Win32/Kryptik.DWCR

What is Win32/Kryptik.DWCR infection?

In this article you will certainly find concerning the definition of Win32/Kryptik.DWCR as well as its adverse influence on your computer system. Such ransomware are a form of malware that is specified by on-line scams to demand paying the ransom money by a victim.

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Most of the instances, Win32/Kryptik.DWCR infection will certainly instruct its targets to start funds move for the objective of counteracting the modifications that the Trojan infection has actually presented to the victim’s gadget.

Win32/Kryptik.DWCR Summary

These alterations 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.
  • 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 (Macau);
  • Uses Windows utilities for basic functionality;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Attempts to delete volume shadow copies;
  • Deletes its original binary from disk;
  • 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
  • Exhibits possible ransomware file modification behavior;
  • Writes a potential ransom message to disk;
  • Attempts to identify installed AV products by registry key;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • 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 files found on the target’s hard disk drive — so the target can no longer make use of the data;
  • Preventing regular accessibility to the victim’s workstation;

Win32/Kryptik.DWCR

One of the most normal networks whereby Win32/Kryptik.DWCR Ransomware are injected are:

  • By methods of phishing emails;
  • As an effect of user winding up on a resource that hosts a harmful software;

As soon as the Trojan is effectively infused, it will certainly either cipher the information on the sufferer’s computer or stop the tool from functioning in a proper fashion – while additionally positioning a ransom note that discusses the need for the victims to impact the payment for the function of decrypting the documents or recovering the documents system back to the initial condition. In the majority of instances, the ransom note will certainly turn up when the customer restarts the PC after the system has already been damaged.

Win32/Kryptik.DWCR circulation networks.

In different edges of the world, Win32/Kryptik.DWCR grows by leaps and also bounds. Nonetheless, the ransom notes as well as methods of extorting the ransom quantity might vary depending upon specific neighborhood (local) setups. The ransom notes and also tricks of extorting the ransom amount might vary depending on specific local (local) setups.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software program.

    In particular locations, the Trojans typically wrongfully report having actually identified some unlicensed applications made it possible for on the sufferer’s gadget. The sharp after that demands the user to pay the ransom money.

    Faulty declarations about illegal content.

    In nations where software application piracy is less popular, this technique is not as efficient for the cyber scams. Alternatively, the Win32/Kryptik.DWCR popup alert might wrongly declare to be originating from a law enforcement organization and will report having located youngster porn or other prohibited information on the device.

    Win32/Kryptik.DWCR popup alert might wrongly assert to be acquiring from a legislation enforcement organization as well as will report having located kid porn or various other illegal data on the gadget. The alert will in a similar way contain a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: C010C259
md5: 5dc09af1611205550b6a385cbae0c330
name: 5DC09AF1611205550B6A385CBAE0C330.mlw
sha1: 84493358a8402389a0c9e6bfd0866dc225d9b03d
sha256: 95de4a72ca8bc89fcd9ec20eeab765d7250de9b538bd039cd70b82a2088348a8
sha512: c98d9f592aca552c82cea0329572c6527d9e5782d57e4b0305f180071c61726309713eb3b7ca7ef80352408e59a4c1bdccc4c8de613db3a67b9e410579053438
ssdeep: 6144:PBa6C5aNsrKEwmfMtAkDhy0GCLFg/M5yVwC2amWyPNjx:4NaN2KEhMe+7GmFg/M9CXmjlF
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Belated xa9 2080
InternalName: Waterresistant
FileVersion: 47, 107, 173, 142
CompanyName: GentleSecurity S.a.r.l.
ProductName: Texas Tutored
FileDescription: Stations
OriginalFilename: Toiled.exe

Win32/Kryptik.DWCR also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 0055dd191 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.1881
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.TeslaCrypt.WR4
ALYac Gen:Heur.Ransom.REntS.Gen.1
Cylance Unsafe
Zillya Trojan.Kryptik.Win32.921959
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Trojan:Win32/Yakes.f8aadb18
K7GW Trojan ( 0055dd191 )
Cybereason malicious.161120
Symantec Trojan.Gen
ESET-NOD32 a variant of Win32/Kryptik.DWCR
APEX Malicious
Avast Win32:TeslaCrypt-EE [Trj]
Kaspersky Trojan.Win32.Yakes.nvdn
BitDefender Gen:Heur.Ransom.REntS.Gen.1
NANO-Antivirus Trojan.Win32.AD.dwtddw
SUPERAntiSpyware Trojan.Agent/Gen-Dropper
MicroWorld-eScan Gen:Heur.Ransom.REntS.Gen.1
Tencent Malware.Win32.Gencirc.114c7b1d
Ad-Aware Gen:Heur.Ransom.REntS.Gen.1
Sophos Mal/Generic-S
BitDefenderTheta Gen:NN.ZexaF.34628.tq3@aGc8Qigd
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_FRS.0NA103BL20
McAfee-GW-Edition Artemis!Trojan
FireEye Generic.mg.5dc09af161120555
Emsisoft Gen:Heur.Ransom.REntS.Gen.1 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Yakes.bgd
Webroot Trojan.Dropper.Gen
Avira TR/AD.Cryptowall.Y.27
eGambit Generic.Malware
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft Ransom:Win32/Tescrypt.C
Arcabit Trojan.Ransom.REntS.Gen.1
AegisLab Trojan.Win32.Yakes.4!c
GData Gen:Heur.Ransom.REntS.Gen.1
AhnLab-V3 Trojan/Win32.CryptoWall.C975469
Acronis suspicious
McAfee Artemis!5DC09AF16112
MAX malware (ai score=99)
VBA32 BScope.Trojan.Yakes
Panda Generic Suspicious
TrendMicro-HouseCall TROJ_FRS.0NA103BL20
Rising Ransom.Tescrypt!8.3AF (CLOUD)
Ikarus Trojan.Win32.Crypt
Fortinet W32/Kryptik.EFAD!tr
AVG Win32:TeslaCrypt-EE [Trj]
Qihoo-360 Win32/Ransom.Tescrypt.HxQBEpsA

How to remove Win32/Kryptik.DWCR 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.DWCR 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.DWCR 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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