What is Win32/Kryptik.JGK infection?

In this article you will locate regarding the meaning of Win32/Kryptik.JGK as well as its unfavorable influence on your computer system. Such ransomware are a kind of malware that is elaborated by online frauds to demand paying the ransom by a victim.

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Most of the instances, Win32/Kryptik.JGK ransomware will certainly instruct its victims to initiate funds move for the purpose of neutralizing the amendments that the Trojan infection has presented to the target’s device.

Win32/Kryptik.JGK Summary

These alterations can be as complies with:

  • 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.

  • 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.
  • Unconventionial language used in binary resources: Russian;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • The executable is compressed using UPX;
  • 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
  • Exhibits possible ransomware file modification behavior;
  • 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.
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a slightly modified copy of itself;
  • Ciphering the files situated on the target’s hard drive — so the target can no longer make use of the information;
  • Preventing normal access 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.


One of the most regular networks through which Win32/Kryptik.JGK are infused are:

  • By means of phishing emails;
  • As an effect of individual ending up on a resource that holds a harmful software program;

As quickly as the Trojan is efficiently injected, it will either cipher the data on the target’s PC or prevent the device from operating in a correct fashion – while also positioning a ransom money note that states the demand for the sufferers to impact the settlement for the function of decrypting the documents or restoring the data system back to the initial condition. In many instances, the ransom note will certainly show up when the client restarts the COMPUTER after the system has currently been harmed.

Win32/Kryptik.JGK circulation networks.

In numerous corners of the globe, Win32/Kryptik.JGK expands by jumps as well as bounds. Nevertheless, the ransom money notes as well as techniques of obtaining the ransom amount might differ relying on particular neighborhood (local) setups. The ransom notes and also tricks of extorting the ransom quantity may differ depending on particular regional (local) settings.

Ransomware injection

For example:

    Faulty notifies about unlicensed software program.

    In specific areas, the Trojans typically wrongfully report having actually found some unlicensed applications enabled on the target’s device. The alert after that requires the user to pay the ransom money.

    Faulty statements concerning illegal material.

    In countries where software piracy is less prominent, this approach is not as efficient for the cyber fraudulences. Conversely, the Win32/Kryptik.JGK popup alert may wrongly declare to be originating from a law enforcement organization and will certainly report having situated child pornography or various other prohibited information on the tool.

    Win32/Kryptik.JGK popup alert might wrongly assert to be acquiring from a law enforcement establishment and will report having located child porn or other prohibited data on the gadget. The alert will similarly include a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: 251D3112
md5: 43da80dbad3dabfbb5cb1d93293414f4
name: 43DA80DBAD3DABFBB5CB1D93293414F4.mlw
sha1: 7ac41d57211595b3da223d065d0ef25ad6d8dea5
sha256: 913f419440daa97653da30a1f294a9bcf9f053c62abfdcbaf81e05797573e828
sha512: 9b3984d1a733c6a1b23030fa4d8a7b211e0677bf4b8accb16d08c12e39002d57b47f0ae12fffbccc9a017ad1f94cb376f02b6f6303f1df9556eac3173afc0f40
ssdeep: 1536:OfYQr6ZTFwW3CedrGLJt0qaQ7nOgVTZvwMZpb9pI6H9OHEf1+nouy82RO:MYw69FwsCPBTJ9JwApbQ95out2Y
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Win32/Kryptik.JGK also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( f1000f011 )
Elastic malicious (high confidence)
DrWeb BackDoor.Click.1076
Cynet Malicious (score: 100)
ALYac Trojan.Zbot.1460
Cylance Unsafe
Zillya Dropper.Drooptroop.Win32.4557
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_60% (D)
Alibaba VirTool:Win32/Obfuscator.83f77233
K7GW Trojan ( f1000f011 )
Cybereason malicious.bad3da
Symantec Trojan.Bamital!gen2
ESET-NOD32 a variant of Win32/Kryptik.JGK
APEX Malicious
TotalDefense Win32/Spyeye.C!generic
Avast Win32:MDE-A [Susp]
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Zbot.1460
NANO-Antivirus Trojan.Win32.Drooptroop.dyhhe
MicroWorld-eScan Trojan.Zbot.1460
Tencent Malware.Win32.Gencirc.10bf555a
Ad-Aware Trojan.Zbot.1460
Comodo TrojWare.Win32.Trojan.XPACK.Gen@2ho5ur
BitDefenderTheta AI:Packer.79BEF2181F
VIPRE Trojan.Win32.Bamital.i (v)
Emsisoft Trojan.Zbot.1460 (B)
Jiangmin TrojanDropper.Drooptroop.dgf
Avira TR/Dropper.Gen
Microsoft Ransom:Win32/Blocker
Arcabit Trojan.Zbot.D5B4
GData Trojan.Zbot.1460
AhnLab-V3 Backdoor/Win32.Shiz.R2353
McAfee W32/Bamital.h
MAX malware (ai score=84)
VBA32 Trojan.MTA.01240
Malwarebytes Malware.Heuristic.1003
Panda Trj/GdSda.A
TrendMicro-HouseCall TROJ_BAMITAL.SMK
Rising Dropper.Generic!8.35E (CLOUD)
Yandex Trojan.DR.Drooptroop!1+bdITEM/Lk
Ikarus Trojan-Ransom.PornoBlocker
Fortinet W32/Krap.A!tr
AVG Win32:MDE-A [Susp]
Qihoo-360 Win32/Trojan.Zbot.HgIASOgA

How to remove Win32/Kryptik.JGK 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.JGK 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.JGK you can always ask me in the comments for getting help.

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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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