Win32/Kryptik.FVNG

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

What is Win32/Kryptik.FVNG infection?

In this article you will certainly discover about the interpretation of Win32/Kryptik.FVNG as well as its unfavorable influence on your computer system. Such ransomware are a form of malware that is specified by on the internet frauds to require paying the ransom money by a target.

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In the majority of the situations, Win32/Kryptik.FVNG ransomware will certainly advise its targets to start funds transfer for the objective of neutralizing the amendments that the Trojan infection has presented to the victim’s device.

Win32/Kryptik.FVNG Summary

These alterations can be as follows:

  • 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.
  • A process created a hidden window;
  • Unconventionial binary language: Chinese (Simplified);
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • Uses Windows utilities for basic functionality;
  • 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
  • Attempts to identify installed AV products by registry key;
  • Ciphering the documents situated on the victim’s hard disk — so the target can no longer use the data;
  • Preventing normal access to the sufferer’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/Kryptik.FVNG

One of the most normal networks through which Win32/Kryptik.FVNG Ransomware are infused are:

  • By methods of phishing emails;
  • As a repercussion of user winding up on a resource that organizes a harmful software;

As quickly as the Trojan is effectively injected, it will either cipher the information on the victim’s PC or prevent the gadget from working in a correct manner – while likewise placing a ransom note that mentions the demand for the victims to impact the repayment for the objective of decrypting the documents or recovering the documents system back to the first condition. In many circumstances, the ransom money note will turn up when the customer restarts the PC after the system has actually currently been harmed.

Win32/Kryptik.FVNG circulation networks.

In various corners of the world, Win32/Kryptik.FVNG expands by leaps as well as bounds. Nevertheless, the ransom money notes as well as techniques of obtaining the ransom amount may differ relying on certain local (regional) setups. The ransom money notes and tricks of obtaining the ransom amount may vary depending on certain local (local) settings.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software.

    In particular areas, the Trojans frequently wrongfully report having found some unlicensed applications allowed on the sufferer’s device. The alert after that demands the user to pay the ransom.

    Faulty statements about illegal web content.

    In countries where software program piracy is less prominent, this method is not as effective for the cyber frauds. Additionally, the Win32/Kryptik.FVNG popup alert may falsely assert to be originating from a law enforcement institution and also will certainly report having located kid pornography or other unlawful data on the tool.

    Win32/Kryptik.FVNG popup alert may wrongly claim to be deriving from a legislation enforcement institution and also will certainly report having located child porn or other unlawful information on the tool. The alert will likewise contain a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: 4048D1EF
md5: 67750f02ae1453e53ea743e83c808c5c
name: 67750F02AE1453E53EA743E83C808C5C.mlw
sha1: 0a34d82712e1f370931f177d8b12f1aa7237380a
sha256: 05b8cb5e2ec959f6bc32a1e1d9be02ad0a72ae5c54671a5bcba2bc9bbf09ab96
sha512: ba3d59058add26d0e91fa4e13e8f4f1b3cc285394411739414f28141a4f3261625ec501c0c222a3bc4fb763d262f66c0cbe717624d39790dd9b7fa03cd9dec55
ssdeep: 6144:8+PAbsEGF9t4SOzcOZnV9H5csADCPaJGNA2LQL0fz53QkI+svUw4+P:8SAbst2zcOpysADPGy2LQL0r5TsHP
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2005-2015
InternalName:
FileVersion: 1.0.0.52
CompanyName: IObit
LegalTrademarks: IObit
Comments:
ProductName: Advanced SystemCare8
ProductVersion: 1.0.0.0
FileDescription: Startup Manager Delay Load
OriginalFilename: delayload.exe
Translation: 0x0804 0x03a8

Win32/Kryptik.FVNG also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware2
Elasticmalicious (high confidence)
DrWebTrojan.Siggen7.26949
CynetMalicious (score: 100)
CAT-QuickHealTrojan.Generic
ALYacTrojan.Ransom.Cerber.ZI
CylanceUnsafe
ZillyaTrojan.Yakes.Win32.65436
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
AlibabaTrojan:Win32/Bunitu.ali1000105
K7GWTrojan ( 005146b81 )
K7AntiVirusTrojan ( 005146b81 )
CyrenW32/Yakes.BD.gen!Eldorado
SymantecPacked.Generic.459
ESET-NOD32a variant of Win32/Kryptik.FVNG
APEXMalicious
AvastWin32:TrojanX-gen [Trj]
ClamAVWin.Ransomware.Cerber-7082319-1
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderTrojan.Ransom.Cerber.ZI
NANO-AntivirusTrojan.Win32.Yakes.esbxkh
MicroWorld-eScanTrojan.Ransom.Cerber.ZI
TencentMalware.Win32.Gencirc.10b2b6f2
Ad-AwareTrojan.Ransom.Cerber.ZI
SophosMal/Generic-S + Mal/Cerber-AL
ComodoTrojWare.Win32.Yakes.FTU@778lll
F-SecureHeuristic.HEUR/AGEN.1129194
BitDefenderThetaGen:NN.ZexaF.34608.Lq0@aSjhZZob
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_HPCERBER.SMALY5B
McAfee-GW-EditionBehavesLike.Win32.Emotet.jt
FireEyeGeneric.mg.67750f02ae1453e5
EmsisoftTrojan.Ransom.Cerber.ZI (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Generic.eakki
AviraHEUR/AGEN.1129194
eGambitUnsafe.AI_Score_80%
Antiy-AVLTrojan/Win32.TSGeneric
MicrosoftTrojanProxy:Win32/Bunitu.Q!bit
ArcabitTrojan.Ransom.Cerber.ZI
AegisLabHacktool.Win32.Krap.lKMc
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataWin32.Trojan-Ransom.Locky.DV
AhnLab-V3Win-Trojan/Lukitus2.Exp
Acronissuspicious
McAfeeRansomware-GCQ!67750F02AE14
MAXmalware (ai score=100)
VBA32BScope.Trojan.Encoder
MalwarebytesQbot.Backdoor.Stealer.DDS
PandaTrj/GdSda.A
TrendMicro-HouseCallRansom_HPCERBER.SMALY5B
RisingTrojan.Kryptik!1.AD43 (CLOUD)
YandexTrojan.GenAsa!mWt8P5K8z2k
IkarusTrojan-Proxy.Agent
FortinetW32/GenKryptik.ESWN!tr
AVGWin32:TrojanX-gen [Trj]
Paloaltogeneric.ml
Qihoo-360Win32/Trojan.9e9

How to remove Win32/Kryptik.FVNG 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

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/Kryptik.FVNG 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.FVNG 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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