Win32/Kryptik.GGCH

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

What is Win32/Kryptik.GGCH infection?

In this post you will locate about the interpretation of Win32/Kryptik.GGCH and its negative effect on your computer system. Such ransomware are a kind of malware that is clarified by on the internet scams to require paying the ransom money by a sufferer.

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In the majority of the instances, Win32/Kryptik.GGCH infection will advise its targets to initiate funds transfer for the purpose of counteracting the changes that the Trojan infection has presented to the victim’s tool.

Win32/Kryptik.GGCH 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.
  • 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
  • Attempts to identify installed AV products by installation directory;
  • 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 found on the target’s hard disk drive — so the sufferer can no longer utilize the information;
  • Preventing routine accessibility 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.GGCH

The most normal networks whereby Win32/Kryptik.GGCH Ransomware Trojans are infused are:

  • By ways of phishing emails;
  • As a consequence of individual ending up on a source that hosts a harmful software program;

As soon as the Trojan is successfully injected, it will certainly either cipher the information on the victim’s computer or protect against the device from working in a correct way – while also putting a ransom note that discusses the demand for the targets to impact the repayment for the objective of decrypting the files or restoring the file system back to the initial problem. In a lot of circumstances, the ransom note will certainly show up when the customer restarts the COMPUTER after the system has actually currently been damaged.

Win32/Kryptik.GGCH distribution networks.

In numerous corners of the globe, Win32/Kryptik.GGCH grows by jumps and also bounds. However, the ransom notes and also techniques of extorting the ransom amount may differ depending on particular regional (regional) settings. The ransom notes and methods of extorting the ransom money quantity may differ depending on specific neighborhood (local) setups.

Ransomware injection

For example:

    Faulty signals concerning unlicensed software program.

    In specific locations, the Trojans commonly wrongfully report having discovered some unlicensed applications enabled on the victim’s device. The sharp after that requires the individual to pay the ransom.

    Faulty declarations concerning unlawful material.

    In nations where software program piracy is less prominent, this approach is not as reliable for the cyber scams. Alternatively, the Win32/Kryptik.GGCH popup alert might incorrectly assert to be originating from a law enforcement institution as well as will report having situated youngster porn or other illegal information on the tool.

    Win32/Kryptik.GGCH popup alert might falsely claim to be acquiring from a regulation enforcement institution and will certainly report having located kid pornography or various other illegal data on the gadget. The alert will likewise consist of a need for the customer to pay the ransom money.

Technical details

File Info:

crc32: 42597673
md5: 69b80b2b05bf6de50973952d369f8784
name: 69B80B2B05BF6DE50973952D369F8784.mlw
sha1: 4f9617dbf62572f55868e58a33d95151ca6604e6
sha256: 7a43e241cf0e1632f811f9d9b2e95bc640f4f2ac9dfe887b2d72f9139f2b7e3d
sha512: 85b132a17823f6794a618e9bba38fa42f17c33acd9183a13e9f944a39f3d3a920cb8e348211db54b70e7696649abd491e91e56b444759a39ca1ea949d9f08838
ssdeep: 3072:4bu6tEnqep+Dxlaa1/jzb18xT4uoEzFcEjRnpZQknMoRp652vs2Ej8Vm:gu6t+1pQbVWxT1HBmkMonvsRj8Vm
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.GGCH also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.Ransom.GandCrab.Gen.2
FireEye Generic.mg.69b80b2b05bf6de5
CAT-QuickHeal Trojan.Chapak.ZZ5
McAfee GenericRXFD-FB!69B80B2B05BF
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Win.Packed.Gandcrab-6552923-4
K7AntiVirus Trojan ( 0053305e1 )
BitDefender Trojan.Ransom.GandCrab.Gen.2
K7GW Trojan ( 0053305e1 )
CrowdStrike win/malicious_confidence_100% (D)
Cyren W32/S-7ee84da4!Eldorado
Symantec Packed.Generic.525
APEX Malicious
Avast FileRepMalware
ClamAV Win.Packed.Gandcrab-6552923-4
Kaspersky HEUR:Trojan.Win32.Generic
NANO-Antivirus Trojan.Win32.Encoder.farwkq
ViRobot Trojan.Win32.GandCrab.Gen.A
Rising Trojan.Kryptik!1.B1E3 (CLASSIC)
Ad-Aware Trojan.Ransom.GandCrab.Gen.2
Sophos Mal/Generic-R + Mal/Agent-AUL
Comodo TrojWare.Win32.Chapak.GG@7ne4ou
F-Secure Heuristic.HEUR/AGEN.1106533
DrWeb Trojan.Encoder.24384
Zillya Downloader.Upatre.Win32.65949
TrendMicro Ransom.Win32.GANDCRAB.SMLA.hp
McAfee-GW-Edition BehavesLike.Win32.Generic.dc
Emsisoft Trojan.Ransom.GandCrab.Gen.2 (B)
Ikarus Trojan-Ransom.GandCrab
Jiangmin Trojan.Chapak.hq
MaxSecure Ransomeware.GandCrypt.Gen
Avira HEUR/AGEN.1106533
MAX malware (ai score=99)
Antiy-AVL Trojan/Win32.TSGeneric
Microsoft Ransom:Win32/Gandcrab.E!MTB
Arcabit Trojan.Ransom.GandCrab.Gen.2
SUPERAntiSpyware Trojan.Agent/Gen-Kryptik
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Ransom.GandCrab.Gen.2
Cynet Malicious (score: 100)
AhnLab-V3 Win-Trojan/Gandcrab.Exp
Acronis suspicious
BitDefenderTheta Gen:NN.ZexaF.34608.nuX@amEmBxb
ALYac Trojan.Ransom.GandCrab.Gen.2
TACHYON Ransom/W32.GandCrab
VBA32 BScope.Trojan.Chapak
Malwarebytes MachineLearning/Anomalous.95%
Panda Trj/Genetic.gen
ESET-NOD32 a variant of Win32/Kryptik.GGCH
TrendMicro-HouseCall Ransom.Win32.GANDCRAB.SMLA.hp
Tencent Malware.Win32.Gencirc.10b3df96
Yandex Trojan.DL.Upatre!OA1lJEzrtLA
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_99%
Fortinet W32/Agent.BFJ!tr
AVG FileRepMalware
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Ransom.12b

How to remove Win32/Kryptik.GGCH virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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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.GGCH 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.GGCH 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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