Win32/Kryptik.GNDJ

What is Win32/Kryptik.GNDJ infection?

In this short article you will certainly locate concerning the definition of Win32/Kryptik.GNDJ and also its negative impact on your computer. Such ransomware are a kind of malware that is clarified by on-line scams to demand paying the ransom money by a sufferer.

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In the majority of the situations, Win32/Kryptik.GNDJ infection will instruct its victims to initiate funds transfer for the function of neutralizing the modifications that the Trojan infection has actually presented to the victim’s tool.

Win32/Kryptik.GNDJ Summary

These adjustments 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.
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • 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;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the files located on the victim’s hard disk — so the target can no longer utilize the information;
  • Preventing normal access to the sufferer’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.GNDJ

One of the most normal networks whereby Win32/Kryptik.GNDJ Ransomware are injected are:

  • By means of phishing e-mails;
  • As a repercussion of customer winding up on a resource that hosts a destructive software program;

As quickly as the Trojan is successfully injected, it will certainly either cipher the information on the sufferer’s computer or prevent the gadget from working in an appropriate fashion – while likewise positioning a ransom money note that mentions the demand for the sufferers to impact the repayment for the function of decrypting the documents or restoring the file system back to the initial problem. In a lot of instances, the ransom money note will certainly show up when the client restarts the PC after the system has already been damaged.

Win32/Kryptik.GNDJ distribution networks.

In numerous edges of the world, Win32/Kryptik.GNDJ grows by leaps and bounds. Nonetheless, the ransom notes as well as methods of obtaining the ransom money quantity might differ relying on certain local (local) settings. The ransom money notes as well as techniques of obtaining the ransom quantity may differ depending on certain regional (local) settings.

Ransomware injection

For instance:

    Faulty alerts about unlicensed software.

    In certain locations, the Trojans often wrongfully report having identified some unlicensed applications allowed on the victim’s gadget. The sharp after that demands the customer to pay the ransom.

    Faulty declarations regarding prohibited web content.

    In countries where software program piracy is less preferred, this technique is not as reliable for the cyber frauds. Alternatively, the Win32/Kryptik.GNDJ popup alert might incorrectly claim to be deriving from a law enforcement institution as well as will report having situated child pornography or other prohibited data on the tool.

    Win32/Kryptik.GNDJ popup alert might falsely declare to be obtaining from a law enforcement organization and will certainly report having located youngster porn or other illegal data on the tool. The alert will likewise consist of a need for the individual to pay the ransom.

Technical details

File Info:

crc32: F6FB96C6
md5: d4675af4c2625ad92403c69cb12557e6
name: D4675AF4C2625AD92403C69CB12557E6.mlw
sha1: 0deed0ce4ff79dd3ac653c693506428f75ab58f1
sha256: 74d6a853a75ed02c765d9eac439d95bc262d96e6fe367bd54bf489fc4c2d4714
sha512: e1aa7098e03205e8d293bfb07083d5dd866bf0d6871c168a7e1ce1e544bd30850ce6484ce5b34fb11e8a374e3b784cbb83196d40e7c644d52ecc9058971984a3
ssdeep: 3072:6qO5MO6MFZiHk/jnwkO7jOJCP3ldQm+WtftlrtLaJdCMJxdZEuNrG:W6MFwHk/jnm7jOaHQmXtvaJdhx
type: PE32 executable (GUI) Intel 80386 system file, for MS Windows

Version Info:

InternalName: jteru.ola

Win32/Kryptik.GNDJ also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 00543e471 )
Elastic malicious (high confidence)
DrWeb Trojan.MulDrop8.59949
Cynet Malicious (score: 100)
ALYac Trojan.Brsecmon.1
Cylance Unsafe
Zillya Trojan.Chapak.Win32.38509
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Trojan:Win32/Gandcrab.350f8772
K7GW Trojan ( 00543e471 )
Cybereason malicious.4c2625
Cyren W32/Kryptik.SH.gen!Eldorado
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GNDJ
APEX Malicious
Avast Win32:MalwareX-gen [Trj]
ClamAV Win.Packed.Azorult-7596348-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Brsecmon.1
NANO-Antivirus Trojan.Win32.Chapak.fkqzrp
MicroWorld-eScan Trojan.Brsecmon.1
Tencent Win32.Trojan.Generic.Wqct
Ad-Aware Trojan.Brsecmon.1
Sophos Mal/Generic-S + Mal/GandCrab-G
Comodo TrojWare.Win32.Chapak.LB@7zyuc7
BitDefenderTheta Gen:NN.ZexaF.34670.ku0@a4GEsXie
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom.Win32.GANDCRAB.SMKLI.hp
McAfee-GW-Edition BehavesLike.Win32.Generic.ch
FireEye Generic.mg.d4675af4c2625ad9
Emsisoft Trojan.Brsecmon.1 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan.Chapak.ady
Avira HEUR/AGEN.1107206
eGambit Unsafe.AI_Score_99%
Antiy-AVL Trojan/Win32.Chapak
Microsoft Trojan:Win32/Gandcrab.VRD!MTB
Arcabit Trojan.Brsecmon.1
AegisLab Trojan.Win32.Chapak.4!c
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Brsecmon.1
AhnLab-V3 Malware/Gen.Generic.C2855150
Acronis suspicious
McAfee GenericRXGQ-DY!D4675AF4C262
VBA32 BScope.Trojan.Vigorf
Malwarebytes Trojan.Crypt
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom.Win32.GANDCRAB.SMKLI.hp
Rising Trojan.Kryptik!1.B50A (CLOUD)
Yandex Trojan.GenAsa!85YM+61oA6c
Ikarus Trojan.Win32.Gandcrab
Fortinet W32/Generic.AP.23529E!tr
AVG Win32:MalwareX-gen [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Generic.HwoCuX8A

How to remove Win32/Kryptik.GNDJ 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.GNDJ 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.GNDJ 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/products/

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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