Win32/Kryptik.GHEN

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

What is Win32/Kryptik.GHEN infection?

In this short article you will find concerning the meaning of Win32/Kryptik.GHEN and its negative effect on your computer. Such ransomware are a form of malware that is elaborated by on the internet fraudulences to demand paying the ransom money by a sufferer.

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In the majority of the cases, Win32/Kryptik.GHEN infection will advise its victims to initiate funds move for the function of reducing the effects of the amendments that the Trojan infection has actually introduced to the sufferer’s tool.

Win32/Kryptik.GHEN 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.
  • 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.

  • Performs some HTTP requests;
  • Unconventionial language used in binary resources: Spanish (Guatemala);
  • 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 documents situated on the target’s hard disk drive — so the target can no longer use the information;
  • 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.
Similar behavior
Related domains
z.whorecord.xyzWin32/Trojan.Ransom.5d2
a.tomx.xyzWin32/Trojan.Ransom.5d2
ipv4bot.whatismyipaddress.comWin32/Trojan.Ransom.5d2
ns1.wowservers.ruWin32/Trojan.Ransom.5d2
carder.bitWin32/Trojan.Ransom.5d2
ns2.wowservers.ruWin32/Trojan.Ransom.5d2
ransomware.bitWin32/Trojan.Ransom.5d2

Win32/Kryptik.GHEN

One of the most common networks whereby Win32/Kryptik.GHEN Ransomware Trojans are infused are:

  • By means of phishing e-mails;
  • As an effect of individual winding up on a resource that hosts a malicious software program;

As soon as the Trojan is successfully injected, it will certainly either cipher the data on the target’s PC or protect against the device from operating in an appropriate way – while additionally putting a ransom money note that discusses the requirement for the targets to effect the settlement for the purpose of decrypting the files or bring back the data system back to the preliminary problem. In a lot of instances, the ransom note will turn up when the customer reboots the PC after the system has currently been harmed.

Win32/Kryptik.GHEN distribution channels.

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

Ransomware injection

For instance:

    Faulty signals concerning unlicensed software program.

    In certain areas, the Trojans frequently wrongfully report having actually found some unlicensed applications enabled on the target’s gadget. The sharp then requires the user to pay the ransom money.

    Faulty statements concerning unlawful material.

    In nations where software application piracy is much less preferred, this method is not as reliable for the cyber frauds. Additionally, the Win32/Kryptik.GHEN popup alert might wrongly claim to be deriving from a law enforcement organization as well as will certainly report having located youngster pornography or other prohibited information on the device.

    Win32/Kryptik.GHEN popup alert may falsely claim to be deriving from a law enforcement establishment as well as will report having situated youngster porn or various other unlawful information on the tool. The alert will likewise contain a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 06B5E625
md5: 8a9072a9ebc3b1f898b5caa1440466d6
name: 8A9072A9EBC3B1F898B5CAA1440466D6.mlw
sha1: 7ca122fa2023c1c09ba0716189e43d32ddd3dd4c
sha256: 8b6a78990efac78c814f32e22eaa3b92e1a8a66fcef5bbcebc4bf936c2f015a5
sha512: edafc7f97f5b9be680b5bfc1c8f735b24ccfc63c08e21c7e99173c0537b058db0d46574a3fd6902f8b9e645d1cd322642bf3963a11bb394be0624cf9e5c8ba95
ssdeep: 6144:NWy4UAObSIuaL33uxER+xiv4dAhzd/eOUK:NZLEI7exhwm+d/FUK
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2017, tvezabpuehb
FileVersion: 6.3.6.8
ProductVersion: 6.3.6.8
Translation: 0x0809 0x04b0

Win32/Kryptik.GHEN also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware2
Elasticmalicious (high confidence)
ClamAVWin.Packer.Crypter-6539596-1
FireEyeGeneric.mg.8a9072a9ebc3b1f8
CAT-QuickHealTrojan.Chapak.ZZ5
Qihoo-360Win32/Trojan.Ransom.5d2
McAfeeTrojan-FPOH!8A9072A9EBC3
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
AegisLabTrojan.Win32.GandCrypt.j!c
SangforTrojan.Win32.Save.a
K7AntiVirusTrojan ( 0053305e1 )
BitDefenderTrojan.Ransom.GandCrab.Gen.2
K7GWTrojan ( 655333331 )
Cybereasonmalicious.9ebc3b
CyrenW32/S-2775023f!Eldorado
SymantecPacked.Generic.525
APEXMalicious
AvastFileRepMalware
CynetMalicious (score: 100)
KasperskyHEUR:Trojan.Win32.Generic
AlibabaTrojan:Win32/Gandcrab.19aff5b9
NANO-AntivirusTrojan.Win32.Fareit.fcwhhx
ViRobotTrojan.Win32.GandCrab.Gen.A
MicroWorld-eScanTrojan.Ransom.GandCrab.Gen.2
RisingTrojan.Fuerboos!8.EFC8 (CLOUD)
Ad-AwareTrojan.Ransom.GandCrab.Gen.2
EmsisoftTrojan.Ransom.GandCrab.Gen.2 (B)
ComodoTrojWare.Win32.Cloxer.AY@7o68fu
DrWebTrojan.Encoder.24384
ZillyaTrojan.GandCrypt.Win32.300
TrendMicroRansom.Win32.GANDCRAB.SMLA.hp
McAfee-GW-EditionBehavesLike.Win32.Generic.fc
SophosMal/Generic-R + Mal/Agent-AUL
IkarusTrojan-Ransom.GandCrab
JiangminTrojanDownloader.Upatre.ajhu
AviraHEUR/AGEN.1103298
MAXmalware (ai score=100)
Antiy-AVLTrojan/Win32.TSGeneric
MicrosoftTrojan:Win32/Gandcrab.AF
ArcabitTrojan.Ransom.GandCrab.Gen.2
SUPERAntiSpywareTrojan.Agent/Gen-Vigorf
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataTrojan.Ransom.GandCrab.Gen.2
AhnLab-V3Win-Trojan/Gandcrab.Exp
Acronissuspicious
BitDefenderThetaGen:NN.ZexaF.34590.sy1@ae4blmQG
ALYacTrojan.Ransom.GandCrab.Gen.2
TACHYONRansom/W32.GandCrab
VBA32Malware-Cryptor.Limpopo
MalwarebytesGandcrab.Ransom.Encrypt.DDS
PandaTrj/Genetic.gen
ESET-NOD32a variant of Win32/Kryptik.GHEN
TrendMicro-HouseCallRansom.Win32.GANDCRAB.SMLA.hp
TencentMalware.Win32.Gencirc.10b26d78
YandexTrojan.GenAsa!QNyI/7NITJU
SentinelOneStatic AI – Malicious PE
eGambitUnsafe.AI_Score_99%
FortinetW32/GenKryptik.CNAR!tr
AVGFileRepMalware
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_100% (D)
MaxSecureRansomeware.CRAB.gen

How to remove Win32/Kryptik.GHEN ransomware?

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.GHEN 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Win32/Kryptik.GHEN 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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