Win32/Kryptik.MWZ

Written by Robert Bailey

What is Win32/Kryptik.MWZ infection?

In this short article you will certainly locate concerning the interpretation of Win32/Kryptik.MWZ and also its adverse influence on your computer. Such ransomware are a kind of malware that is elaborated by on the internet fraudulences to require paying the ransom money by a victim.

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In the majority of the cases, Win32/Kryptik.MWZ virus will advise its targets to initiate funds transfer for the function of neutralizing the amendments that the Trojan infection has presented to the target’s tool.

Win32/Kryptik.MWZ 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.
  • 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 created a hidden window;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • The executable is compressed using UPX;
  • Uses Windows utilities for basic functionality;
  • Deletes its original binary from disk;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers found on the target’s hard drive — so the victim can no more use the information;
  • Preventing regular access to the victim’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.MWZ

One of the most common channels through which Win32/Kryptik.MWZ Ransomware Trojans are infused are:

  • By methods of phishing emails;
  • As a consequence of customer winding up on a resource that holds a malicious software;

As quickly as the Trojan is efficiently infused, it will certainly either cipher the information on the sufferer’s computer or protect against the gadget from functioning in a correct manner – while additionally putting a ransom note that points out the demand for the sufferers to impact the settlement for the function of decrypting the records or recovering the data system back to the preliminary condition. In many instances, the ransom note will certainly turn up when the customer reboots the PC after the system has actually currently been damaged.

Win32/Kryptik.MWZ distribution channels.

In numerous edges of the world, Win32/Kryptik.MWZ expands by jumps and bounds. Nonetheless, the ransom notes and techniques of extorting the ransom amount might differ depending upon specific neighborhood (regional) setups. The ransom notes and also tricks of obtaining the ransom money quantity might vary depending on certain neighborhood (local) setups.

Ransomware injection

For example:

    Faulty alerts about unlicensed software program.

    In specific areas, the Trojans frequently wrongfully report having identified some unlicensed applications allowed on the victim’s device. The sharp after that demands the user to pay the ransom money.

    Faulty declarations about illegal material.

    In nations where software piracy is much less popular, this approach is not as effective for the cyber frauds. Alternatively, the Win32/Kryptik.MWZ popup alert might incorrectly claim to be stemming from a law enforcement organization as well as will certainly report having situated child pornography or various other unlawful information on the device.

    Win32/Kryptik.MWZ popup alert might incorrectly declare to be acquiring from a law enforcement establishment and also will certainly report having located kid porn or various other unlawful information on the gadget. The alert will in a similar way have a demand for the user to pay the ransom.

Technical details

File Info:

crc32: 60B4E7E0
md5: 3e3fa042aada756367233d6d4b39562c
name: 3E3FA042AADA756367233D6D4B39562C.mlw
sha1: 733e95bb1d4b7effd5f2c3c8ca406566a188dd26
sha256: 417d014a622f3f0aef25ccf77ac7f9a0e487c0e62f95b7d8eddd84f0e6ce1ab2
sha512: e9d4fc853ca5d3056b471a367b4d1240fe2663b74c25ca032059e4ea7d853bbfb986311bd79dd4868a43c4d4e7c566da18ca7d6210efc898fbdb9f9c7f16fb47
ssdeep: 6144:LwrfkA04eb5aK1HM/hxX1UhIPOXKKpkJsHViz:L8kA04e9lG/bX1Uh/Srz
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

LegalCopyright: Copyright xa9 Nfnlqra Qsxojg 1995-2009
InternalName: Nfnlqra
FileVersion: 37, 99, 88, 4
CompanyName: Nfnlqra Qsxojg
ProductName: Nfnlqra Hkdfltlmi Pfgvdvg
ProductVersion: 37, 99, 88, 4
FileDescription: Nfnlqra Hkdfltlmi Pfgvdvg
OriginalFilename: Nfnlqra.exe
Translation: 0x0409 0x04e4

Win32/Kryptik.MWZ also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( f1000f011 )
Elastic malicious (high confidence)
DrWeb BackDoor.Siggen.28527
Cynet Malicious (score: 100)
ALYac Rootkit.48427
Cylance Unsafe
Zillya Trojan.PornoBlocker.Win32.2064
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/Obfuscator.a80b7b5a
K7GW Trojan ( f1000f011 )
Cybereason malicious.2aada7
Cyren W32/Zbot.DA.gen!Eldorado
ESET-NOD32 a variant of Win32/Kryptik.MWZ
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Rootkit.48427
NANO-Antivirus Trojan.Win32.ULPM.bkwmwk
ViRobot Trojan.Win32.A.PornoBlocker.240924[UPX]
MicroWorld-eScan Rootkit.48427
Tencent Win32.Trojan.Generic.Llhv
Ad-Aware Rootkit.48427
Sophos Mal/Generic-R + Mal/Zbot-CX
Comodo Malware@#3a4167xk7zx4r
BitDefenderTheta Gen:NN.ZexaF.34628.omLfa80YSPii
VIPRE Packed.Win32.PWSZbot.gen (v)
TrendMicro TROJ_RANSOM.JBU
McAfee-GW-Edition W32/Pinkslipbot.gen.af
FireEye Generic.mg.3e3fa042aada7563
Emsisoft Rootkit.48427 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan/PornoBlocker.dfb
Webroot Worm:Autoit/Helompy.A
Avira TR/Crypt.ULPM.Gen
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Trojan:Win32/Occamy.C
Arcabit Rootkit.DBD2B
AegisLab Trojan.Win32.PornoBlocker.j!c
GData Rootkit.48427
McAfee W32/Pinkslipbot.gen.af
MAX malware (ai score=100)
VBA32 Trojan.Zeus.EA.0999
Malwarebytes Malware.Heuristic.1003
Panda Generic Malware
TrendMicro-HouseCall TROJ_RANSOM.JBU
Rising Trojan.Tofumanics!8.2DCF (CLOUD)
Yandex Trojan.GenAsa!QioUnNZOfck
Ikarus Trojan.Win32.Yakes
Fortinet W32/Krap.A!tr
AVG Win32:Malware-gen
Qihoo-360 Win32/Rootkit.Generic.HwsBEpsA

How to remove Win32/Kryptik.MWZ 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.MWZ 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.MWZ 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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