VirTool:Win32/Injector!BT

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

What is VirTool:Win32/Injector!BT infection?

In this article you will find about the interpretation of VirTool:Win32/Injector!BT and its adverse effect on your computer. Such ransomware are a type of malware that is clarified by on the internet fraudulences to require paying the ransom money by a sufferer.

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Most of the situations, VirTool:Win32/Injector!BT infection will instruct its sufferers to start funds move for the purpose of reducing the effects of the changes that the Trojan infection has introduced to the sufferer’s tool.

VirTool:Win32/Injector!BT 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.
  • 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.
  • 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.

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Executed a very long command line or script command which may be indicative of chained commands or obfuscation;
  • Uses Windows utilities for basic functionality;
  • Executed a process and injected code into it, probably while unpacking;
  • Detects Sandboxie through the presence of a library;
  • Sniffs keystrokes;
  • 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 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.
  • Operates on local firewall’s policies and settings;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the records located on the sufferer’s disk drive — so the victim can no longer utilize the data;
  • Preventing routine access to the sufferer’s workstation;

VirTool:Win32/Injector!BT

One of the most common networks whereby VirTool:Win32/Injector!BT Ransomware Trojans are infused are:

  • By ways of phishing e-mails;
  • As a consequence of user winding up on a resource that organizes a malicious software application;

As soon as the Trojan is successfully injected, it will certainly either cipher the data on the sufferer’s PC or prevent the device from operating in a proper fashion – while also putting a ransom note that states the need for the victims to impact the repayment for the function of decrypting the files or recovering the file system back to the initial problem. In the majority of circumstances, the ransom note will come up when the client restarts the COMPUTER after the system has already been harmed.

VirTool:Win32/Injector!BT circulation channels.

In various corners of the world, VirTool:Win32/Injector!BT grows by leaps as well as bounds. However, the ransom money notes and also tricks of obtaining the ransom money quantity may differ depending upon certain neighborhood (local) setups. The ransom notes as well as tricks of obtaining the ransom money quantity might differ depending on certain local (local) setups.

Ransomware injection

As an example:

    Faulty informs about unlicensed software application.

    In particular locations, the Trojans usually wrongfully report having discovered some unlicensed applications allowed on the target’s tool. The alert then demands the user to pay the ransom.

    Faulty declarations concerning illegal content.

    In nations where software piracy is less prominent, this technique is not as effective for the cyber frauds. Conversely, the VirTool:Win32/Injector!BT popup alert might incorrectly assert to be stemming from a law enforcement institution and also will report having situated kid porn or other prohibited information on the gadget.

    VirTool:Win32/Injector!BT popup alert might wrongly claim to be acquiring from a law enforcement organization as well as will report having situated kid porn or various other unlawful information on the tool. The alert will similarly consist of a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: 399E0179
md5: c8fc2b9119fc77a020807282d25ccda6
name: C8FC2B9119FC77A020807282D25CCDA6.mlw
sha1: 1ecf9d29096ecf3a4a4c03952d7266c347f7f9e3
sha256: 6b427730600921c044cad9c2682b750a845cc403b9dd1fd979c77e9bd12850fa
sha512: 0304402422a7429d27f7dd431fbb640bf9f5e19903043e4eab5648784312a2af81616d86894cd796f52fea3f15ebd7fe7595aac3493efa81ec0d19673ce993e2
ssdeep: 6144:nndCJXjKlYO3JKLHFbUewTTXdC8n4GXETpi/PFJ8CcFwJ:yzmNZKLHFLQTX88KeF+Vg
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Lunas @ rights_reserved
InternalName: luna_1 .
FileVersion: 3.2.0.0
CompanyName: Lunasoft Inc. Corp
ProductName: Lunas @ rights_reserved
ProductVersion: 3.2.0.0
FileDescription: luna file
OriginalFilename: Lunafiles_ .
Translation: 0x0409 0x04b0

VirTool:Win32/Injector!BT also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 00149d991 )
Elasticmalicious (high confidence)
DrWebTrojan.Inject.51371
CynetMalicious (score: 100)
CAT-QuickHealWorm.Dorkbot.A
ALYacGen:Trojan.ProcessHijack.um1@aWCGzRji
CylanceUnsafe
ZillyaTrojan.VBKrypt.Win32.84588
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
AlibabaRansom:Win32/Injector.0fcb638c
K7GWTrojan ( 00149d991 )
Cybereasonmalicious.119fc7
CyrenW32/S-d2621970!Eldorado
SymantecW32.IRCBot.NG!gen5
ESET-NOD32a variant of Win32/Injector.ITJ
APEXMalicious
AvastWin32:Ruskill-DV [Trj]
KasperskyTrojan-Ransom.Win32.Blocker.vgk
BitDefenderGen:Trojan.ProcessHijack.um1@aWCGzRji
NANO-AntivirusTrojan.Win32.Blocker.esuevd
ViRobotTrojan.Win32.A.VBKrypt.246594
MicroWorld-eScanGen:Trojan.ProcessHijack.um1@aWCGzRji
TencentMalware.Win32.Gencirc.10bad8ea
Ad-AwareGen:Trojan.ProcessHijack.um1@aWCGzRji
SophosMal/Generic-S
ComodoTrojWare.Win32.Buzus.igjq@4ut065
BitDefenderThetaAI:Packer.0B484B7320
VIPRETrojan.Win32.Generic.pak!cobra
McAfee-GW-EditionBehavesLike.Win32.PWSZbot.fc
FireEyeGeneric.mg.c8fc2b9119fc77a0
EmsisoftGen:Trojan.ProcessHijack.um1@aWCGzRji (B)
SentinelOneStatic AI – Malicious PE
AviraTR/Dropper.Gen
MicrosoftVirTool:Win32/Injector.gen!BT
AegisLabTrojan.Win32.Blocker.j!c
GDataGen:Trojan.ProcessHijack.um1@aWCGzRji
AhnLab-V3Trojan/Win32.VBKrypt.R2457
Acronissuspicious
McAfeeGeneric Backdoor.xo
MAXmalware (ai score=100)
VBA32Hoax.Blocker
PandaTrj/Genetic.gen
RisingRansom.Blocker!8.12A (CLOUD)
YandexTrojan.GenAsa!It+7rlBCz7k
IkarusVirus.Win32.VBInject
FortinetW32/Dorkbot.BAA!tr
AVGWin32:Ruskill-DV [Trj]
Paloaltogeneric.ml
Qihoo-360Win32/Ransom.Blocker.HgIASOkA

How to remove VirTool:Win32/Injector!BT 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 VirTool:Win32/Injector!BT 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 VirTool:Win32/Injector!BT 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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