Win32/Kryptik.DWUO

What is Win32/Kryptik.DWUO infection?

In this article you will locate about the definition of Win32/Kryptik.DWUO and its unfavorable influence on your computer. Such ransomware are a kind of malware that is clarified by on-line frauds to demand paying the ransom by a sufferer.

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Most of the situations, Win32/Kryptik.DWUO infection will certainly instruct its victims to launch funds move for the function of neutralizing the modifications that the Trojan infection has presented to the victim’s tool.

Win32/Kryptik.DWUO Summary

These modifications can be as follows:

  • Injection (inter-process);
  • 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 with CreateRemoteThread in a remote process;
  • Mimics the system’s user agent string for its own requests;
  • 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.
  • 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.
  • Uses Windows utilities for basic functionality;
  • Attempts to delete volume shadow copies;
  • Attempts to stop active services;
  • Modifies boot configuration settings;
  • 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.
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • Attempts to disable System Restore. System Restore function – allows you to revert the computer’s state (system files, applications, and system settings) to that of a previous point in time, which can be used to recover after a virus attack.
  • 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 target’s hard disk drive — so the victim can no more utilize the information;
  • 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.DWUO

The most common channels whereby Win32/Kryptik.DWUO Trojans are infused are:

  • By methods of phishing emails;
  • As an effect of user ending up on a source that hosts a malicious software program;

As soon as the Trojan is efficiently infused, it will certainly either cipher the information on the target’s computer or avoid the tool from operating in a correct fashion – while also putting a ransom money note that mentions the requirement for the victims to effect the repayment for the purpose of decrypting the documents or recovering the documents system back to the first condition. In many instances, the ransom note will turn up when the client reboots the PC after the system has actually already been damaged.

Win32/Kryptik.DWUO circulation networks.

In various edges of the world, Win32/Kryptik.DWUO expands by jumps and bounds. However, the ransom notes and tricks of obtaining the ransom money quantity may differ depending upon specific local (regional) settings. The ransom notes as well as techniques of extorting the ransom money amount may vary depending on certain local (local) settings.

Ransomware injection

As an example:

    Faulty informs about unlicensed software.

    In certain locations, the Trojans typically wrongfully report having actually detected some unlicensed applications allowed on the sufferer’s gadget. The alert after that requires the customer to pay the ransom money.

    Faulty statements concerning illegal material.

    In countries where software piracy is less preferred, this approach is not as efficient for the cyber scams. Conversely, the Win32/Kryptik.DWUO popup alert may falsely assert to be originating from a police organization as well as will certainly report having situated youngster pornography or other unlawful data on the tool.

    Win32/Kryptik.DWUO popup alert might incorrectly assert to be deriving from a legislation enforcement establishment as well as will report having located youngster pornography or other illegal information on the tool. The alert will in a similar way contain a need for the customer to pay the ransom money.

Technical details

File Info:

crc32: 39241488
md5: 0aea809da938c9d6becc272c8cc28981
name: 0AEA809DA938C9D6BECC272C8CC28981.mlw
sha1: fa4c0407ce36766ddfc679015db60153ddcaba28
sha256: 06b553969da1ab2dcf03fd2b7a02b684b03894915cf4db8af898b0ce0a7d17f1
sha512: ad3f78ffbc03e3314ebb5a664243537f9fe51c8bfff1026bd707b194dfe98f8ab05e35993043539b50b31f23f38052c2b3b3c05c3f70d5cbe2875e1100636de2
ssdeep: 3072:U641qOxyKDvlgHYk4MUcM7cAPuKrX0JkQ5vDHpyPBk/S2XVe:U641qksT4MpA2K4J35LWk3le
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

CompanyName: ertudxzesryhj
Translation: 0x0409 0x04e4

Win32/Kryptik.DWUO also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.Common.1C5FD791
K7AntiVirus Trojan ( 0055dd191 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.514
Cynet Malicious (score: 100)
CAT-QuickHeal Trojan.Crowti.100379
ALYac MemScan:Trojan.Ransom.AKE
Cylance Unsafe
Zillya Trojan.Cryptodef.Win32.1414
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Ransom:Win32/Crowti.f2aed388
K7GW Trojan ( 0055dd191 )
Cybereason malicious.da938c
Symantec Ransom.CryptoWall!gm
ESET-NOD32 a variant of Win32/Kryptik.DWUO
APEX Malicious
Avast FileRepMalware
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender MemScan:Trojan.Ransom.AKE
NANO-Antivirus Trojan.Win32.Cryptodef.dwxbtv
SUPERAntiSpyware Trojan.Agent/Gen-Dropper
MicroWorld-eScan MemScan:Trojan.Ransom.AKE
Tencent Win32.Trojan.Inject.Auto
Ad-Aware MemScan:Trojan.Ransom.AKE
Sophos Mal/Generic-S
Comodo TrojWare.Win32.Ransom.Crowti.RJI@5wjggh
BitDefenderTheta Gen:NN.ZexaF.34670.iy0@aeLJmkpi
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_CRYPTWALL.CPH159E
McAfee-GW-Edition BehavesLike.Win32.BrowseFox.ch
FireEye Generic.mg.0aea809da938c9d6
Emsisoft MemScan:Trojan.Ransom.AKE (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Cryptodef.p
Webroot W32.Malware.Gen
Avira HEUR/AGEN.1121542
eGambit Generic.Malware
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Ransom:Win32/Crowti.A
Arcabit Trojan.Ransom.AKE
GData MemScan:Trojan.Ransom.AKE
AhnLab-V3 Trojan/Win32.CryptoWall.C979882
McAfee Gamarue-FDB!0AEA809DA938
MAX malware (ai score=100)
VBA32 Hoax.Cryptodef
Panda Trj/Genetic.gen
TrendMicro-HouseCall TROJ_CRYPTWALL.CPH159E
Rising Ransom.Crowti!8.37D (CLOUD)
Ikarus Trojan.Win32.Crypt
Fortinet W32/Kryptik.EDEE!tr
AVG FileRepMalware
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Cryptodef.HwoCEpsA

How to remove Win32/Kryptik.DWUO virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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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.DWUO 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.DWUO 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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