Win32/Kryptik.DYUJ

What is Win32/Kryptik.DYUJ infection?

In this short article you will discover concerning the meaning of Win32/Kryptik.DYUJ and its unfavorable effect on your computer. Such ransomware are a form of malware that is specified by online scams to require paying the ransom money by a victim.

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Most of the situations, Win32/Kryptik.DYUJ ransomware will advise its sufferers to launch funds transfer for the objective of counteracting the amendments that the Trojan infection has introduced to the sufferer’s device.

Win32/Kryptik.DYUJ 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.
  • 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.
  • Checks for the presence of known windows from debuggers and forensic tools;
  • 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.
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Creates a copy of itself;
  • Ciphering the documents situated on the sufferer’s hard drive — so the victim 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.

Win32/Kryptik.DYUJ

The most regular networks whereby Win32/Kryptik.DYUJ Trojans are injected are:

  • By ways of phishing emails;
  • As a consequence of user winding up on a source that holds a malicious software program;

As soon as the Trojan is effectively injected, it will certainly either cipher the information on the sufferer’s computer or stop the device from operating in a correct fashion – while also putting a ransom note that states the need for the targets to effect the repayment for the function of decrypting the documents or bring back the documents system back to the preliminary problem. In the majority of circumstances, the ransom note will certainly turn up when the customer restarts the COMPUTER after the system has already been harmed.

Win32/Kryptik.DYUJ circulation networks.

In numerous corners of the globe, Win32/Kryptik.DYUJ grows by leaps and also bounds. Nonetheless, the ransom notes as well as methods of obtaining the ransom money amount might vary depending on certain neighborhood (local) settings. The ransom notes as well as tricks of obtaining the ransom quantity may differ depending on particular regional (regional) setups.

Ransomware injection

For instance:

    Faulty signals concerning unlicensed software program.

    In certain locations, the Trojans typically wrongfully report having discovered some unlicensed applications made it possible for on the sufferer’s device. The alert then requires the user to pay the ransom.

    Faulty statements about unlawful web content.

    In nations where software program piracy is less prominent, this technique is not as efficient for the cyber scams. Alternatively, the Win32/Kryptik.DYUJ popup alert might wrongly declare to be deriving from a law enforcement establishment and also will report having situated child pornography or other illegal information on the gadget.

    Win32/Kryptik.DYUJ popup alert might incorrectly claim to be acquiring from a law enforcement establishment and will report having located kid porn or other prohibited data on the tool. The alert will likewise have a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: B0B85138
md5: 026804df2a4ac9e70ef80c52e2261333
name: 026804DF2A4AC9E70EF80C52E2261333.mlw
sha1: 6a19e78a24f9895226b1f00cd594a8dc9e8e0630
sha256: 7c094fd50d83805d1dbadffc6ad15a6ff7100ed89c7a2d719ee79fbd2acd4b59
sha512: 74f03d1ee2ffae38aeaa9347782f3e495ced0d1f68e4f86643280cce4d93df91fe95e1650349bbda8f102a5a70b4ed26ef4a79f4d25acdf5276cc83486dac67d
ssdeep: 24576:dTL4I96laPDm5ad9faF2h4csivFFHspWu7UEmn0nwN0E8:dTL4IsK6ad9faosivFF+uveX
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: (C)www.sopcast.com
InternalName: 09
FileVersion: 5.5.43.1
CompanyName: www.sopcast.com
FileDescription: Cognitive Maintenance Cincidence Faa
LegalTrademarks: (C)www.sopcast.com
ProductName: 09
ProductVersion: 5.5.43.1
PrivateBuild: 5.5.43.1
OriginalFilename: 09
Translation: 0x0409 0x04b0

Win32/Kryptik.DYUJ also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 0053ed621 )
DrWeb Trojan.Encoder.858
Cynet Malicious (score: 99)
ALYac Trojan.Ransom.Shade
Cylance Unsafe
Zillya Trojan.Shade.Win32.821
Sangfor Trojan.Win32.GenericKD.3
CrowdStrike win/malicious_confidence_60% (D)
Alibaba Ransom:Win32/Shade.057275b0
K7GW Trojan ( 0053ed621 )
Cybereason malicious.f2a4ac
Symantec Ransom.Troldesh
ESET-NOD32 a variant of Win32/Kryptik.DYUJ
APEX Malicious
Avast Win32:Trojan-gen
Kaspersky Trojan-Ransom.Win32.Shade.oww
BitDefender Trojan.Ransom.Shade.B
NANO-Antivirus Trojan.Win32.Shade.fjdivd
MicroWorld-eScan Trojan.Ransom.Shade.B
Tencent Win32.Trojan.Shade.Dbc
Ad-Aware Trojan.Ransom.Shade.B
Comodo Malware@#2gru45m1ogl38
BitDefenderTheta Gen:NN.ZexaF.34686.rr0@aeEoLEpi
VIPRE Trojan.Win32.Generic!BT
TrendMicro Possible_HPGen-38
McAfee-GW-Edition Artemis!Trojan
FireEye Generic.mg.026804df2a4ac9e7
Emsisoft Trojan.Ransom.Shade.B (B)
Jiangmin Trojan.Shade.us
Webroot W32.Malware.Gen
Avira HEUR/AGEN.1109237
eGambit Unsafe.AI_Score_55%
Microsoft Trojan:Win32/Occamy.B
AegisLab Trojan.Win32.Shade.tqS4
GData Trojan.Ransom.Shade.B
AhnLab-V3 Malware/Win32.Possible_hpgen.C2756318
McAfee Artemis!026804DF2A4A
VBA32 TrojanRansom.Shade
Malwarebytes MachineLearning/Anomalous.95%
Panda Trj/CI.A
TrendMicro-HouseCall Possible_HPGen-38
Rising Ransom.Shade!8.12CC (CLOUD)
Yandex Trojan.Shade!xrt7qUGeuHw
Ikarus Trojan.Win32.Krypt
Fortinet W32/GenKryptik.CNVS!tr.ransom
AVG Win32:Trojan-gen
Paloalto generic.ml

How to remove Win32/Kryptik.DYUJ 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.DYUJ 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.DYUJ 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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