Win32/Kryptik.EWIW

Written by Robert Bailey

What is Win32/Kryptik.EWIW infection?

In this article you will certainly locate about the meaning of Win32/Kryptik.EWIW and its adverse influence on your computer system. Such ransomware are a form of malware that is specified by online fraudulences to require paying the ransom by a target.

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Most of the situations, Win32/Kryptik.EWIW infection will certainly advise its victims to launch funds transfer for the objective of reducing the effects of the modifications that the Trojan infection has presented to the victim’s device.

Win32/Kryptik.EWIW 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.
  • Enumerates user accounts on the system;
  • 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.;
  • A process created a hidden window;
  • 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 an excessive number of UDP connection attempts to external IP addresses;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • Attempts to delete volume shadow copies;
  • Deletes its original binary from disk;
  • Modifies boot configuration settings;
  • Exhibits behavior characteristic of Cerber ransomware;
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • Mimics the file times of a Windows system file;
  • 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.
  • EternalBlue behavior. Allows cyber threat actors to remotely execute arbitrary code and gain access to a network by sending specially crafted packets.

    This is has made EternalBlue trick popular with various malware, such as Trickbot, a modular banking trojan, as well as CoinMiner and WannaMine, crypto miners that use the EternalBlue exploit in order to gain access to computing power to mine cryptocurrencies.

  • Checks the version of Bios, possibly for anti-virtualization;
  • Creates a copy of itself;
  • Generates some ICMP traffic;
  • 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 papers located on the victim’s disk drive — so the victim can no longer make use of the information;
  • Preventing routine access to the sufferer’s workstation;

Win32/Kryptik.EWIW

The most normal networks through which Win32/Kryptik.EWIW Ransomware are infused are:

  • By ways of phishing e-mails;
  • As a consequence of individual winding up on a resource that organizes a harmful software;

As soon as the Trojan is successfully injected, it will certainly either cipher the information on the sufferer’s computer or protect against the device from operating in a proper way – while additionally placing a ransom note that discusses the demand for the victims to impact the payment for the objective of decrypting the files or bring back the documents system back to the first condition. In most instances, the ransom note will certainly show up when the client restarts the COMPUTER after the system has actually currently been damaged.

Win32/Kryptik.EWIW distribution networks.

In different corners of the globe, Win32/Kryptik.EWIW grows by jumps and also bounds. However, the ransom money notes as well as tricks of extorting the ransom quantity might vary depending upon certain regional (regional) settings. The ransom money notes and tricks of extorting the ransom quantity might differ depending on specific regional (regional) settings.

Ransomware injection

For instance:

    Faulty alerts about unlicensed software application.

    In certain areas, the Trojans usually wrongfully report having discovered some unlicensed applications allowed on the target’s device. The sharp then demands the user to pay the ransom.

    Faulty statements regarding unlawful web content.

    In countries where software program piracy is much less preferred, this technique is not as reliable for the cyber frauds. Conversely, the Win32/Kryptik.EWIW popup alert might incorrectly assert to be stemming from a law enforcement organization as well as will certainly report having situated kid porn or other illegal data on the gadget.

    Win32/Kryptik.EWIW popup alert may wrongly claim to be deriving from a legislation enforcement institution and also will certainly report having located child porn or other illegal data on the tool. The alert will in a similar way contain a demand for the individual to pay the ransom.

Technical details

File Info:

crc32: 6A06428B
md5: 56b3a568e620af798ca0ffb9cf0547c7
name: 56B3A568E620AF798CA0FFB9CF0547C7.mlw
sha1: fd55545f48891391b0d8a907e23486f2f21016c3
sha256: 482db5eedaaea165c8f31c2b638218b9d9ec56d53dd8de1344e29035cb62058d
sha512: 0ef63e60e6c849fe725929fa13bdc3bb6f33d4da19306b7cbc6b680feebfc8c58964ec7de9fefacf93b31013c34a182520d49aa21d37a1f3338fbc5f50945e03
ssdeep: 3072:Ak9T6rMIXSbxA/n2YF/qyA1qnTKnf6UhAJCoE5jsiGn5o:Ak6MIXS6+Yopnf2JClj6n5
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (c) 1999-2011 Igor Pavlov
InternalName: 7zg
FileDescription: 7-Zip GUI
FileVersion: 9.23 alpha
CompanyName: Ig or Pavlov
Translation: 0x0409 0x04b0

Win32/Kryptik.EWIW also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.4395
ClamAV Win.Ransomware.Tinba-9844531-0
CAT-QuickHeal Ransom.Crowti.G4
McAfee Ransomware-GCQ!56B3A568E620
Cylance Unsafe
Zillya Trojan.Deshacop.Win32.642
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_80% (D)
Alibaba Ransom:Win32/Cerber.a2a247b9
K7GW Trojan ( 005224381 )
K7AntiVirus Trojan ( 005224381 )
Baidu Win32.Trojan.FileCoder.a
Cyren W32/Cerber.C.gen!Eldorado
Symantec Packed.Generic.459
ESET-NOD32 a variant of Win32/Kryptik.EWIW
APEX Malicious
Avast Win32:Malware-gen
Cynet Malicious (score: 100)
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Ransom.Cerber.1
NANO-Antivirus Trojan.Win32.Encoder.eczdzc
MicroWorld-eScan Trojan.Ransom.Cerber.1
Ad-Aware Trojan.Ransom.Cerber.1
Sophos ML/PE-A + Mal/Tinba-T
Comodo TrojWare.Win32.Kryptik.ERJ@6l0vie
BitDefenderTheta Gen:NN.ZexaF.34688.pq0@aKzyiXci
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CERBER.CBQ1654
FireEye Generic.mg.56b3a568e620af79
Emsisoft Trojan.Ransom.Cerber.1 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Selfdel.bta
Webroot Trojan.Dropper.Gen
Avira HEUR/AGEN.1140560
Microsoft Ransom:Win32/Cerber.A
AegisLab Trojan.Win32.SelfDel.4!c
GData Trojan.Ransom.Cerber.1
TACHYON Trojan/W32.Deshacop.253952.D
AhnLab-V3 Trojan/Win32.Agent.R180434
Acronis suspicious
VBA32 BScope.Trojan.Menti
MAX malware (ai score=100)
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom_CERBER.CBQ1654
Tencent Malware.Win32.Gencirc.10c11a17
Ikarus Trojan.Win32.Filecoder
Fortinet W32/Qbot.CQ!tr
AVG Win32:Malware-gen
Paloalto generic.ml

How to remove Win32/Kryptik.EWIW 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.EWIW 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.EWIW 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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