Win32/Kryptik.GGKN

Written by Robert Bailey

What is Win32/Kryptik.GGKN infection?

In this article you will locate concerning the meaning of Win32/Kryptik.GGKN as well as its unfavorable influence on your computer. Such ransomware are a type of malware that is clarified by online scams to demand paying the ransom by a target.

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In the majority of the situations, Win32/Kryptik.GGKN infection will advise its targets to launch funds move for the purpose of reducing the effects of the amendments that the Trojan infection has introduced to the victim’s gadget.

Win32/Kryptik.GGKN Summary

These modifications 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.
  • 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.

  • 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 files found on the target’s hard disk drive — so the victim can no longer use the data;
  • 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.

Win32/Kryptik.GGKN

The most common networks whereby Win32/Kryptik.GGKN Ransomware are infused are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a consequence of individual winding up on a resource that hosts a destructive software application;

As quickly as the Trojan is effectively infused, it will certainly either cipher the information on the target’s PC or prevent the tool from functioning in an appropriate way – while additionally positioning a ransom note that states the need for the targets to effect the repayment for the purpose of decrypting the records or recovering the file system back to the first problem. In the majority of instances, the ransom note will certainly turn up when the client restarts the COMPUTER after the system has actually currently been damaged.

Win32/Kryptik.GGKN circulation channels.

In different corners of the globe, Win32/Kryptik.GGKN grows by jumps as well as bounds. Nonetheless, the ransom notes and also techniques of obtaining the ransom money amount may differ relying on particular local (local) setups. The ransom money notes and also tricks of obtaining the ransom money amount may vary depending on particular neighborhood (local) setups.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software application.

    In particular locations, the Trojans frequently wrongfully report having actually identified some unlicensed applications allowed on the target’s device. The alert then demands the user to pay the ransom money.

    Faulty declarations concerning prohibited material.

    In nations where software program piracy is much less preferred, this approach is not as effective for the cyber scams. Conversely, the Win32/Kryptik.GGKN popup alert may incorrectly assert to be stemming from a law enforcement institution as well as will report having situated kid porn or other prohibited information on the tool.

    Win32/Kryptik.GGKN popup alert may falsely assert to be acquiring from a regulation enforcement organization as well as will report having situated child porn or other illegal data on the gadget. The alert will similarly consist of a need for the individual to pay the ransom.

Technical details

File Info:

crc32: C80FE2D2
md5: b3d96a56af3b2c5b8641e5209c61c555
name: B3D96A56AF3B2C5B8641E5209C61C555.mlw
sha1: 88afa6578fabaa911a6eb423b6b52a7fc1dcec59
sha256: 7dcda17e585c1d73cc42124bd4c82299b964adc38d0bdf89d9db32ef0a0e1d91
sha512: e5356eb10f070e29c4f1a5fe68c7e1cc5be3ae2b98e23431e2b7738051073c4539c988cae6494522024619f67bda91a414c39949875c63510f36d47e904306ad
ssdeep: 6144:pupVWcc5b1hwJJL86F0DY3OwwtaVBp5N4:puPW1NwJMYTuiP5N4
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

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

Win32/Kryptik.GGKN also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 005300e41 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.24384
Cynet Malicious (score: 100)
CAT-QuickHeal Trojan.Cloxer.A06
ALYac Trojan.Ransom.GandCrab.Gen.2
Malwarebytes Trojan.MalPack.Generic
Zillya Trojan.Coins.Win32.71
Sangfor Win.Packed.Gandcrab-6552923-4
CrowdStrike win/malicious_confidence_100% (D)
K7GW Trojan ( 005300e41 )
Cybereason malicious.6af3b2
Cyren W32/Ransom.JR.gen!Eldorado
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GGKN
APEX Malicious
Avast FileRepMalware
ClamAV Win.Dropper.Gandcrab-6535271-0
Kaspersky HEUR:Trojan-Ransom.Win32.GandCrypt.gen
BitDefender Trojan.Ransom.GandCrab.Gen.2
NANO-Antivirus Trojan.Win32.Encoder.fbggxs
ViRobot Trojan.Win32.GandCrab.Gen.A
SUPERAntiSpyware Trojan.Agent/Gen-Malagent
MicroWorld-eScan Trojan.Ransom.GandCrab.Gen.2
Tencent Malware.Win32.Gencirc.10b68eed
Ad-Aware Trojan.Ransom.GandCrab.Gen.2
Sophos ML/PE-A + Mal/Agent-AUL
Comodo TrojWare.Win32.Fuerboos.DF@7nopzm
BitDefenderTheta Gen:NN.ZexaF.34628.qu1@ayWb7!ii
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom.Win32.GANDCRAB.SMLA.hp
McAfee-GW-Edition BehavesLike.Win32.Generic.dc
FireEye Generic.mg.b3d96a56af3b2c5b
Emsisoft Trojan.Ransom.GandCrab.Gen.2 (B)
Jiangmin Trojan.PSW.Coins.ct
Avira HEUR/AGEN.1106533
Microsoft Ransom:Win32/GandCrab.AF!bit
AegisLab Trojan.Win32.GandCrypt.j!c
ZoneAlarm HEUR:Trojan-Ransom.Win32.GandCrypt.gen
GData Trojan.Ransom.GandCrab.Gen.2
TACHYON Ransom/W32.GandCrab
AhnLab-V3 Win-Trojan/Gandcrab.Exp
Acronis suspicious
McAfee Trojan-FPQB!B3D96A56AF3B
MAX malware (ai score=100)
VBA32 BScope.TrojanRansom.GandCrypt
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom.Win32.GANDCRAB.SMLA.hp
Rising Trojan.Kryptik!1.B22B (CLOUD)
SentinelOne Static AI – Malicious PE
Fortinet W32/GenKryptik.DQHN!tr
AVG FileRepMalware
Paloalto generic.ml
Qihoo-360 Win32/Ransom.GandCrab.HwoCURkA

How to remove Win32/Kryptik.GGKN 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.GGKN 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.GGKN 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/products/

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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