Win32/Kryptik.DWIH

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Win32/Kryptik.DWIH infection?

In this article you will locate about the definition of Win32/Kryptik.DWIH and also its adverse impact on your computer system. Such ransomware are a form of malware that is elaborated by on-line frauds to require paying the ransom money by a victim.

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In the majority of the cases, Win32/Kryptik.DWIH virus will certainly advise its targets to start funds move for the purpose of neutralizing the modifications that the Trojan infection has actually introduced to the victim’s device.

Win32/Kryptik.DWIH 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.
  • Compression (or decompression);
  • 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.

  • 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.
  • Unconventionial language used in binary resources: Chinese (Singapore);
  • Uses Windows utilities for basic functionality;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Attempts to delete volume shadow copies;
  • Exhibits behavior characteristic of Alphacrypt/Teslacrypt ransomware;
  • Network activity contains more than one unique useragent.;
  • 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
  • Writes a potential ransom message to disk;
  • Attempts to identify installed AV products by registry key;
  • Creates a copy of itself;
  • Creates a known TeslaCrypt/AlphaCrypt ransomware decryption instruction / key file.;
  • 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 documents found on the sufferer’s disk drive — so the victim can no longer make use of the information;
  • Preventing routine access 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.

Win32/Kryptik.DWIH

One of the most regular channels where Win32/Kryptik.DWIH are injected are:

  • By means of phishing e-mails;
  • As a consequence of user ending up on a source that holds a malicious software program;

As quickly as the Trojan is effectively infused, it will either cipher the data on the target’s PC or prevent the device from functioning in a correct way – while additionally positioning a ransom note that points out the demand for the victims to effect the payment for the function of decrypting the documents or bring back the data system back to the preliminary condition. In the majority of circumstances, the ransom note will come up when the client restarts the PC after the system has actually already been harmed.

Win32/Kryptik.DWIH circulation channels.

In numerous edges of the globe, Win32/Kryptik.DWIH grows by jumps as well as bounds. However, the ransom notes and techniques of extorting the ransom money amount might vary relying on specific neighborhood (regional) settings. The ransom notes and techniques of extorting the ransom money amount might vary depending on certain local (local) settings.

Ransomware injection

For instance:

    Faulty signals concerning unlicensed software program.

    In certain areas, the Trojans often wrongfully report having actually spotted some unlicensed applications allowed on the victim’s gadget. The sharp after that requires the user to pay the ransom.

    Faulty statements regarding prohibited material.

    In nations where software program piracy is less popular, this technique is not as effective for the cyber frauds. Additionally, the Win32/Kryptik.DWIH popup alert might incorrectly claim to be originating from a police organization as well as will report having located child porn or various other prohibited information on the gadget.

    Win32/Kryptik.DWIH popup alert may falsely assert to be acquiring from a law enforcement institution and will report having located child porn or other unlawful data on the gadget. The alert will in a similar way consist of a demand for the user to pay the ransom.

Technical details

File Info:

crc32: 4C49198F
md5: 1fa938fa964b58fc77164faea2c49af6
name: 1FA938FA964B58FC77164FAEA2C49AF6.mlw
sha1: 35e8ecec5ee04e7e5dcbb6c625bd019325c3d6e5
sha256: 3d6f9f819450e813b2d00a4660f3fee387eb50df389ec8f28bbcd7651a0e56bd
sha512: 28712c8cdb7b62d92576bdc02cc2c1a435589d8dacdb2272fc649e398c394190de9c663061327d9078cebe068ba3f6e76e26307e31806f768cfc6f6378686b95
ssdeep: 6144:6ND5kJBOyt9Y5OFSiu1Xvqj7Onafe8ru1divydzi6vn:m5N1yu1yj7QaGT1dX5n
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Tiny xa9 2014
InternalName: Turner
FileVersion: 195, 54, 246, 180
CompanyName: Mattel Inc.
ProductName: Visual Blade
FileDescription: Archivist
OriginalFilename: Ached.exe

Win32/Kryptik.DWIH also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware2
K7AntiVirusTrojan ( 0055dd191 )
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.2255
CynetMalicious (score: 100)
CAT-QuickHealRansom.TeslaCrypt.WR4
CylanceUnsafe
ZillyaTrojan.Yakes.Win32.47315
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
AlibabaTrojan:Win32/Yakes.e51b7a94
K7GWTrojan ( 0055dd191 )
Cybereasonmalicious.a964b5
ESET-NOD32a variant of Win32/Kryptik.DWIH
APEXMalicious
AvastWin32:Malware-gen
KasperskyTrojan.Win32.Yakes.npsh
BitDefenderTrojan.Cripack.Gen.1
NANO-AntivirusTrojan.Win32.Encoder.dxxuuz
MicroWorld-eScanTrojan.Cripack.Gen.1
TencentMalware.Win32.Gencirc.114c7b0b
Ad-AwareTrojan.Cripack.Gen.1
SophosMal/Generic-S
ComodoMalware@#3pjgie9j3rnrg
BitDefenderThetaGen:NN.ZexaF.34628.tq3@aiXrk4mH
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionBehavesLike.Win32.Rootkit.fc
FireEyeGeneric.mg.1fa938fa964b58fc
EmsisoftTrojan.Cripack.Gen.1 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Bitman.asm
WebrootW32.Gen.BT
AviraHEUR/AGEN.1116684
eGambitGeneric.Malware
MicrosoftRansom:Win32/Tescrypt.C
AegisLabTrojan.Win32.Yakes.4!c
GDataTrojan.Cripack.Gen.1
AhnLab-V3Trojan/Win32.CryptoWall.C975602
McAfeeGenericR-JPM!1FA938FA964B
MAXmalware (ai score=100)
VBA32BScope.Trojan-Ransom.Bitman
PandaTrj/Genetic.gen
RisingRansom.Tescrypt!8.3AF (CLOUD)
YandexTrojan.Kryptik!0ysIout4Jx8
IkarusTrojan.Win32.Crypt
FortinetW32/Kryptik.EFAD!tr
AVGWin32:Malware-gen
Qihoo-360Win32/Ransom.Tescrypt.HxQBEpsA

How to remove Win32/Kryptik.DWIH 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.DWIH 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.DWIH 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/comparison

About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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