392
Symantec Trojan.Klovbot
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Malware.Onion-7586909-0
Kaspersky HEUR:Trojan.Win32.Generic
Rising Downloader.VB!8.1EB (TFE:3:QI2heKLvEOV)
Ad-Aware Gen:Trojan.Downloader.bm1@a88oPur
Emsisoft Gen:Trojan.Downloader.bm1@a88oPur (B)
F-Secure Trojan.TR/Zusy.lasd
DrWeb Trojan.DownLoader21.34793
Zillya Downloader.Agent.Win32.292950
TrendMicro TROJ_ZUSY_FC140222.UVPM
McAfee-GW-Edition Trojan-FHYU!521BE5E58163
Ikarus Trojan-Downloader.Win32.VB
Jiangmin Trojan.NSIS.jx
Avira TR/Zusy.lasd
Antiy-AVL Trojan[Ransom]/NSIS.Onion
Microsoft TrojanDownloader:Win32/VB.YJ!bit
Arcabit Trojan.Downloader.EE8FF3
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Gen:Trojan.Downloader.bm1@a88oPur
Cynet Malicious (score: 85)
AhnLab-V3 Malware/Win32.Generic.C1322990
BitDefenderTheta AI:Packer.97C9DB801E
ALYac Gen:Trojan.Downloader.bm1@a88oPur
MAX malware (ai score=80)
Malwarebytes Trojan.Downloader
Panda Trj/Genetic.gen
ESET-NOD32 Win32/TrojanDownloader.VB.QXD
TrendMicro-HouseCall TROJ_ZUSY_FC140222.UVPM
Tencent Malware.Win32.Gencirc.114b3bd1
Yandex Trojan.Onion!ZGegkkxv+fM
SentinelOne Static AI – Malicious PE
Fortinet W32/Generic.AC.3380174
AVG Win32:Malware-gen
CrowdStrike win/malicious_confidence_80% (D)
Qihoo-360 Win32/Trojan.b36

How to remove TrojanDownloader:Win32/VB.YJ!bit ransomware?

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

The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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 TrojanDownloader:Win32/VB.YJ!bit 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 TrojanDownloader:Win32/VB.YJ!bit 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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