Win32/Kryptik.GWLW

Written by Robert Bailey

What is Win32/Kryptik.GWLW infection?

In this short article you will discover concerning the interpretation of Win32/Kryptik.GWLW and also its unfavorable effect on your computer system. Such ransomware are a kind of malware that is specified by on the internet frauds to require paying the ransom money by a victim.

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Most of the cases, Win32/Kryptik.GWLW ransomware will certainly instruct its victims to launch funds transfer for the purpose of reducing the effects of the amendments that the Trojan infection has actually presented to the target’s gadget.

Win32/Kryptik.GWLW 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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.
  • 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.
  • Executed a process and injected code into it, probably while unpacking;
  • 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;
  • Ciphering the documents situated on the victim’s hard disk drive — so the target can no longer use the data;
  • Preventing normal accessibility to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.
Similar behavior
Related domains
z.whorecord.xyz Trojan.Ransom.Shade
a.tomx.xyz Trojan.Ransom.Shade

Win32/Kryptik.GWLW

One of the most normal networks where Win32/Kryptik.GWLW Ransomware are injected are:

  • By methods of phishing emails;
  • As a consequence of customer ending up on a source that organizes a harmful software program;

As soon as the Trojan is effectively infused, it will either cipher the information on the victim’s PC or avoid the device from working in a correct manner – while additionally positioning a ransom note that mentions the requirement for the victims to impact the repayment for the function of decrypting the papers or recovering the data system back to the first condition. In the majority of circumstances, the ransom money note will certainly show up when the client restarts the PC after the system has currently been harmed.

Win32/Kryptik.GWLW circulation channels.

In various corners of the world, Win32/Kryptik.GWLW expands by leaps as well as bounds. Nevertheless, the ransom notes and techniques of obtaining the ransom money quantity might vary relying on specific neighborhood (local) setups. The ransom notes and methods of obtaining the ransom quantity might differ depending on certain regional (regional) setups.

Ransomware injection

As an example:

    Faulty notifies regarding unlicensed software program.

    In certain areas, the Trojans frequently wrongfully report having discovered some unlicensed applications made it possible for on the target’s gadget. The sharp then requires the individual to pay the ransom.

    Faulty declarations about unlawful material.

    In nations where software application piracy is less preferred, this method is not as efficient for the cyber fraudulences. Conversely, the Win32/Kryptik.GWLW popup alert may falsely declare to be originating from a police establishment and will report having located youngster porn or various other illegal information on the gadget.

    Win32/Kryptik.GWLW popup alert may incorrectly declare to be acquiring from a law enforcement organization and also will report having situated kid pornography or other unlawful data on the tool. The alert will likewise include a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: 28AC40D6
md5: a891a7d7f909f4fb979551e627aadbc5
name: 2c.jpg
sha1: 62e11882f0bd65361ba4466fbc5ddcd2c6087be7
sha256: 0d90acdb6730a3ef7f7fe61db16d19a6bc58db18e87661c620842fcab0021d88
sha512: a1db1dda73f5defdf819b1f65c3324fa70bd60c80855c13c919c70b6b99e27f49572202370b152b6fa884f715bbaf24e5c58f3b84fb0e9550f33c58b78ed4989
ssdeep: 49152:XCnVtvZw4JkcMTupKvxh4k3/76BDjoIJTJDZ1bCFk:XCnVtB3Sh4k3/76PZk
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: AudioVkontakte.ru 2006-2014 (c)
InternalName: ReceivingLingual
FileVersion: 5.6.85.7
CompanyName: AudioVkontakte.ru
PrivateBuild: 5.6.85.7
LegalTrademarks: AudioVkontakte.ru 2006-2014 (c)
Comments: Unifies Mvp Motherboard Endless Pins Sand
ProductName: ReceivingLingual
Languages: English
ProductVersion: 5.6.85.7
FileDescription: Unifies Mvp Motherboard Endless Pins Sand
OriginalFilename: ReceivingLingual.exe
Translation: 0x0409 0x04b0

Win32/Kryptik.GWLW also known as:

GridinSoft Trojan.Ransom.Gen
MicroWorld-eScan Trojan.GenericKD.41758323
FireEye Trojan.GenericKD.41758323
CAT-QuickHeal Trojan.Multi
McAfee Artemis!A891A7D7F909
ALYac Trojan.Ransom.Shade
VIPRE Trojan.Win32.Generic!BT
K7AntiVirus Riskware ( 0040eff71 )
BitDefender Trojan.GenericKD.41758323
K7GW Riskware ( 0040eff71 )
Invincea heuristic
Symantec Trojan.Gen.2
APEX Malicious
Avast Win32:Malware-gen
GData Trojan.GenericKD.41758323
Kaspersky Trojan-Ransom.Win32.Foreign.oiji
Alibaba Ransom:Win32/Foreign.986fa684
NANO-Antivirus Trojan.Win32.Kryptik.gabwyh
AegisLab Trojan.Win32.Foreign.j!c
Rising Trojan.Generic@ML.82 (RDML:wk4Aox3ZOSf5eoQ0WVX3fg)
Sophos Troj/Ransom-FQN
F-Secure Trojan.TR/AD.Troldesh.fdxlt
DrWeb Trojan.Encoder.858
Zillya Trojan.Kryptik.Win32.1730929
TrendMicro Possible_HPGen-38
McAfee-GW-Edition BehavesLike.Win32.Dropper.vc
Emsisoft Trojan.GenericKD.41758323 (B)
Ikarus Trojan.Win32.Krypt
Cyren W32/Trojan.BHLV-8343
Jiangmin Trojan.Foreign.gcg
Avira TR/AD.Troldesh.fdxlt
MAX malware (ai score=99)
Antiy-AVL Trojan[Ransom]/Win32.Foreign
ZoneAlarm Trojan-Ransom.Win32.Foreign.oiji
Microsoft Trojan:Win32/Occamy.C
AhnLab-V3 Trojan/Win32.Foreign.C3472965
Acronis suspicious
VBA32 BScope.TrojanPSW.IBank.1161
Ad-Aware Trojan.GenericKD.41758323
Malwarebytes Ransom.Troldesh
Panda Trj/CI.A
ESET-NOD32 a variant of Win32/Kryptik.GWLW
TrendMicro-HouseCall Possible_HPGen-38
Tencent Win32.Trojan.Foreign.Lnxp
Fortinet W32/Kryptik.GVSM!tr
AVG Win32:Malware-gen
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (W)
Qihoo-360 Win32/Trojan.Ransom.b17

How to remove Win32/Kryptik.GWLW 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

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.GWLW 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.GWLW 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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