Win32/Kryptik.GHUK

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

What is Win32/Kryptik.GHUK infection?

In this article you will certainly locate concerning the interpretation of Win32/Kryptik.GHUK 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 situations, Win32/Kryptik.GHUK virus will certainly advise its sufferers to start funds transfer for the function of neutralizing the amendments that the Trojan infection has presented to the target’s device.

Win32/Kryptik.GHUK 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.
  • Injection with CreateRemoteThread in a remote process;
  • 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 created a hidden window;
  • 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!
  • A system process is generating network traffic likely as a result of process injection;
  • 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
  • Creates a copy of itself;
  • Creates a slightly modified copy of itself;
  • Ciphering the papers situated on the target’s hard disk drive — so the target can no more make use of the data;
  • Preventing routine accessibility 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.GHUK

One of the most common channels whereby Win32/Kryptik.GHUK Ransomware Trojans are infused are:

  • By means of phishing emails;
  • As a consequence of individual winding up on a source that holds a malicious software application;

As quickly as the Trojan is successfully injected, it will certainly either cipher the information on the target’s PC or stop the gadget from working in an appropriate way – while also positioning a ransom note that points out the demand for the victims to impact the payment for the function of decrypting the documents or recovering the documents system back to the preliminary condition. In the majority of instances, the ransom money note will turn up when the client restarts the PC after the system has currently been damaged.

Win32/Kryptik.GHUK circulation networks.

In various corners of the world, Win32/Kryptik.GHUK expands by jumps as well as bounds. Nevertheless, the ransom notes and also methods of extorting the ransom money quantity might vary relying on particular local (local) setups. The ransom money notes and also tricks of extorting the ransom money quantity may differ depending on specific regional (local) setups.

Ransomware injection

For instance:

    Faulty notifies concerning unlicensed software application.

    In specific areas, the Trojans usually wrongfully report having detected some unlicensed applications allowed on the sufferer’s device. The sharp after that requires the customer to pay the ransom.

    Faulty statements about prohibited content.

    In countries where software application piracy is less preferred, this technique is not as efficient for the cyber fraudulences. Additionally, the Win32/Kryptik.GHUK popup alert might falsely assert to be deriving from a police institution and also will certainly report having located child porn or other unlawful information on the tool.

    Win32/Kryptik.GHUK popup alert may incorrectly claim to be deriving from a legislation enforcement organization and also will certainly report having situated youngster pornography or various other unlawful data on the gadget. The alert will in a similar way contain a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: 5CA1864D
md5: a010a28a671b664e165eabb0d875fb23
name: A010A28A671B664E165EABB0D875FB23.mlw
sha1: c4baae419a3ed5e61fd81bed4d52e65466ad6559
sha256: 7b32b14f6a69f504862b3fa68e4c143953d5586f7234f331f42d1df46bab7ace
sha512: c88b01af8592e9923f5997c74ee7b45eb04d8427702243b5ef0d697a7d9b0eca8231cc2ab0009aa70944e03b0aa3a40d61c2cc512b456a75a29b52c6a2d124d7
ssdeep: 6144:fHjXi41lPX8PSYdncKICzPuOiWHtl6Iyx2L3ciaT8/TdAQ:fBZX8PTjvPzX/yx2L7aT+
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0346 0x093e

Win32/Kryptik.GHUK also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 0053305e1 )
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.24384
CynetMalicious (score: 100)
CAT-QuickHealTrojan.Chapak.ZZ5
ALYacTrojan.GenericKDZ.44737
CylanceUnsafe
ZillyaTrojan.Coins.Win32.262
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
K7GWAdware ( 004ef1551 )
Cybereasonmalicious.a671b6
SymantecPacked.Generic.525
ESET-NOD32a variant of Win32/Kryptik.GHUK
APEXMalicious
AvastWin32:Malware-gen
ClamAVWin.Packer.Crypter-6539596-1
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderTrojan.GenericKDZ.44737
NANO-AntivirusTrojan.Win32.Encoder.fecsha
MicroWorld-eScanTrojan.GenericKDZ.44737
TencentWin32.Trojan.Generic.Lhwa
Ad-AwareTrojan.GenericKDZ.44737
SophosMal/Generic-R + Mal/GandCrab-B
ComodoTrojWare.Win32.Chapak.GN@7peol6
BitDefenderThetaGen:NN.ZexaF.34608.BuW@aCD4i4kO
TrendMicroMal_HPGen-37b
McAfee-GW-EditionBehavesLike.Win32.Generic.gc
FireEyeGeneric.mg.a010a28a671b664e
EmsisoftTrojan.GenericKDZ.44737 (B)
SentinelOneStatic AI – Malicious PE
AviraHEUR/AGEN.1121589
eGambitUnsafe.AI_Score_99%
MicrosoftTrojan:Win32/GandCrab.PVS!MTB
AegisLabTrojan.Win32.GandCrypt.tqDM
GDataTrojan.GenericKDZ.44737
AhnLab-V3Trojan/Win32.Agent.R230184
Acronissuspicious
McAfeeGenericRXFV-KL!A010A28A671B
MAXmalware (ai score=99)
VBA32BScope.TrojanRansom.GandCrypt
MalwarebytesTrojan.MalPack
PandaTrj/CI.A
TrendMicro-HouseCallMal_HPGen-37b
RisingMalware.Obscure!1.A3BB (CLASSIC)
YandexTrojan.GandCrypt!Uns6y1VuyL0
IkarusTrojan-Dropper.Win32.Danabot
MaxSecureRansomeware.CRAB.gen
FortinetW32/GenKryptik.CNAR!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml
Qihoo-360Win32/Trojan.6f7

How to remove Win32/Kryptik.GHUK 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.GHUK 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.GHUK 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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