Win32/GenKryptik.BKFF

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

What is Win32/GenKryptik.BKFF infection?

In this post you will locate concerning the meaning of Win32/GenKryptik.BKFF and also its unfavorable impact on your computer. Such ransomware are a type of malware that is clarified by on the internet scams to demand paying the ransom by a victim.

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In the majority of the cases, Win32/GenKryptik.BKFF infection will certainly advise its targets to launch funds transfer for the objective of counteracting the amendments that the Trojan infection has actually introduced to the victim’s tool.

Win32/GenKryptik.BKFF Summary

These alterations 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.
  • 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.
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • Uses Windows utilities for basic functionality;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • Mimics the file times of a Windows system file;
  • 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
  • Spoofs its process name and/or associated pathname to appear as a legitimate process;
  • 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.
  • Creates known SpyNet mutexes and/or registry changes.;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents situated on the victim’s hard disk drive — so the sufferer can no more utilize the information;
  • Preventing normal accessibility to the victim’s workstation;

Win32/GenKryptik.BKFF

The most common networks whereby Win32/GenKryptik.BKFF Ransomware are injected are:

  • By methods of phishing emails;
  • As an effect of customer winding up on a resource that organizes a malicious software;

As quickly as the Trojan is efficiently infused, it will certainly either cipher the information on the sufferer’s computer or prevent the device from functioning in a correct manner – while likewise putting a ransom note that points out the requirement for the targets to effect the repayment for the objective of decrypting the files or bring back the documents system back to the preliminary condition. In most circumstances, the ransom money note will certainly turn up when the customer restarts the PC after the system has already been harmed.

Win32/GenKryptik.BKFF distribution networks.

In numerous edges of the world, Win32/GenKryptik.BKFF expands by leaps and also bounds. Nonetheless, the ransom notes as well as techniques of extorting the ransom quantity might vary depending on specific neighborhood (regional) settings. The ransom money notes and also tricks of extorting the ransom money quantity might differ depending on particular neighborhood (local) settings.

Ransomware injection

For example:

    Faulty alerts concerning unlicensed software program.

    In specific areas, the Trojans frequently wrongfully report having found some unlicensed applications enabled on the victim’s device. The sharp then requires the user to pay the ransom money.

    Faulty statements about prohibited material.

    In countries where software program piracy is much less popular, this approach is not as effective for the cyber frauds. Conversely, the Win32/GenKryptik.BKFF popup alert may incorrectly claim to be originating from a police institution and also will certainly report having situated child pornography or other unlawful data on the tool.

    Win32/GenKryptik.BKFF popup alert might wrongly declare to be deriving from a law enforcement institution and also will report having located child pornography or various other prohibited information on the gadget. The alert will in a similar way contain a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 0589ACD0
md5: f0ed508e907037819bc01e3bab7f4118
name: F0ED508E907037819BC01E3BAB7F4118.mlw
sha1: e7b58b00be020597be3fd9e30398ed70df50bdb3
sha256: 7b52bc57e4008becf76a6ed462f0cd7448b148ae21c6f240418b435145f1e429
sha512: 719d6f79cf2afba23da55b8d9c1a5624aa953bab68e7ee3dd59c8e8a5442e34c14b9acde5f80e6c034ff3d81cffada8d7455eb46adbc5c86793a255479082699
ssdeep: 6144:KcwZ4rQOdZ99uFlsDhz/Pw+w3aRD+5JBt25K:Kcw5qqF+Dx/PpfVeJBG
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2017
FileVersion: 1.0.0.1
ProductVersion: 1.0.0.1
Translation: 0x0809 0x04b0

Win32/GenKryptik.BKFF also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 00521dff1 )
Elasticmalicious (high confidence)
DrWebBackDoor.Tordev.9
CynetMalicious (score: 100)
CAT-QuickHealTrojan.Chapak.ZZ5
ALYacTrojan.GenericKDZ.41582
CylanceUnsafe
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_60% (D)
AlibabaTrojan:Win32/GenKryptik.1f683e08
K7GWTrojan ( 00521dff1 )
Cybereasonmalicious.e90703
CyrenW32/Kryptik.N.gen!Eldorado
SymantecPacked.Generic.525
ESET-NOD32a variant of Win32/GenKryptik.BKFF
APEXMalicious
AvastFileRepMalware
ClamAVWin.Ransomware.Cryptomix-6489178-0
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderTrojan.GenericKDZ.41582
NANO-AntivirusTrojan.Win32.Inject.ewmuje
SUPERAntiSpywareRansom.Locky/Variant
MicroWorld-eScanTrojan.GenericKDZ.41582
TencentMalware.Win32.Gencirc.114944ee
Ad-AwareTrojan.GenericKDZ.41582
SophosMal/Generic-S
ComodoMalware@#1bupau17cxje
BitDefenderThetaGen:NN.ZexaF.34608.qu0@aODKVUoi
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_HPGANDCRAB.SMG2
McAfee-GW-EditionBehavesLike.Win32.Generic.dh
FireEyeGeneric.mg.f0ed508e90703781
EmsisoftTrojan.GenericKDZ.41582 (B)
SentinelOneStatic AI – Malicious PE
AviraHEUR/AGEN.1106533
MicrosoftTrojan:Win32/Tiggre!rfn
ArcabitTrojan.Generic.DA26E
AegisLabTrojan.Win32.Generic.4!c
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataTrojan.GenericKDZ.41582
AhnLab-V3Trojan/Win32.Crypt.R216696
Acronissuspicious
McAfeeGenericRXDP-NO!F0ED508E9070
MAXmalware (ai score=99)
VBA32BScope.Backdoor.Tordev
MalwarebytesRansom.GlobeImposter
PandaTrj/Genetic.gen
TrendMicro-HouseCallRansom_HPGANDCRAB.SMG2
RisingRansom.Crypmod!8.DA9 (CLOUD)
IkarusTrojan.Win32.Midrami
MaxSecureRansomeware.CRAB.gen
FortinetW32/Kryptik.FZML!tr
AVGFileRepMalware
Paloaltogeneric.ml
Qihoo-360Win32/Trojan.Generic.HwoChJwA

How to remove Win32/GenKryptik.BKFF 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 Win32/GenKryptik.BKFF 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/GenKryptik.BKFF 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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