Win32/Kryptik.GOXR

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Win32/Kryptik.GOXR infection?

In this post you will find regarding the interpretation of Win32/Kryptik.GOXR and also its unfavorable influence on your computer. Such ransomware are a kind of malware that is elaborated by on-line scams to require paying the ransom money by a target.

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Most of the situations, Win32/Kryptik.GOXR virus will certainly advise its victims to start funds move for the purpose of neutralizing the modifications that the Trojan infection has presented to the victim’s device.

Win32/Kryptik.GOXR 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.
  • Presents an Authenticode digital signature;
  • 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.

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • 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
  • Collects information about installed applications;
  • 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.
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers situated on the sufferer’s hard disk drive — so the target can no longer use the information;
  • Preventing routine access 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.GOXR

The most common channels where Win32/Kryptik.GOXR Trojans are infused are:

  • By ways of phishing emails;
  • As a repercussion of user ending up on a resource that hosts a destructive software program;

As soon as the Trojan is effectively injected, it will either cipher the information on the sufferer’s computer or prevent the tool from working in a correct fashion – while likewise putting a ransom note that mentions the need for the victims to impact the payment for the purpose of decrypting the records or recovering the data system back to the preliminary problem. In many circumstances, the ransom money note will certainly show up when the customer restarts the COMPUTER after the system has actually already been damaged.

Win32/Kryptik.GOXR distribution networks.

In numerous edges of the globe, Win32/Kryptik.GOXR grows by jumps as well as bounds. Nonetheless, the ransom notes as well as techniques of extorting the ransom amount may vary depending on particular neighborhood (regional) settings. The ransom money notes and tricks of extorting the ransom money amount might differ depending on certain neighborhood (local) settings.

Ransomware injection

As an example:

    Faulty notifies concerning unlicensed software program.

    In specific locations, the Trojans frequently wrongfully report having discovered some unlicensed applications made it possible for on the victim’s device. The sharp after that requires the customer to pay the ransom.

    Faulty statements regarding illegal material.

    In countries where software application piracy is much less preferred, this technique is not as efficient for the cyber scams. Alternatively, the Win32/Kryptik.GOXR popup alert may falsely declare to be stemming from a police institution and also will report having situated youngster pornography or various other prohibited information on the tool.

    Win32/Kryptik.GOXR popup alert may falsely assert to be acquiring from a legislation enforcement establishment and also will certainly report having situated kid pornography or various other illegal data on the gadget. The alert will likewise contain a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: 7CF390EA
md5: 10f054ec7a4b1c93b25696c6c075cb4d
name: ssj.jpg
sha1: e53c96eab3a3987bdbd629944fb80f22095671a5
sha256: fb142143b7efdbb03e23a1c366208ffa4cba9131e674fb196e6611f7f76f7c8e
sha512: 9656f708100bfa98f276260a0d9340dbd0299aa127c01857553d08bac20ed717a0e5031eaa48c84b1aebea0d43e500c296242e89811f39f6edb627948fd9f9b9
ssdeep: 24576:t4N7MW5XdyJzJhJwvLdoV8J7QWaJbS5luKUGhzqTxf:tLW5AJheDdoVcZKbMluhG2f
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

FileVersion: 51.1052.0.0
FileDescription: setip/Unikstall
Translation: 0x0000 0x04b0

Win32/Kryptik.GOXR also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKDZ.53616
FireEye Generic.mg.10f054ec7a4b1c93
CAT-QuickHeal Trojan.Mauvaise.SL1
McAfee Trojan-FQSD!10F054EC7A4B
Cylance Unsafe
Zillya Trojan.Shade.Win32.979
Sangfor Malware
K7AntiVirus Trojan ( 0056708b1 )
BitDefender Trojan.GenericKDZ.53616
K7GW Trojan ( 0056708b1 )
Cybereason malicious.c7a4b1
Invincea Mal/Generic-R + Mal/Cerber-AL
BitDefenderTheta AI:Packer.C6722B2F21
Cyren W32/Emotet.SI.gen!Eldorado
Symantec Downloader
ESET-NOD32 a variant of Win32/Kryptik.GOXR
APEX Malicious
Avast Win32:RansomX-gen [Ransom]
ClamAV Win.Dropper.Shade-7365819-0
Kaspersky HEUR:Trojan.Win32.Generic
Alibaba Trojan:Win32/Emotet.158
NANO-Antivirus Trojan.Win32.Ursu.fmhuzl
ViRobot Trojan.Win32.Ransom.1222408.A
Rising Ransom.Troldesh!8.5D1 (TFE:5:Xvznc757dcS)
Ad-Aware Trojan.GenericKDZ.53616
Emsisoft Trojan.Agent (A)
Comodo TrojWare.Win32.Shade.F@8rqwur
F-Secure Heuristic.HEUR/AGEN.1112743
DrWeb Trojan.Encoder.858
VIPRE LooksLike.Win32.Reveton.c!ag (v)
TrendMicro Ransom.Win32.TROLDESH.THOABEAI
McAfee-GW-Edition Trojan-FQSD!10F054EC7A4B
Sophos Mal/Cerber-AL
SentinelOne DFI – Malicious PE
Jiangmin Trojan.Shade.pr
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1112743
MAX malware (ai score=100)
Antiy-AVL Trojan/Win32.Kryptik
Microsoft Trojan:Win32/Emotet.PB
Arcabit Trojan.Generic.DD170
AhnLab-V3 Trojan/Win32.Shade.C2952674
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Win32.Trojan-Ransom.Shade.A
Cynet Malicious (score: 100)
Acronis suspicious
ALYac Trojan.GenericKDZ.53616
VBA32 BScope.Trojan.MulDrop
Malwarebytes Ransom.Troldesh
Panda Trj/CI.A
TrendMicro-HouseCall Ransom.Win32.TROLDESH.THOABEAI
Tencent Malware.Win32.Gencirc.114d91c8
Yandex Trojan.Shade!
Ikarus Trojan-Ransom.Crypted007
eGambit PE.Heur.InvalidSig
Fortinet W32/Kryptik.GOUT!tr.ransom
AVG Win32:RansomX-gen [Ransom]
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (W)
Qihoo-360 Win32/Trojan.b0b

How to remove Win32/Kryptik.GOXR 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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The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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.GOXR 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.GOXR 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/comparison

About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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