Win32/Kryptik.GYIT

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

What is Win32/Kryptik.GYIT infection?

In this post you will certainly find about the meaning of Win32/Kryptik.GYIT and also its negative impact on your computer. Such ransomware are a kind of malware that is specified by on-line frauds to demand paying the ransom by a victim.

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Most of the cases, Win32/Kryptik.GYIT ransomware will advise its targets to start funds transfer for the objective of counteracting the modifications that the Trojan infection has introduced to the target’s tool.

Win32/Kryptik.GYIT 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Attempts to connect to a dead IP:Port (2 unique times);
  • 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.
  • Starts servers listening on 127.0.0.1:46715;
  • 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.

  • 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.
  • Executed a process and injected code into it, probably while unpacking;
  • Installs Tor on the infected machine;
  • 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
  • Collects information about installed applications;
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files found on the sufferer’s hard drive — so the target can no longer make use of 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.GYIT

One of the most typical networks through which Win32/Kryptik.GYIT Trojans are injected are:

  • By ways of phishing e-mails;
  • As a consequence of individual ending up on a source that hosts a malicious software;

As quickly as the Trojan is effectively injected, it will certainly either cipher the data on the victim’s PC or prevent the gadget from functioning in an appropriate manner – while additionally positioning a ransom note that points out the demand for the targets to impact the payment for the objective of decrypting the records or recovering the data system back to the first problem. In the majority of circumstances, the ransom money note will certainly come up when the customer reboots the COMPUTER after the system has actually already been harmed.

Win32/Kryptik.GYIT distribution networks.

In various edges of the world, Win32/Kryptik.GYIT expands by leaps and also bounds. Nonetheless, the ransom notes as well as tricks of extorting the ransom money amount might differ depending upon specific neighborhood (local) setups. The ransom notes as well as techniques of obtaining the ransom quantity may differ depending on particular local (regional) setups.

Ransomware injection

For example:

    Faulty alerts regarding unlicensed software program.

    In particular locations, the Trojans often wrongfully report having detected some unlicensed applications made it possible for on the victim’s device. The alert after that demands the customer to pay the ransom.

    Faulty statements regarding illegal content.

    In countries where software program piracy is less prominent, this approach is not as effective for the cyber scams. Additionally, the Win32/Kryptik.GYIT popup alert might wrongly claim to be originating from a law enforcement establishment and will report having situated child porn or various other unlawful information on the device.

    Win32/Kryptik.GYIT popup alert might wrongly declare to be acquiring from a regulation enforcement organization and will report having situated child porn or various other prohibited data on the gadget. The alert will likewise contain a demand for the individual to pay the ransom money.

Technical details

File Info:

crc32: 1D335E4A
md5: 346c0d5722c95ac1ab099227c70e2b9f
name: 2c.jpg
sha1: dc859baf9302230f7b9eedf8347ab258e0add5bf
sha256: cb229ca0114835dd255b1069e9995581217ac862347fa81f8c6bd230bb3edcc2
sha512: b4b9aa0ada60ff0e16ec40928827f1f9b13b4241e1902c638217dc62bed13794d06d838ce84b4062edcfe5a6c8dece2ce09debb3e7ad73fc1cd20565f34adac3
ssdeep: 24576:K0XoSFVAgm6Tmhjh5PIiZzIibVAnh163BJcb:K/CVs6mjh9bVyaxKb
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

FileOldVersion: 1.0.4.4
InternalName: gjdtth.exe
Copyright: Copyright (C) 2020, odfgbiv
Translation: 0x0841 0x04c4

Win32/Kryptik.GYIT also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectVM.malware
MicroWorld-eScan Trojan.GenericKD.32713656
FireEye Generic.mg.346c0d5722c95ac1
CAT-QuickHeal Ransom.Stop.P5
McAfee GenericRXJC-QW!346C0D5722C9
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Malware
K7AntiVirus Trojan ( 0055b0f71 )
BitDefender Trojan.GenericKD.32713656
K7GW Trojan ( 0055b0f71 )
Cybereason malicious.f93022
TrendMicro Trojan.Win32.SMOKELOAD.SMD2.hp
F-Prot W32/Shade.AP
APEX Malicious
Paloalto generic.ml
ClamAV Win.Dropper.Tofsee-7489241-0
GData Trojan.GenericKD.32713656
Kaspersky Trojan-Ransom.Win32.Agent.avzi
Alibaba Ransom:Win32/Troldesh.1b735222
NANO-Antivirus Trojan.Win32.Encoder.ghvfsb
AegisLab Adware.Win32.SoftPulse.m2pZ
Rising Trojan.Kryptik!1.BE74 (CLOUD)
Endgame malicious (high confidence)
Emsisoft Trojan.Generic.EF (A)
Comodo Malware@#3rlp9qyu0qu4z
F-Secure Heuristic.HEUR/AGEN.1045577
DrWeb Trojan.Encoder.858
Invincea heuristic
McAfee-GW-Edition BehavesLike.Win32.Generic.tc
Trapmine suspicious.low.ml.score
Sophos Troj/Ransom-FSO
Ikarus Trojan-Downloader.Win32.SmokeLoader
Cyren W32/Trojan.NBHE-0176
Jiangmin TrojanDownloader.Bandit.avd
eGambit Unsafe.AI_Score_99%
Avira HEUR/AGEN.1045577
Webroot W32.Trojan.Gen
MAX malware (ai score=83)
Antiy-AVL Trojan[Ransom]/Win32.Agent
Arcabit Trojan.Generic.D1F32BB8
ZoneAlarm Trojan-Ransom.Win32.Agent.avzi
Microsoft Ransom:Win32/Troldesh.A
AhnLab-V3 Trojan/Win32.MalPe.R299328
Acronis suspicious
VBA32 BScope.TrojanDownloader.Bandit
ALYac Trojan.Ransom.Shade
Ad-Aware Trojan.GenericKD.32713656
Malwarebytes Trojan.MalPack.GS
Panda Trj/GdSda.A
ESET-NOD32 a variant of Win32/Kryptik.GYIT
TrendMicro-HouseCall Trojan.Win32.SMOKELOAD.SMD2.hp
Tencent Win32.Trojan.Agent.Liqu
Yandex Riskware.NetTool!
SentinelOne DFI – Malicious PE
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Kryptik.GYIT!tr
BitDefenderTheta Gen:NN.ZexaF.34100.av0@auwilQc
AVG Win32:TrojanX-gen [Trj]
Avast Win32:TrojanX-gen [Trj]
CrowdStrike win/malicious_confidence_100% (W)
Qihoo-360 Win32/Trojan.Ransom.0e7

How to remove Win32/Kryptik.GYIT 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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The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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.GYIT 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.GYIT 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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