Win32/Kryptik.GVGK

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

What is Win32/Kryptik.GVGK infection?

In this short article you will find regarding the interpretation of Win32/Kryptik.GVGK and its negative effect on your computer system. Such ransomware are a kind of malware that is clarified by on the internet fraudulences to require paying the ransom money by a victim.

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Most of the cases, Win32/Kryptik.GVGK virus will certainly instruct its sufferers to start funds transfer for the objective of neutralizing the modifications that the Trojan infection has actually introduced to the target’s tool.

Win32/Kryptik.GVGK 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.
  • Unconventionial language used in binary resources: Farsi;
  • 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 modify proxy settings. This trick used for inject malware into connection between browser and server;
  • 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;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers situated on the sufferer’s hard disk — so the target can no more make use of the information;
  • Preventing routine 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.
Similar behavior
Related domains
z.whorecord.xyzRansom.Stop.MP4
a.tomx.xyzRansom.Stop.MP4
stratbuks.comRansom.Stop.MP4

Win32/Kryptik.GVGK

The most normal channels whereby Win32/Kryptik.GVGK Ransomware are injected are:

  • By means of phishing e-mails;
  • As a repercussion of customer ending up on a resource that organizes a destructive software program;

As soon as the Trojan is efficiently injected, it will certainly either cipher the data on the sufferer’s computer or prevent the device from operating in a proper fashion – while additionally positioning a ransom money note that points out the need for the sufferers to impact the settlement for the objective of decrypting the documents or recovering the file system back to the first problem. In a lot of instances, the ransom money note will come up when the customer reboots the COMPUTER after the system has actually currently been harmed.

Win32/Kryptik.GVGK distribution networks.

In various corners of the globe, Win32/Kryptik.GVGK grows by jumps and also bounds. Nonetheless, the ransom money notes and also methods of extorting the ransom amount might vary relying on particular local (local) setups. The ransom money notes and also tricks of extorting the ransom quantity might differ depending on certain regional (regional) settings.

Ransomware injection

As an example:

    Faulty signals regarding unlicensed software program.

    In particular locations, the Trojans typically wrongfully report having detected some unlicensed applications enabled on the victim’s device. The alert then requires the individual to pay the ransom money.

    Faulty statements regarding unlawful content.

    In nations where software piracy is much less preferred, this approach is not as efficient for the cyber frauds. Additionally, the Win32/Kryptik.GVGK popup alert may incorrectly claim to be originating from a law enforcement institution and also will report having situated youngster pornography or various other prohibited data on the gadget.

    Win32/Kryptik.GVGK popup alert may falsely declare to be obtaining from a law enforcement establishment and will certainly report having located child pornography or various other unlawful information on the device. The alert will similarly include a need for the user to pay the ransom money.

Technical details

File Info:

crc32: FD780FE9
md5: 415cc7ecd231771bda66741b424484bc
name: readme.exe
sha1: 5330ee0641d1802114f158641ab10e6e7d35bd07
sha256: 50f8789e5de73c51e9ce28fbd2b461ebeed04bf8acdd2c478a82580884094fec
sha512: 8775bfb1aa3b1a53b417662938c3346670d64dfc35eebf48281964f4bb17a0493dba9527b3a7e7e8c40e552d2a3594eef2bc756786257340475e096e354123b7
ssdeep: 12288:E8ULgPAcnO+WT1W8QMxoxirlJQRZQqGu3:EyAmO+W8MxGiwvQqGu3
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0847 0x03fc

Win32/Kryptik.GVGK also known as:

GridinSoftTrojan.Ransom.Gen
MicroWorld-eScanTrojan.GenericKD.41539292
CAT-QuickHealRansom.Stop.MP4
McAfeeTrojan-FRJR!415CC7ECD231
VIPRETrojan.Win32.Generic!BT
SangforMalware
CrowdStrikewin/malicious_confidence_60% (W)
BitDefenderTrojan.GenericKD.41539292
K7GWTrojan ( 005551251 )
K7AntiVirusTrojan ( 005551251 )
ArcabitTrojan.Generic.D279D6DC
TrendMicroTROJ_GEN.R002C0PH819
SymantecPacked.Generic.525
ESET-NOD32a variant of Win32/Kryptik.GVGK
APEXMalicious
Paloaltogeneric.ml
KasperskyTrojan-Spy.Win32.Stealer.nzd
AlibabaTrojanSpy:Win32/Stealer.70ab287e
NANO-AntivirusTrojan.Win32.Stealer.fvdlav
ViRobotTrojan.Win32.Z.Stealer.465408
RisingMalware.Obscure/Heur!1.9E03 (CLASSIC)
Ad-AwareTrojan.GenericKD.41539292
EmsisoftTrojan.GenericKD.41539292 (B)
ComodoMalware@#1u2jx6hr28z8h
F-SecureHeuristic.HEUR/AGEN.1043783
DrWebTrojan.Encoder.28004
ZillyaTrojan.Kryptik.Win32.1869778
Invinceaheuristic
McAfee-GW-EditionBehavesLike.Win32.AdwareInstCap.gh
FortinetW32/Kryptik.GVOI!tr
Trapminesuspicious.low.ml.score
FireEyeGeneric.mg.415cc7ecd231771b
SophosMal/GandCrab-H
IkarusTrojan-Spy.Agent
JiangminExploit.Nekto.au
AviraHEUR/AGEN.1043783
MAXmalware (ai score=100)
Endgamemalicious (high confidence)
MicrosoftTrojan:Win32/Windigo.DSK!MTB
ZoneAlarmTrojan-Spy.Win32.Stealer.nzd
AhnLab-V3Win-Trojan/MalPe30.Suspicious.X2019
Acronissuspicious
VBA32BScope.Trojan.Downloader
ALYacTrojan.GenericKD.41539292
MalwarebytesTrojan.MalPack.GS
PandaTrj/GdSda.A
TrendMicro-HouseCallTrojan.Win32.SODINOK.SM.hp
SentinelOneDFI – Suspicious PE
eGambitUnsafe.AI_Score_99%
GDataTrojan.GenericKD.41539292
BitDefenderThetaGen:NN.ZexaF.33558.CyW@aK8@XTaG
AVGWin32:Malware-gen
Cybereasonmalicious.641d18
AvastWin32:Malware-gen
Qihoo-360Win32/Trojan.Spy.651

How to remove Win32/Kryptik.GVGK 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 install-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.GVGK 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.GVGK 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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