Win32/Kryptik.GKKZ

Written by Robert Bailey

What is Win32/Kryptik.GKKZ infection?

In this article you will certainly find concerning the interpretation of Win32/Kryptik.GKKZ and its negative impact on your computer system. Such ransomware are a type of malware that is clarified by on the internet frauds to demand paying the ransom by a sufferer.

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In the majority of the cases, Win32/Kryptik.GKKZ infection will certainly advise its victims to start funds transfer for the objective of counteracting the amendments that the Trojan infection has presented to the victim’s tool.

Win32/Kryptik.GKKZ Summary

These adjustments can be as follows:

  • 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.

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Attempts to delete volume shadow copies;
  • 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
  • Creates a copy of itself;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the records located on the target’s hard drive — so the target can no longer utilize the information;
  • Preventing regular accessibility to the target’s workstation;

Win32/Kryptik.GKKZ

The most normal channels where Win32/Kryptik.GKKZ Trojans are injected are:

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

As soon as the Trojan is effectively infused, it will certainly either cipher the data on the sufferer’s computer or stop the device from functioning in a correct fashion – while likewise placing a ransom money note that discusses the need for the sufferers to impact the settlement for the objective of decrypting the documents or restoring the documents system back to the preliminary condition. In a lot of instances, the ransom note will come up when the client reboots the PC after the system has already been harmed.

Win32/Kryptik.GKKZ distribution channels.

In different corners of the globe, Win32/Kryptik.GKKZ expands by jumps and bounds. Nevertheless, the ransom notes and also methods of extorting the ransom money quantity may differ relying on particular neighborhood (local) settings. The ransom money notes and methods of obtaining the ransom quantity might differ depending on specific neighborhood (local) setups.

Ransomware injection

For instance:

    Faulty signals regarding unlicensed software program.

    In particular locations, the Trojans often wrongfully report having actually discovered some unlicensed applications enabled on the target’s tool. The alert after that requires the user to pay the ransom money.

    Faulty statements regarding unlawful content.

    In countries where software piracy is much less prominent, this technique is not as reliable for the cyber scams. Additionally, the Win32/Kryptik.GKKZ popup alert might falsely claim to be deriving from a law enforcement institution as well as will report having located child porn or various other illegal data on the tool.

    Win32/Kryptik.GKKZ popup alert might wrongly assert to be acquiring from a regulation enforcement establishment as well as will report having situated kid pornography or other prohibited data on the device. The alert will in a similar way have a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: 4BA30573
md5: ffe22994bd07dc6c6b87bccd3342208b
name: FFE22994BD07DC6C6B87BCCD3342208B.mlw
sha1: 76abfe7c2ceefa3dff7380eee44d65cfd47088f3
sha256: 0e3fe66e7b1180a9d02e74adbfcf894ca72496193c8f5a770afbadd558f63501
sha512: 5f5eea37fe3eaff25111d734cdaa01cfc3765db8fb1859109ae377a3351510540c427fa905968929d7a629ed48272c20b8084d7ae38542af96af7174d2962dd6
ssdeep: 12288:DmMrE41AyHcLcKY5AU7cV+ZkOyqpNJ7n3HcBTFqNUdF1zP+xjYDAiqKAJk+3lchI:diMJk+UkDiGIYXP090+Y
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Bandisoft xa9. All rights reserved.
InternalName: Gables
FileVersion: 2.4.6.526
CompanyName: Bandisoft
FileDescription: Backward Lifestyle Feel
LegalTrademarks: Bandisoft xa9. All rights reserved.
ProductName: Gables
ProductVersion: 2.4.6.526
PrivateBuild: 2.4.6.526
Translation: 0x0409 0x04b0

Win32/Kryptik.GKKZ also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 0053bee91 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.3953
MicroWorld-eScan Trojan.GenericKD.31195698
McAfee Artemis!FFE22994BD07
Cylance Unsafe
Zillya Trojan.Encoder.Win32.263
Sangfor Trojan.Win32.GenericKD.31195698
CrowdStrike win/malicious_confidence_60% (W)
Alibaba Ransom:Win32/generic.ali2000010
K7GW Trojan ( 0053bee91 )
Cybereason malicious.4bd07d
Symantec Trojan Horse
ESET-NOD32 a variant of Win32/Kryptik.GKKZ
APEX Malicious
Avast Win32:Malware-gen
Cynet Malicious (score: 100)
Kaspersky Trojan-Ransom.Win32.Encoder.ld
BitDefender Trojan.GenericKD.31195698
NANO-Antivirus Trojan.Win32.Encoder.fhoakc
ViRobot Trojan.Win32.S.Ransom.557568
Tencent Win32.Trojan.Encoder.Ejew
Ad-Aware Trojan.GenericKD.31195698
Sophos Mal/Generic-S
Comodo Malware@#xhblqyfb17kb
BitDefenderTheta Gen:NN.ZexaF.34678.Iq0@aKBBrKni
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Dropper.hh
FireEye Generic.mg.ffe22994bd07dc6c
Emsisoft Trojan.GenericKD.31195698 (B)
Jiangmin Trojan.Encoder.bq
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1124874
eGambit Unsafe.AI_Score_97%
Microsoft Trojan:Win32/Occamy.C
GData Trojan.GenericKD.31195698
TACHYON Ransom/W32.Encoder.557568
AhnLab-V3 Malware/Win32.Generic.C2731431
VBA32 BScope.Backdoor.Androm
MAX malware (ai score=99)
Panda Trj/GdSda.A
Rising Ransom.Encoder!8.FFD4 (CLOUD)
Ikarus Trojan-Ransom.GandCrab
Fortinet W32/GenKryptik.CKGB!tr.ransom
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Encoder.HgIASRMA

How to remove Win32/Kryptik.GKKZ 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.GKKZ 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

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