Win32/Kryptik.GGFK

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

What is Win32/Kryptik.GGFK infection?

In this short article you will find about the definition of Win32/Kryptik.GGFK and its adverse effect on your computer system. Such ransomware are a type of malware that is clarified by on the internet fraudulences to demand paying the ransom money by a target.

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Most of the cases, Win32/Kryptik.GGFK ransomware will instruct its sufferers to start funds move for the objective of neutralizing the changes that the Trojan infection has introduced to the victim’s tool.

Win32/Kryptik.GGFK Summary

These alterations can be as adheres to:

  • 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 attempted to delay the analysis task.;
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • Performs some HTTP requests;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • 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!
  • 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
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Creates a slightly modified copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents located on the target’s disk drive — so the target can no longer use the information;
  • Preventing regular accessibility to the target’s workstation;
Similar behavior
Related domains
ipv4bot.whatismyipaddress.comTrojan.Ransom.GandCrab.Gen.2
ns1.wowservers.ruTrojan.Ransom.GandCrab.Gen.2
carder.bitTrojan.Ransom.GandCrab.Gen.2
ns2.wowservers.ruTrojan.Ransom.GandCrab.Gen.2
ransomware.bitTrojan.Ransom.GandCrab.Gen.2

Win32/Kryptik.GGFK

One of the most regular networks where Win32/Kryptik.GGFK Ransomware Trojans are infused are:

  • By means of phishing emails;
  • As a repercussion of customer ending up on a resource that holds a harmful software program;

As soon as the Trojan is effectively infused, it will either cipher the data on the sufferer’s computer or avoid the gadget from operating in a correct fashion – while likewise putting a ransom money note that states the need for the victims to effect the repayment for the purpose of decrypting the records or bring back the data system back to the first condition. In most instances, the ransom note will certainly show up when the client restarts the PC after the system has currently been harmed.

Win32/Kryptik.GGFK distribution channels.

In various edges of the world, Win32/Kryptik.GGFK grows by leaps and also bounds. Nevertheless, the ransom money notes and also techniques of obtaining the ransom amount may differ depending on certain neighborhood (regional) settings. The ransom money notes and also methods of obtaining the ransom quantity may vary depending on certain local (local) setups.

Ransomware injection

As an example:

    Faulty signals regarding unlicensed software application.

    In specific locations, the Trojans usually wrongfully report having actually detected some unlicensed applications enabled on the sufferer’s tool. The sharp after that demands the user to pay the ransom money.

    Faulty statements regarding unlawful web content.

    In countries where software program piracy is much less prominent, this approach is not as reliable for the cyber fraudulences. Additionally, the Win32/Kryptik.GGFK popup alert might wrongly declare to be deriving from a police establishment as well as will certainly report having situated child porn or various other unlawful data on the tool.

    Win32/Kryptik.GGFK popup alert may wrongly claim to be deriving from a law enforcement establishment as well as will certainly report having located child pornography or other illegal information on the tool. The alert will likewise contain a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: 536BA26B
md5: 6e4cdfe2365a65c4bc29a9f3a5ee26e1
name: 6E4CDFE2365A65C4BC29A9F3A5EE26E1.mlw
sha1: 253012849f28c9630df36e9afcdfef3479386cbe
sha256: 3a3327c55ea25189de77fac2873ecd5f467ba3e3f64476103dc60ea628d41036
sha512: 6ef7b051a6a5b588555bd7f23fbb016c477f97142b56239cf8c280d6f76133f06c245d8f665113d3db666a998e5278ae53efe304204d959a2e3cde605b663bbd
ssdeep: 3072:di34zy5EGCD+gHFqq5iOS8Znw508gw9gS24JAslRF6WXTJDD11a11A11A11e11wR:di34LG8HFqsw8Zwm8gygSxA+pT7S
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2017, igfpabcew
InternalName: toalatspring.exe
FileVersion: 5.1
ProductVersion: 5.1.111.0
Translation: 0x0789 0x04b1

Win32/Kryptik.GGFK also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.24384
MicroWorld-eScanTrojan.Ransom.GandCrab.Gen.2
FireEyeGeneric.mg.6e4cdfe2365a65c4
CAT-QuickHealTrojan.Cloxer.A06
ALYacTrojan.Ransom.GandCrab.Gen.2
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
AegisLabTrojan.Win32.Generic.4!c
SangforWin.Packed.Gandcrab-6520432-4
K7AntiVirusTrojan ( 003e58dd1 )
BitDefenderTrojan.Ransom.GandCrab.Gen.2
K7GWTrojan ( 0056ea8e1 )
Cybereasonmalicious.2365a6
BitDefenderThetaGen:NN.ZexaF.34590.pu1@aa!KLtpi
CyrenW32/S-9659e02a!Eldorado
SymantecPacked.Generic.525
TrendMicro-HouseCallRansom_GANDCRAB.SMALY-5
AvastWin32:Malware-gen
ClamAVWin.Dropper.Gandcrab-6535271-0
KasperskyHEUR:Trojan.Win32.Generic
AlibabaRansom:Win32/Gandcrab.b9f1a66c
NANO-AntivirusTrojan.Win32.Mokes.fawxir
ViRobotTrojan.Win32.GandCrab.Gen.A
RisingTrojan.Kryptik!8.8 (CLOUD)
Ad-AwareTrojan.Ransom.GandCrab.Gen.2
EmsisoftTrojan.Ransom.GandCrab.Gen.2 (B)
ComodoTrojWare.Win32.Magniber.GH@7mr2pk
F-SecureHeuristic.HEUR/AGEN.1102756
ZillyaExploit.CVE.Win32.2127
TrendMicroRansom_GANDCRAB.SMALY-5
McAfee-GW-EditionBehavesLike.Win32.Generic.dh
SophosML/PE-A + Mal/Agent-AUL
IkarusTrojan.Kryptik
JiangminTrojanDownloader.Upatre.ajdp
AviraHEUR/AGEN.1102756
MAXmalware (ai score=100)
Antiy-AVLTrojan/Win32.TSGeneric
MicrosoftRansom:Win32/Gandcrab.SF!MTB
ArcabitTrojan.Ransom.GandCrab.Gen.2
SUPERAntiSpywareTrojan.Agent/Gen-Malagent
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataTrojan.Ransom.GandCrab.Gen.2
CynetMalicious (score: 100)
AhnLab-V3Win-Trojan/Gandcrab.Exp
Acronissuspicious
McAfeeTrojan-FPOH!6E4CDFE2365A
TACHYONRansom/W32.GandCrab
VBA32BScope.Backdoor.Mokes
MalwarebytesTrojan.MalPack.Generic
APEXMalicious
ESET-NOD32a variant of Win32/Kryptik.GGFK
TencentMalware.Win32.Gencirc.10b81df2
YandexTrojan.GenAsa!zGLXM6GZGQI
SentinelOneStatic AI – Malicious PE
MaxSecureRansomeware.CRAB.gen
FortinetW32/GenKryptik.DQHN!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_100% (D)
Qihoo-360Win32/Ransom.GandCrab.HwoCuCMA

How to remove Win32/Kryptik.GGFK virus?

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.GGFK 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Win32/Kryptik.GGFK 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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