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

What is Win32/Kryptik.GVFD infection?

In this short article you will certainly find about the interpretation of Win32/Kryptik.GVFD as well as its negative influence on your computer. Such ransomware are a form of malware that is specified by on the internet fraudulences to demand paying the ransom by a sufferer.

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In the majority of the situations, Win32/Kryptik.GVFD ransomware will advise its targets to initiate funds transfer for the function of counteracting the changes that the Trojan infection has presented to the target’s tool.

Win32/Kryptik.GVFD 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.
  • 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.
  • Unconventionial language used in binary resources: Belarusian;
  • 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!
  • Steals private information from local Internet browsers;
  • Attempts to access Bitcoin/ALTCoin wallets;
  • Harvests credentials from local FTP client softwares;
  • Harvests information related to installed instant messenger clients;
  • Harvests information related to installed mail clients;
  • Ciphering the papers found on the target’s disk drive — so the victim can no more use the information;
  • Preventing normal 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.
Similar behavior
Related domains Ransom.Stop.MP4


One of the most common channels where Win32/Kryptik.GVFD Ransomware Trojans are injected are:

  • By ways of phishing e-mails;
  • As an effect of individual winding up on a source that hosts a malicious software program;

As quickly as the Trojan is efficiently injected, it will either cipher the information on the victim’s computer or avoid the device from operating in an appropriate fashion – while additionally placing a ransom note that states the requirement for the targets to effect the settlement for the function of decrypting the files or recovering the documents system back to the first condition. In the majority of circumstances, the ransom money note will certainly show up when the client restarts the COMPUTER after the system has actually currently been damaged.

Win32/Kryptik.GVFD distribution channels.

In various corners of the world, Win32/Kryptik.GVFD expands by leaps and bounds. Nevertheless, the ransom notes as well as techniques of extorting the ransom money amount may differ depending on particular regional (regional) settings. The ransom notes as well as methods of obtaining the ransom quantity may differ depending on particular regional (local) settings.

Ransomware injection

As an example:

    Faulty notifies concerning unlicensed software application.

    In specific locations, the Trojans typically wrongfully report having discovered some unlicensed applications enabled on the sufferer’s gadget. The alert then requires the customer to pay the ransom.

    Faulty declarations regarding prohibited material.

    In countries where software program piracy is less preferred, this method is not as reliable for the cyber frauds. Alternatively, the Win32/Kryptik.GVFD popup alert may falsely assert to be stemming from a law enforcement organization and also will certainly report having situated kid porn or various other prohibited information on the device.

    Win32/Kryptik.GVFD popup alert may incorrectly declare to be deriving from a regulation enforcement institution and also will report having situated child porn or various other unlawful data on the device. The alert will likewise contain a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: 84FDE522
md5: 11800892ea31be47eaf6de01f73e992c
name: upload_file
sha1: ad8963bf393bd2adeacac7e4802a1f6e9f742bfa
sha256: 56b80e17b37e729d37f4019ba8bab91fd812616eac95ec03e2c12566d2313e3b
sha512: 2d4a821844bcffdb6d1c51eb13eb27868df57c3755853a10d4682a708fc3dac7ca46bdaba0098565f32aaaaa410a90e17a428d73eb23be93a09eecb9eaa2b52e
ssdeep: 6144:4MFHSiGu5DpLHC38LU0DdniaoZzEKEdHujFSMNqLydNj4S8hvrGuSGGu7VWiQ1d:ZnRhNdxFuj7ZQDhvnZVWT1dvfR5
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2019, mhchfkh
InternalName: ytereth.exe
ProductVersion: 1.9.1
Translation: 0x0847 0x03fc

Win32/Kryptik.GVFD also known as:

GridinSoft Trojan.Ransom.Gen
Bkav HW32.Packed.
MicroWorld-eScan Trojan.GenericKD.32213360
CAT-QuickHeal Ransom.Stop.MP4
McAfee Artemis!11800892EA31
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Malware
CrowdStrike win/malicious_confidence_60% (W)
BitDefender Trojan.GenericKD.32213360
K7GW Trojan ( 00554d101 )
K7AntiVirus Trojan ( 00554d101 )
TrendMicro Trojan.Win32.SODINOK.SM.hp
Symantec Packed.Generic.525
APEX Malicious
Avast Win32:Malware-gen
GData Trojan.GenericKD.32213360
Kaspersky HEUR:Trojan.Win32.Generic
Alibaba TrojanPSW:Win32/Predator.051397c4
NANO-Antivirus Trojan.Win32.Predator.fvbfpd
AegisLab Trojan.Win32.Predator.i!c
Tencent Win32.Trojan.Generic.Dwjg
Endgame malicious (high confidence)
Emsisoft Trojan.GenericKD.32213360 (B)
Comodo Malware@#2ptqnf9w9q03t
F-Secure Heuristic.HEUR/AGEN.1107506
DrWeb Trojan.PWS.Siggen2.25909
Zillya Trojan.Kryptik.Win32.1874412
Invincea heuristic
Sophos Mal/GandCrab-H
Ikarus Trojan.Krypt
Jiangmin Trojan.Generic.elhyn
Avira HEUR/AGEN.1107506
MAX malware (ai score=100)
Arcabit Trojan.Generic.D1EB8970
ZoneAlarm HEUR:Trojan.Win32.Generic
Microsoft Trojan:Win32/Skeeyah.B!rfn
Cynet Malicious (score: 100)
AhnLab-V3 Win-Trojan/MalPe31.Suspicious.X2022
Acronis suspicious
VBA32 BScope.Trojan.Downloader
ALYac Trojan.GenericKD.32213360
Ad-Aware Trojan.GenericKD.32213360
Malwarebytes Trojan.MalPack.GS
Panda Trj/GdSda.A
ESET-NOD32 a variant of Win32/Kryptik.GVFD
TrendMicro-HouseCall Trojan.Win32.SODINOK.SM.hp
Rising Trojan.Wacatac!8.10C01 (CLOUD)
eGambit Unsafe.AI_Score_91%
Fortinet W32/Kryptik.GWIV!tr
BitDefenderTheta Gen:NN.ZexaF.34130.Dy0@aqnGTEgG
AVG Win32:Malware-gen
Qihoo-360 HEUR/QVM10.2.F18B.Malware.Gen

How to remove Win32/Kryptik.GVFD ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

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/Kryptik.GVFD 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/Kryptik.GVFD you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site:
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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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