Win32/Kryptik.GIWU

Written by Robert Bailey

What is Win32/Kryptik.GIWU infection?

In this post you will certainly locate about the definition of Win32/Kryptik.GIWU and its adverse influence on your computer system. Such ransomware are a form of malware that is elaborated by online frauds to require paying the ransom by a target.

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In the majority of the situations, Win32/Kryptik.GIWU virus will advise its targets to initiate funds move for the function of neutralizing the amendments that the Trojan infection has actually introduced to the target’s gadget.

Win32/Kryptik.GIWU 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 attempted to delay the analysis task.;
  • 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;
  • 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!
  • Steals private information from local Internet browsers;
  • Spoofs its process name and/or associated pathname to appear as a legitimate process;
  • 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.
  • Creates a copy of itself;
  • Harvests credentials from local FTP client softwares;
  • Harvests information related to installed instant messenger clients;
  • Harvests information related to installed mail clients;
  • Collects information to fingerprint the system. There are behavioral human characteristics that can be used to digitally identify a person to grant access to systems, devices, or data. Unlike passwords and verification codes, fingerprints are fundamental parts of user’s identities. Among the threats blocked on biometric data processing and storage systems is spyware, the malware used in phishing attacks (mostly spyware downloaders and droppers), ransomware, and Banking Trojans as posing the greatest danger.
  • Ciphering the files located on the target’s hard drive — so the sufferer can no more make use of the information;
  • Preventing routine accessibility 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.
Similar behavior
Related domains
beatfile.ru Gen:Variant.Ransom.Scarab.43

Win32/Kryptik.GIWU

The most typical channels whereby Win32/Kryptik.GIWU Ransomware are infused are:

  • By means of phishing emails;
  • As a consequence of individual winding up on a resource that holds a malicious software application;

As quickly as the Trojan is efficiently injected, it will either cipher the data on the target’s computer or prevent the gadget from functioning in an appropriate way – while additionally placing a ransom note that discusses the demand for the targets to effect the settlement for the objective of decrypting the papers or restoring the file system back to the initial condition. In many instances, the ransom note will certainly turn up when the client restarts the PC after the system has actually currently been damaged.

Win32/Kryptik.GIWU distribution channels.

In various edges of the world, Win32/Kryptik.GIWU expands by leaps and bounds. However, the ransom money notes and tricks of extorting the ransom quantity may vary relying on specific neighborhood (local) setups. The ransom notes and also methods of obtaining the ransom money amount might vary depending on particular neighborhood (regional) settings.

Ransomware injection

As an example:

    Faulty notifies about unlicensed software program.

    In specific areas, the Trojans commonly wrongfully report having identified some unlicensed applications enabled on the victim’s device. The sharp then requires the customer to pay the ransom.

    Faulty declarations concerning illegal content.

    In countries where software application piracy is less preferred, this technique is not as reliable for the cyber scams. Additionally, the Win32/Kryptik.GIWU popup alert may wrongly assert to be stemming from a police institution and will report having located youngster porn or various other illegal data on the device.

    Win32/Kryptik.GIWU popup alert may falsely assert to be deriving from a regulation enforcement establishment and will certainly report having located kid pornography or other prohibited data on the tool. The alert will similarly contain a demand for the individual to pay the ransom money.

Technical details

File Info:

crc32: 197986E2
md5: 72299694286501d2600173aa70a20999
name: 72299694286501D2600173AA70A20999.mlw
sha1: d0f9626a2a2cc995780d013df59c284d07d249e1
sha256: 4c4d56ae1bb7eaa72429323a5f1be700cf246d264b6feed7b5856122b7193580
sha512: 9cac3873d5a09e76e082522e1f6aae69640ce58ad834eb4cd1bfac2f0e62afb2dc173fa5be15d96d06e73745fa4c0e48d5331f45d46f17e60bfeca935d8bd0ea
ssdeep: 12288:TwlfSnlG+xvG1EdiMrn5vBBE1K3JMewaFQ7:THLxvG6T5E6z/Fy
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

LegalCopyright: Copyright xa9HEVC video encoder 2000 - 2014 KG and its Licensors
InternalName: Boden Fascinating
FileVersion: 4.6.56.422
CompanyName: HEVC video encoder
PrivateBuild: 4.6.56.422
LegalTrademarks: Copyright xa9HEVC video encoder 2000 - 2014 KG and its Licensors
Comments: Wmv D3dx10loadtexturefromtexture Printer Schamlos Trepidation
ProductName: Boden Fascinating
Languages: English
ProductVersion: 4.6.56.422
FileDescription: Wmv D3dx10loadtexturefromtexture Printer Schamlos Trepidation
OriginalFilename: Boden Fascinating
Translation: 0x0409 0x04b0

Win32/Kryptik.GIWU also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Stealer.23680
Cynet Malicious (score: 99)
ALYac Gen:Variant.Ransom.Scarab.43
Cylance Unsafe
Zillya Trojan.GenericKD.Win32.137065
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_80% (D)
Alibaba Trojan:Win32/Yakes.f1507e7d
Cybereason malicious.428650
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.GIWU
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan.Win32.Yakes.wzar
BitDefender Gen:Variant.Ransom.Scarab.43
NANO-Antivirus Trojan.Win32.Yakes.fflneh
MicroWorld-eScan Gen:Variant.Ransom.Scarab.43
Tencent Malware.Win32.Gencirc.114d4c51
Ad-Aware Gen:Variant.Ransom.Scarab.43
Sophos Mal/Generic-S
Comodo Malware@#2tcnbz7vw963v
BitDefenderTheta Gen:NN.ZexaF.34690.BmLfaqCZJHhi
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Dropper.gc
FireEye Generic.mg.72299694286501d2
Emsisoft Gen:Variant.Ransom.Scarab.43 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Yakes.aahs
Avira HEUR/AGEN.1126114
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft Trojan:Win32/Pynamer.B!rfn
Arcabit Trojan.Ransom.Scarab.43
GData Gen:Variant.Ransom.Scarab.43
McAfee Generic.dyg
MAX malware (ai score=100)
VBA32 Trojan.Yakes
Panda Trj/CI.A
Rising Trojan.Kryptik!8.8 (CLOUD)
Yandex Trojan.GenAsa!SkWb7LvZmd4
Ikarus Trojan-Spy.Remcos
Fortinet W32/Kryptik.GKDU!tr.ransom
AVG Win32:Malware-gen
Paloalto generic.ml

How to remove Win32/Kryptik.GIWU 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.GIWU 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.GIWU 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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