Win32/Kryptik.GJEK

What is Win32/Kryptik.GJEK infection?

In this short article you will find regarding the meaning of Win32/Kryptik.GJEK and its unfavorable impact on your computer system. Such ransomware are a form of malware that is elaborated by on the internet frauds to demand paying the ransom money by a target.

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In the majority of the instances, Win32/Kryptik.GJEK virus will certainly advise its targets to start funds transfer for the function of neutralizing the amendments that the Trojan infection has introduced to the victim’s device.

Win32/Kryptik.GJEK Summary

These adjustments 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.;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • Unconventionial language used in binary resources: Estonian;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Detects Sandboxie through the presence of a library;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • A system process is generating network traffic likely as a result of process injection;
  • 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 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.
  • Checks the presence of disk drives in the registry, possibly for anti-virtualization;
  • Creates a copy of itself;
  • Ciphering the papers situated on the sufferer’s hard disk drive — so the victim can no longer use the information;
  • Preventing regular accessibility to the sufferer’s workstation;

Win32/Kryptik.GJEK

One of the most typical channels where Win32/Kryptik.GJEK Ransomware Trojans are infused are:

  • By methods of phishing emails;
  • As a repercussion of individual ending up on a resource that holds a malicious software application;

As quickly as the Trojan is effectively infused, it will either cipher the data on the sufferer’s PC or prevent the device from operating in a correct way – while additionally putting a ransom money note that mentions the requirement for the victims to effect the payment for the function of decrypting the files or recovering the documents system back to the initial condition. In many circumstances, the ransom money note will turn up when the customer reboots the COMPUTER after the system has currently been damaged.

Win32/Kryptik.GJEK circulation channels.

In various corners of the globe, Win32/Kryptik.GJEK expands by leaps as well as bounds. Nonetheless, the ransom notes as well as techniques of extorting the ransom money amount might vary relying on particular local (regional) settings. The ransom money notes as well as methods of obtaining the ransom money amount may vary depending on specific local (regional) setups.

Ransomware injection

As an example:

    Faulty notifies about unlicensed software application.

    In particular areas, the Trojans usually wrongfully report having actually spotted some unlicensed applications enabled on the victim’s tool. The alert then demands the customer to pay the ransom money.

    Faulty declarations concerning illegal content.

    In nations where software piracy is much less preferred, this method is not as reliable for the cyber scams. Additionally, the Win32/Kryptik.GJEK popup alert might incorrectly declare to be deriving from a law enforcement establishment as well as will certainly report having situated kid porn or other prohibited information on the device.

    Win32/Kryptik.GJEK popup alert might falsely assert to be deriving from a law enforcement organization and also will report having situated youngster porn or various other prohibited information on the gadget. The alert will similarly contain a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: 7CA274D7
md5: 9967e137239e998b3ec8800d7d8953ad
name: 9967E137239E998B3EC8800D7D8953AD.mlw
sha1: 61c3a8001fa66bc9a71327a14ba826f407425274
sha256: 886f974fb805401321541ea89fc48504dbaf52186c79b853b387bd200400d35a
sha512: 7bd6c0922c01faa7372edfd0acedb60750d37b877036ecdd6a207803504bf55d0df8e5c643b4f270440ecc3544f18674c27d22f7f7b72334765874d16d9d0ab1
ssdeep: 6144:cHsBSPvLOoEBOoKBePniXW7BdoQrC7v5ye:cMBSNEBTOePnim7Bd9
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2017, nosyebup
InternalName: tatira.exe
FileVersion: 3.7.9
ProductVersion: 3.7.9
Translation: 0x0809 0x04b0

Win32/Kryptik.GJEK also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0053305e1 )
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Panda.13495
Cynet Malicious (score: 100)
CAT-QuickHeal Trojan.Chapak.ZZ6
ALYac Trojan.Ransom.GandCrab
Cylance Unsafe
Zillya Trojan.GenericKD.Win32.131359
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Trojan:Win32/Kryptik.b2003574
K7GW Trojan ( 0053305e1 )
Cybereason malicious.7239e9
Cyren W32/GandCrab.C.gen!Eldorado
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GJEK
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Ransomware.Gandcrab-7101056-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.BRMon.Gen.4
NANO-Antivirus Trojan.Win32.Chapak.fhodgo
MicroWorld-eScan Trojan.BRMon.Gen.4
Tencent Win32.Trojan.Generic.Hufn
Ad-Aware Trojan.BRMon.Gen.4
Sophos Mal/Generic-S
Comodo TrojWare.Win32.TrojanDownloader.Godzilla.B@7tk49d
BitDefenderTheta Gen:NN.ZexaF.34670.qu0@aC6DaYbI
TrendMicro Ransom_GANDCRAB.SMALY-3
McAfee-GW-Edition BehavesLike.Win32.Generic.dh
FireEye Generic.mg.9967e137239e998b
Emsisoft Trojan.BRMon.Gen.4 (B)
Jiangmin Trojan.GandCrypt.hq
Avira HEUR/AGEN.1102740
Microsoft Trojan:Win32/Glupteba!ml
Arcabit Trojan.BRMon.Gen.4
GData Trojan.BRMon.Gen.4
AhnLab-V3 Win-Trojan/Gandcrab04.Exp
Acronis suspicious
McAfee Packed-FJN!9967E137239E
MAX malware (ai score=100)
VBA32 BScope.Trojan.Vigorf
Malwarebytes Trojan.MalPack
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom_GANDCRAB.SMALY-3
Rising Ransom.GandCrypt!8.F33E (CLOUD)
Ikarus Trojan.Win32.Crypt
MaxSecure Ransomeware.GandCrypt.Gen
Fortinet W32/Kryptik.GOGY!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Generic.HwoCEpsA

How to remove Win32/Kryptik.GJEK ransomware?

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.GJEK 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.GJEK 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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