Win32/Kryptik.GKXO

Written by Robert Bailey

What is Win32/Kryptik.GKXO infection?

In this article you will discover concerning the meaning of Win32/Kryptik.GKXO and also its adverse impact on your computer. Such ransomware are a form of malware that is elaborated by online frauds to require paying the ransom money by a sufferer.

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Most of the cases, Win32/Kryptik.GKXO infection will certainly instruct its sufferers to initiate funds move for the objective of counteracting the modifications that the Trojan infection has actually presented to the victim’s gadget.

Win32/Kryptik.GKXO Summary

These alterations 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.
  • Unconventionial language used in binary resources: Turkish;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • 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!
  • Exhibits possible ransomware file modification behavior;
  • 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.
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files situated on the sufferer’s hard disk drive — so the victim can no longer utilize the data;
  • Preventing routine 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.GKXO

One of the most typical networks whereby Win32/Kryptik.GKXO are infused are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a consequence of user ending up on a source that holds a destructive software;

As soon as the Trojan is effectively infused, it will certainly either cipher the data on the sufferer’s computer or stop the tool from functioning in an appropriate way – while likewise positioning a ransom money note that discusses the requirement for the victims to impact the settlement for the function of decrypting the papers or bring back the documents system back to the preliminary problem. In a lot of circumstances, the ransom money note will certainly turn up when the customer reboots the PC after the system has already been harmed.

Win32/Kryptik.GKXO distribution channels.

In numerous corners of the globe, Win32/Kryptik.GKXO expands by jumps and also bounds. Nonetheless, the ransom money notes and also methods of extorting the ransom money amount may vary depending upon particular local (regional) setups. The ransom notes as well as tricks of extorting the ransom quantity might differ depending on particular regional (local) settings.

Ransomware injection

As an example:

    Faulty alerts about unlicensed software.

    In certain areas, the Trojans typically wrongfully report having detected some unlicensed applications enabled on the sufferer’s tool. The alert after that demands the user to pay the ransom.

    Faulty statements concerning prohibited content.

    In nations where software application piracy is less preferred, this approach is not as efficient for the cyber fraudulences. Conversely, the Win32/Kryptik.GKXO popup alert may falsely declare to be stemming from a law enforcement institution and also will report having located kid pornography or other unlawful data on the tool.

    Win32/Kryptik.GKXO popup alert might falsely assert to be obtaining from a legislation enforcement establishment and also will certainly report having located kid porn or other illegal data on the gadget. The alert will in a similar way consist of a requirement for the customer to pay the ransom.

Technical details

File Info:

crc32: E622CACA
md5: 37cac2cc22d0073c061da155ed447a3f
name: 37CAC2CC22D0073C061DA155ED447A3F.mlw
sha1: da49e62cb31582433abb120b55827a6f84526466
sha256: 915d74015e090411f039911bbf765b753ae02e9364ed0d03fc2b7f884b7778c1
sha512: aec22f2af5714d484999fd86d22f18b69e75e8ea240f756a97e1ecba75a6b4cd849a3ca426b42b91029d2e8a9ed7c929cfc33f28353854638de2fbf3a827770d
ssdeep: 3072:4A4dj7o0FeUBJmnTh/LEqkYxC1eVjXUWTnbZTRuulTBNV/:4A4dfo0FdBARLEqTxBVjXZ9TR/fH
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.GKXO also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 00516fdf1 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.25976
Cynet Malicious (score: 100)
ALYac Trojan.Ransom.GandCrab
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Trojan:Win32/GandCrypt.0536cd81
K7GW Trojan ( 00516fdf1 )
Cybereason malicious.c22d00
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GKXO
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Malware.Propagate-9848056-0
Kaspersky Trojan-Ransom.Win32.GandCrypt.fhq
BitDefender Trojan.Brsecmon.1
NANO-Antivirus Trojan.Win32.GandCrypt.fiakeo
MicroWorld-eScan Trojan.Brsecmon.1
Tencent Malware.Win32.Gencirc.114d4ec7
Ad-Aware Trojan.Brsecmon.1
Sophos Mal/Generic-R + Mal/Kryptik-CQ
Comodo Malware@#bbwn6su4ixd7
BitDefenderTheta Gen:NN.ZexaF.34678.luW@aOJZQ0cO
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_GANDCRAB.THOIBFAH
McAfee-GW-Edition BehavesLike.Win32.Generic.ch
FireEye Generic.mg.37cac2cc22d0073c
Emsisoft Trojan.Brsecmon.1 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Banker.NeutrinoPOS.fs
Avira HEUR/AGEN.1121586
Microsoft Trojan:Win32/IcedId.PVS!MTB
AegisLab Trojan.Win32.GandCrypt.4!c
GData Trojan.Brsecmon.1
AhnLab-V3 Trojan/Win32.Gandcrab.R245434
Acronis suspicious
McAfee Trojan-FPYT!37CAC2CC22D0
MAX malware (ai score=100)
Malwarebytes Trojan.MalPack
Panda Trj/RansomCrypt.L
TrendMicro-HouseCall Ransom_GANDCRAB.THOIBFAH
Rising Downloader.Vigorf!8.F626 (C64:YzY0Onz/nW2KnwFO)
Yandex Trojan.GenAsa!dZH2JRTNL8w
Ikarus Trojan.Crypt
Fortinet W32/GenKryptik.CNAR!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/TrojanPSW.IcedID.HwoCEpsA

How to remove Win32/Kryptik.GKXO 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.GKXO 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.GKXO 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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