Win32/Kryptik.GHJY

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

What is Win32/Kryptik.GHJY infection?

In this post you will locate about the definition of Win32/Kryptik.GHJY as well as its adverse influence on your computer system. Such ransomware are a type of malware that is specified by online fraudulences to require paying the ransom money by a victim.

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In the majority of the instances, Win32/Kryptik.GHJY ransomware will advise its targets to start funds transfer for the function of reducing the effects of the changes that the Trojan infection has introduced to the target’s tool.

Win32/Kryptik.GHJY Summary

These adjustments 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.
  • 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 papers located on the sufferer’s hard disk drive — so the sufferer can no more utilize 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.
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.GHJY

One of the most normal networks through which Win32/Kryptik.GHJY Ransomware are injected are:

  • By means of phishing emails;
  • As an effect of individual ending up on a source that hosts a malicious software program;

As soon as the Trojan is efficiently injected, it will certainly either cipher the data on the sufferer’s computer or avoid the tool from working in a proper manner – while also positioning a ransom money note that discusses the requirement for the targets to impact the settlement for the purpose of decrypting the documents or recovering the documents system back to the first condition. In the majority of instances, the ransom money note will come up when the client reboots the PC after the system has actually already been damaged.

Win32/Kryptik.GHJY circulation networks.

In different edges of the world, Win32/Kryptik.GHJY grows by jumps as well as bounds. Nonetheless, the ransom notes as well as techniques of obtaining the ransom money quantity might differ relying on certain local (regional) setups. The ransom notes and also tricks of obtaining the ransom money quantity may vary depending on certain neighborhood (local) setups.

Ransomware injection

As an example:

    Faulty alerts regarding unlicensed software program.

    In certain areas, the Trojans frequently wrongfully report having actually detected some unlicensed applications allowed on the target’s device. The sharp then requires the customer to pay the ransom.

    Faulty statements regarding prohibited content.

    In countries where software piracy is less preferred, this technique is not as effective for the cyber frauds. Conversely, the Win32/Kryptik.GHJY popup alert may wrongly claim to be deriving from a police institution as well as will certainly report having situated kid pornography or other unlawful information on the tool.

    Win32/Kryptik.GHJY popup alert may falsely claim to be obtaining from a law enforcement institution and also will certainly report having located child porn or various other unlawful information on the gadget. The alert will likewise contain a need for the individual to pay the ransom.

Technical details

File Info:

crc32: 757A8B18
md5: a4e9cf71f4a5b322acbe5cae93e24fab
name: A4E9CF71F4A5B322ACBE5CAE93E24FAB.mlw
sha1: f1149214f8d70a75966a56fb80b7cf7e415a7254
sha256: 4d2bccf64c203ddba42c9c5ac4b1a4ed9ead2a4037b1058f5814c091eda7db2c
sha512: 8d4968fd1890281bc0165283972aac6792e2756108b71171086729a913a6b47e29b0985567a2ec19f72fb5f9b7372c42204cbffb34f91af7f89cdc3a182dbd78
ssdeep: 6144:1dh0G5iJ0/wTxbca1cDo3PQ+dnacuWlPC:1L5i2/wU6QoFC
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.GHJY also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.24384
MicroWorld-eScanTrojan.Ransom.GandCrab.Gen.2
FireEyeGeneric.mg.a4e9cf71f4a5b322
CAT-QuickHealTrojan.Mauvaise.SL1
Qihoo-360Win32/Trojan.Ransom.87a
ALYacTrojan.Ransom.GandCrab.Gen.2
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
AegisLabTrojan.Win32.GandCrypt.j!c
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
BitDefenderTrojan.Ransom.GandCrab.Gen.2
K7GWTrojan ( 005376c81 )
K7AntiVirusTrojan ( 005376c81 )
BitDefenderThetaGen:NN.ZexaF.34590.oyX@ampA97ji
CyrenW32/S-834d15b1!Eldorado
SymantecPacked.Generic.525
TrendMicro-HouseCallRansom.Win32.GANDCRAB.SMLA.hp
AvastFileRepMalware
ClamAVWin.Packer.Crypter-6539596-1
KasperskyHEUR:Trojan.Win32.Generic
NANO-AntivirusTrojan.Win32.GandCrypt.fdnyho
ViRobotTrojan.Win32.GandCrab.Gen.A
RisingDropper.Generic!8.35E (CLOUD)
Ad-AwareTrojan.Ransom.GandCrab.Gen.2
SophosMal/Generic-R + Mal/Agent-AUL
ComodoTrojWare.Win32.PSW.Coins.GH@7ohrdk
F-SecureTrojan.TR/AD.GandCrab.hhf
ZillyaTrojan.GandCrypt.Win32.301
TrendMicroRansom.Win32.GANDCRAB.SMLA.hp
McAfee-GW-EditionBehavesLike.Win32.Generic.dc
EmsisoftTrojan.Ransom.GandCrab.Gen.2 (B)
IkarusTrojan.Win32.DNSChanger
JiangminTrojan.GandCrypt.eb
AviraTR/AD.GandCrab.hhf
MAXmalware (ai score=99)
Antiy-AVLTrojan[Ransom]/Win32.GandCrypt
MicrosoftRansom:Win32/GandCrab.AE
ArcabitTrojan.Ransom.GandCrab.Gen.2
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataTrojan.Ransom.GandCrab.Gen.2
CynetMalicious (score: 100)
AhnLab-V3Win-Trojan/Gandcrab.Exp
Acronissuspicious
McAfeePacked-FGQ!A4E9CF71F4A5
TACHYONRansom/W32.GandCrab
VBA32BScope.Trojan.Encoder
MalwarebytesTrojan.MalPack
PandaTrj/Genetic.gen
APEXMalicious
ESET-NOD32a variant of Win32/Kryptik.GHJY
TencentMalware.Win32.Gencirc.10b1cd2d
YandexTrojan.GenAsa!KIQuR5zhXYQ
SentinelOneStatic AI – Malicious PE
FortinetW32/GenKryptik.CNAR!tr
AVGFileRepMalware
Paloaltogeneric.ml
MaxSecureRansomeware.CRAB.gen

How to remove Win32/Kryptik.GHJY 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.GHJY 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.GHJY 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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