Win32/Kryptik.GHOG

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

What is Win32/Kryptik.GHOG infection?

In this article you will find regarding the meaning of Win32/Kryptik.GHOG as well as its adverse influence on your computer. Such ransomware are a kind of malware that is specified by on-line scams to require paying the ransom by a victim.

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Most of the situations, Win32/Kryptik.GHOG infection will advise its targets to launch funds transfer for the purpose of reducing the effects of the amendments that the Trojan infection has introduced to the target’s tool.

Win32/Kryptik.GHOG 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 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.

  • 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;
  • 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 papers located on the target’s hard disk drive — so the victim can no more make use of the data;
  • Preventing routine access 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.

Win32/Kryptik.GHOG

The most typical channels where Win32/Kryptik.GHOG Trojans are infused are:

  • By methods of phishing emails;
  • As a repercussion of customer winding up on a source that hosts a malicious software application;

As quickly as the Trojan is successfully infused, it will certainly either cipher the data on the target’s computer or stop the tool from functioning in a proper fashion – while additionally putting a ransom note that points out the requirement for the targets to impact the repayment for the objective of decrypting the documents or restoring the data system back to the initial problem. In a lot of instances, the ransom note will certainly come up when the customer restarts the COMPUTER after the system has actually already been harmed.

Win32/Kryptik.GHOG distribution networks.

In different corners of the world, Win32/Kryptik.GHOG grows by jumps as well as bounds. Nonetheless, the ransom notes as well as methods of extorting the ransom money amount may vary relying on particular local (regional) settings. The ransom money notes as well as methods of obtaining the ransom quantity may differ depending on particular neighborhood (local) setups.

Ransomware injection

As an example:

    Faulty signals regarding unlicensed software program.

    In certain locations, the Trojans commonly wrongfully report having actually detected some unlicensed applications enabled on the target’s gadget. The alert then requires the customer to pay the ransom.

    Faulty statements about prohibited content.

    In countries where software piracy is much less prominent, this technique is not as efficient for the cyber scams. Alternatively, the Win32/Kryptik.GHOG popup alert might wrongly assert to be originating from a law enforcement institution as well as will report having situated kid porn or other prohibited information on the tool.

    Win32/Kryptik.GHOG popup alert might falsely claim to be acquiring from a regulation enforcement institution and also will certainly report having located youngster pornography or various other illegal information on the gadget. The alert will in a similar way have a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: FBFBFDF9
md5: 62c0f0c2d2b6115947e9a8b055a55ea7
name: 62C0F0C2D2B6115947E9A8B055A55EA7.mlw
sha1: 638f7eb90df9ca45eed8a41d0412ff34876687c7
sha256: 7c9a5758cb8b699671803ff821c66d81b51bc8be4f5f2f8735e6d48adc79ab9e
sha512: 1a2aef2db237eef4e627e3193582be680f2056d8f75414a426fad5b2b7c3dcb3a5eadb55b04b3830649ba8626b7b75c3cfc3b8b8e8445f6aca89d610de85fe1e
ssdeep: 6144:0aSO/FVgabU2Y3irpU9J+RadG7ifhT60tq4p08GbNfGfOZU6J51k005vg0U0bCxK:0aj/F7bl3fxR2gnSchx/VjZ4CFW/X
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0809 0x04b0

Win32/Kryptik.GHOG also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 00560d5e1 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.24384
Cynet Malicious (score: 100)
CAT-QuickHeal Trojan.Mauvaise.SL1
ALYac Trojan.Ransom.GandCrab.Gen.2
Malwarebytes Ransom.GandCrab
Zillya Trojan.GandCrypt.Win32.334
Sangfor Win.Packed.Gandcrab-6552923-4
CrowdStrike win/malicious_confidence_100% (D)
K7GW Trojan ( 00560d5e1 )
Cybereason malicious.2d2b61
Cyren W32/S-468a6143!Eldorado
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GHOG
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Packed.Gandcrab-6552923-4
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Ransom.GandCrab.Gen.2
NANO-Antivirus Trojan.Win32.GandCrypt.fdtgyk
ViRobot Trojan.Win32.GandCrab.Gen.A
SUPERAntiSpyware Ransom.GandCrab/Variant
MicroWorld-eScan Trojan.Ransom.GandCrab.Gen.2
Tencent Malware.Win32.Gencirc.10b6dfc6
Ad-Aware Trojan.Ransom.GandCrab.Gen.2
Sophos Mal/Generic-R + Mal/Agent-AUL
Comodo TrojWare.Win32.Gandcrab.AK@7os0ny
BitDefenderTheta Gen:NN.ZexaF.34608.uyX@aCpuCIe
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Generic.fc
FireEye Generic.mg.62c0f0c2d2b61159
Emsisoft Trojan.Ransom.GandCrab.Gen.2 (B)
Avira HEUR/AGEN.1103299
eGambit Unsafe.AI_Score_99%
AegisLab Trojan.Win32.GandCrypt.j!c
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Ransom.GandCrab.Gen.2
TACHYON Ransom/W32.GandCrab
AhnLab-V3 Win-Trojan/Gandcrab.Exp
Acronis suspicious
McAfee Packed-XP.d!62C0F0C2D2B6
MAX malware (ai score=100)
VBA32 BScope.Trojan.Chapak
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom.Win32.GANDCRAB.SMLA.hp
Rising Ransom.GandCrab!8.F355 (TFE:dGZlOgVLMgwg9AzoBA)
Yandex Trojan.GenAsa!nr8vZyWtzv4
SentinelOne Static AI – Malicious PE
MaxSecure Ransomeware.GandCrypt.Gen
Fortinet W32/GenKryptik.CNAR!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Ransom.ec9

How to remove Win32/Kryptik.GHOG 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.GHOG 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.GHOG 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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