Win32:BackdoorX-gen [Trj]

What is Win32:BackdoorX-gen [Trj] infection?

In this short article you will discover regarding the definition of Win32:BackdoorX-gen [Trj] and also its adverse impact on your computer system. Such ransomware are a type of malware that is specified by online fraudulences to require paying the ransom by a target.

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Most of the cases, Win32:BackdoorX-gen [Trj] ransomware will certainly instruct its victims to start funds transfer for the objective of reducing the effects of the amendments that the Trojan infection has actually presented to the sufferer’s tool.

Win32:BackdoorX-gen [Trj] Summary

These adjustments 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);
  • Presents an Authenticode digital signature;
  • 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 created a hidden window;
  • Uses Windows utilities for basic functionality;
  • Executed a process and injected code into it, probably while unpacking;
  • 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
  • Ciphering the papers situated on the target’s disk drive — so the victim can no more use the data;
  • Preventing routine accessibility to the target’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:BackdoorX-gen [Trj]

One of the most normal channels through which Win32:BackdoorX-gen [Trj] Ransomware Trojans are infused are:

  • By ways of phishing emails;
  • As a repercussion of individual winding up on a resource that holds 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 avoid the tool from working in a proper manner – while also putting a ransom money note that mentions the need for the sufferers to impact the payment for the purpose of decrypting the records or recovering the data system back to the preliminary problem. In many instances, the ransom note will certainly come up when the client reboots the COMPUTER after the system has actually already been harmed.

Win32:BackdoorX-gen [Trj] distribution channels.

In different corners of the world, Win32:BackdoorX-gen [Trj] expands by leaps and bounds. However, the ransom money notes and also techniques of extorting the ransom money amount might differ relying on particular regional (regional) setups. The ransom money notes and methods of obtaining the ransom money quantity may differ depending on particular regional (local) setups.

Ransomware injection

For example:

    Faulty alerts concerning unlicensed software program.

    In certain areas, the Trojans commonly wrongfully report having detected some unlicensed applications allowed on the victim’s tool. The alert after that demands the individual to pay the ransom.

    Faulty declarations about illegal web content.

    In nations where software program piracy is much less prominent, this technique is not as effective for the cyber scams. Conversely, the Win32:BackdoorX-gen [Trj] popup alert may incorrectly claim to be originating from a police establishment and will certainly report having situated kid porn or various other prohibited data on the tool.

    Win32:BackdoorX-gen [Trj] popup alert might incorrectly assert to be deriving from a legislation enforcement institution and also will report having situated youngster pornography or other illegal information on the tool. The alert will in a similar way contain a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: C172C7EB
md5: bf31bf87450d9fdb3091e5210ee0af63
name: BF31BF87450D9FDB3091E5210EE0AF63.mlw
sha1: 5b50d30a9980bec43d54382f13d02ffdbb46b0a0
sha256: 2ad60f1c385edac9cc72c870f4ac499c5436a93de2d65e4820a37f7c7f081bf5
sha512: c91ac4e4142406b8836bc1d7bc893f7bbdd0d68ed80bffdd959f4f0c92216c5fd206fba1f7c5deda4abd94e737aad15c87254057ddaac785351576f6b85fcd8f
ssdeep: 6144:WsVdYa8V57vikjhS3Gjvv2yTgEeSye53k:YaQhyGjvv2y8Eoeq
type: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32:BackdoorX-gen [Trj] also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKD.35372177
FireEye Generic.mg.bf31bf87450d9fdb
ALYac Trojan.GenericKD.35372177
Cylance Unsafe
Sangfor Malware
BitDefender Trojan.GenericKD.35372177
Cyren W32/Qbot.AO.gen!Eldorado
APEX Malicious
Avast Win32:BackdoorX-gen [Trj]
Rising Trojan.Generic@ML.80 (RDML:/TJ2b8+25hfWMgfAOgrd8g)
Ad-Aware Trojan.GenericKD.35372177
Emsisoft MalCert.A (A)
F-Secure Trojan.TR/AD.Qbot.pndsj
DrWeb BackDoor.Qbot.550
McAfee-GW-Edition BehavesLike.Win32.VirRansom.dm
Sophos ML/PE-A + Mal/EncPk-APW
Avira TR/AD.Qbot.pndsj
Microsoft Trojan:Win32/Qakbot.AVP!MSR
Gridinsoft Ransom.Win32.Wacatac.oa!s1
Arcabit Trojan.Generic.D21BBC91
GData Trojan.GenericKD.35372177
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Qakbot.R356580
McAfee W32/PinkSbot-HE!BF31BF87450D
MAX malware (ai score=86)
VBA32 BScope.Backdoor.Qbot
Malwarebytes Backdoor.Qbot
ESET-NOD32 Win32/Qbot.CU
TrendMicro-HouseCall TROJ_GEN.R06CH0AKP20
Fortinet W32/Qbot.CU!tr
AVG Win32:BackdoorX-gen [Trj]
Paloalto generic.ml
Qihoo-360 Generic/HEUR/QVM39.1.7F26.Malware.Gen

How to remove Win32:BackdoorX-gen [Trj] 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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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 Win32:BackdoorX-gen [Trj] 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:BackdoorX-gen [Trj] 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/products/

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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