Win32/Filecoder.BM

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

What is Win32/Filecoder.BM infection?

In this post you will certainly discover concerning the meaning of Win32/Filecoder.BM as well as its adverse influence on your computer. Such ransomware are a kind of malware that is elaborated by on the internet scams to demand paying the ransom by a target.

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In the majority of the cases, Win32/Filecoder.BM ransomware will instruct its sufferers to initiate funds transfer for the function of neutralizing the amendments that the Trojan infection has presented to the target’s tool.

Win32/Filecoder.BM Summary

These modifications can be as adheres to:

  • 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;
  • 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;
  • Uses Windows utilities for basic functionality;
  • Detects VirtualBox through the presence of a registry key;
  • Ciphering the documents located on the target’s disk drive — so the target can no longer use 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.

Win32/Filecoder.BM

The most regular channels where Win32/Filecoder.BM are infused are:

  • By methods of phishing emails;
  • As a consequence of individual ending up on a resource that hosts a destructive software;

As soon as the Trojan is efficiently injected, it will either cipher the information on the sufferer’s PC or stop the gadget from working in a proper way – while also putting a ransom note that points out the demand for the sufferers to effect the settlement for the objective of decrypting the papers or restoring the data system back to the preliminary problem. In most instances, the ransom money note will show up when the customer reboots the PC after the system has actually already been harmed.

Win32/Filecoder.BM circulation channels.

In different corners of the world, Win32/Filecoder.BM expands by leaps and bounds. However, the ransom notes as well as tricks of extorting the ransom money quantity may differ relying on particular regional (local) settings. The ransom money notes as well as tricks of extorting the ransom money quantity may vary depending on specific regional (local) setups.

Ransomware injection

For instance:

    Faulty signals concerning unlicensed software.

    In certain areas, the Trojans commonly wrongfully report having actually identified some unlicensed applications enabled on the sufferer’s tool. The alert after that requires the user to pay the ransom money.

    Faulty statements regarding illegal content.

    In nations where software program piracy is much less preferred, this technique is not as effective for the cyber scams. Alternatively, the Win32/Filecoder.BM popup alert may incorrectly declare to be originating from a police organization as well as will report having located youngster porn or various other prohibited data on the tool.

    Win32/Filecoder.BM popup alert might incorrectly assert to be acquiring from a regulation enforcement organization and also will certainly report having located youngster porn or other unlawful information on the tool. The alert will in a similar way contain a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 55F909CA
md5: d6078642f45491ab9a428f5686c99839
name: D6078642F45491AB9A428F5686C99839.mlw
sha1: 3b84bd07e1c5c46240c59a35a7169b273e0202e4
sha256: 8786c80bc06e93ff1c2cb2cec3db3ddfae4d445664fbf65bbb0f7d5868f3c862
sha512: c0a61e69776ae9bec606456e1ea92b49096d8003c41e14431106ffb683bf32a41b672e63b0f8ad02f1cd285e94db9a2e978548427584055278c02f1fbe337bb7
ssdeep: 12288:lxwhszQV8CZl+L8dAxn7Z9J0ZH3i3/yZFnibsRJkzIUo:4K0r+wdAt1UHS3yFnien
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Win32/Filecoder.BM also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware2
K7AntiVirusTrojan ( 0055e3ef1 )
DrWebTrojan.Encoder.263
CynetMalicious (score: 85)
ALYacGen:Variant.Barys.77380
CylanceUnsafe
CrowdStrikewin/malicious_confidence_60% (W)
AlibabaRansom:Win32/Rakhni.dc18a700
K7GWTrojan ( 0055e3ef1 )
Cybereasonmalicious.2f4549
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Filecoder.BM
APEXMalicious
TotalDefenseWin32/Tnega.XAYT!suspicious
AvastFileRepMalware
KasperskyTrojan-Ransom.Win32.Rakhni.hv
BitDefenderGen:Variant.Barys.77380
NANO-AntivirusTrojan.Win32.Encoder.doolbr
MicroWorld-eScanGen:Variant.Barys.77380
TencentWin32.Trojan.Falsesign.Wopj
Ad-AwareGen:Variant.Barys.77380
SophosTroj/Ransom-AFB
ComodoMalware@#s8460dzxe8bo
BitDefenderThetaGen:NN.ZelphiF.34608.ImHfa8pG@Nfi
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_Purubutu.R002C0DA121
McAfee-GW-EditionGenericRXKU-AR!C01C5178C22D
FireEyeGeneric.mg.d6078642f45491ab
EmsisoftGen:Variant.Barys.77380 (B)
SentinelOneStatic AI – Suspicious PE
AviraTR/ATRAPS.Gen
KingsoftWin32.Troj.Generic_a.a.(kcloud)
MicrosoftPUA:Win32/Creprote
ArcabitTrojan.Barys.D12E44
AegisLabTrojan.Win32.Rakhni.j!c
GDataGen:Variant.Barys.77380
AhnLab-V3Trojan/Win32.CryFile.C416073
McAfeeArtemis!D6078642F454
MAXmalware (ai score=85)
VBA32Hoax.CryFile
MalwarebytesMalware.Heuristic.1003
PandaTrj/Genetic.gen
TrendMicro-HouseCallRansom_Purubutu.R002C0DA121
RisingRansom.Purubutu!8.115F (CLOUD)
IkarusTrojan-Ransom.Rakhni
FortinetW32/Rakhni.AFB!tr
AVGFileRepMalware
Paloaltogeneric.ml
Qihoo-360Win32/Ransom.Rakhni.HwsBpycA

How to remove Win32/Filecoder.BM ransomware?

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 Win32/Filecoder.BM 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/Filecoder.BM 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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