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

What is Backdoor:Win32/Besidy.A!bit infection?

In this article you will find regarding the meaning of Backdoor:Win32/Besidy.A!bit and also its adverse effect on your computer system. Such ransomware are a type of malware that is elaborated by online fraudulences to demand paying the ransom by a sufferer.

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In the majority of the cases, Backdoor:Win32/Besidy.A!bit ransomware will certainly advise its sufferers to initiate funds transfer for the objective of reducing the effects of the amendments that the Trojan infection has introduced to the sufferer’s gadget.

Backdoor:Win32/Besidy.A!bit Summary

These adjustments can be as complies with:

  • Executable code extraction;
  • Unconventionial language used in binary resources: Arabic (Egypt);
  • Network activity detected but not expressed in API logs;
  • Anomalous binary characteristics;
  • Ciphering the files situated on the victim’s hard disk drive — so the sufferer can no more use the data;
  • Preventing regular access to the sufferer’s workstation;


One of the most typical channels through which Backdoor:Win32/Besidy.A!bit Ransomware Trojans are injected are:

  • By methods of phishing emails;
  • As a repercussion of user ending up on a resource that holds a malicious software application;

As quickly as the Trojan is successfully injected, it will certainly either cipher the data on the victim’s PC or avoid the gadget from working in an appropriate manner – while also placing a ransom note that states the demand for the targets to impact the settlement for the purpose of decrypting the records or bring back the documents system back to the first condition. In many instances, the ransom note will certainly show up when the customer restarts the COMPUTER after the system has already been harmed.

Backdoor:Win32/Besidy.A!bit distribution networks.

In numerous corners of the globe, Backdoor:Win32/Besidy.A!bit grows by leaps as well as bounds. Nonetheless, the ransom money notes as well as methods of extorting the ransom money quantity may differ depending on specific local (local) settings. The ransom money notes as well as methods of extorting the ransom amount might vary depending on specific neighborhood (local) setups.

Ransomware injection

As an example:

    Faulty alerts concerning unlicensed software program.

    In certain areas, the Trojans frequently wrongfully report having actually identified some unlicensed applications allowed on the victim’s gadget. The sharp then requires the user to pay the ransom money.

    Faulty declarations concerning illegal material.

    In countries where software piracy is much less prominent, this technique is not as effective for the cyber frauds. Additionally, the Backdoor:Win32/Besidy.A!bit popup alert may falsely declare to be stemming from a police establishment and also will report having situated child pornography or other illegal data on the tool.

    Backdoor:Win32/Besidy.A!bit popup alert might incorrectly assert to be acquiring from a law enforcement organization and will report having situated kid pornography or various other prohibited data on the gadget. The alert will similarly include a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: 8ED498ED
md5: b193105223242a9cea1d1cc0f41dbf89
name: B193105223242A9CEA1D1CC0F41DBF89.mlw
sha1: d8ecaa0114ec54215510b01f23c61dc1631996d1
sha256: b0813ca008f4e4400a4d9285db9e0e22c23d57cb63e6e3e378818ad3eec737d1
sha512: 1fe420d4e1cbe87b7290a92d701cc0f1bd636ebae1b8a18ba2e1225e2532b77ba0aa5adc1a595c3e5eef066098950675d73cb9515b4e2d42f5634d969a43e655
ssdeep: 24576:ed8It6HCy5nt4M/pL1wAEIqSBanK6CC33VTj+1R8xRFLqqmbD1kWIAqP60wzdH:m8HCy5PL15EIqS1e6q3FmKbtSLzdH
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0409 0x04b0
ProductVersion: 1.00
InternalName: Project1
FileVersion: 1.00
OriginalFilename: Project1.exe
ProductName: Project1

Backdoor:Win32/Besidy.A!bit also known as:

K7AntiVirusP2PWorm ( 0053ea561 )
CynetMalicious (score: 99)
K7GWP2PWorm ( 0053ea561 )
ESET-NOD32a variant of Win32/VB.OME
EmsisoftTrojan.Generic.23096881 (B)
MAXmalware (ai score=100)

How to remove Backdoor:Win32/Besidy.A!bit 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 Backdoor:Win32/Besidy.A!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 Backdoor:Win32/Besidy.A!bit you can always ask me in the comments for getting help.

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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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