Win32/Kryptik.GMOY

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

What is Win32/Kryptik.GMOY infection?

In this post you will certainly locate about the meaning of Win32/Kryptik.GMOY and also its negative influence on your computer system. Such ransomware are a kind of malware that is specified by on-line scams to demand paying the ransom by a target.

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In the majority of the cases, Win32/Kryptik.GMOY ransomware will advise its victims to launch funds move for the function of neutralizing the modifications that the Trojan infection has actually introduced to the sufferer’s device.

Win32/Kryptik.GMOY Summary

These adjustments can be as follows:

  • 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;
  • Uses Windows utilities for basic functionality;
  • 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;
  • Collects information about installed applications;
  • 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;
  • Harvests credentials from local FTP client softwares;
  • Harvests information related to installed instant messenger 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.
  • 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 found on the target’s hard disk — so the victim can no longer utilize 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.GMOY

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

  • By methods of phishing emails;
  • As an effect of individual ending up on a resource that hosts a destructive software program;

As quickly as the Trojan is successfully injected, it will certainly either cipher the information on the sufferer’s PC or protect against the tool from operating in a proper way – while also placing a ransom money note that mentions the requirement for the targets to impact the payment for the objective of decrypting the documents or restoring the file system back to the initial condition. In a lot of instances, the ransom money note will show up when the client restarts the PC after the system has already been damaged.

Win32/Kryptik.GMOY circulation channels.

In numerous corners of the globe, Win32/Kryptik.GMOY grows by leaps as well as bounds. Nevertheless, the ransom notes as well as methods of obtaining the ransom amount might vary depending on certain regional (local) setups. The ransom money notes as well as techniques of obtaining the ransom money quantity might vary depending on certain neighborhood (local) setups.

Ransomware injection

For instance:

    Faulty signals about unlicensed software.

    In specific locations, the Trojans often wrongfully report having discovered some unlicensed applications made it possible for on the target’s gadget. The alert then demands the individual to pay the ransom.

    Faulty statements regarding prohibited web content.

    In nations where software program piracy is less popular, this approach is not as effective for the cyber frauds. Conversely, the Win32/Kryptik.GMOY popup alert may wrongly claim to be deriving from a police organization and will certainly report having situated child pornography or other unlawful data on the device.

    Win32/Kryptik.GMOY popup alert might incorrectly assert to be deriving from a legislation enforcement establishment and also will report having located child pornography or various other unlawful information on the gadget. The alert will in a similar way include a demand for the user to pay the ransom.

Technical details

File Info:

crc32: E61B84B2
md5: 7ff8a493b02d44d1eab00391aa5e93c4
name: 7FF8A493B02D44D1EAB00391AA5E93C4.mlw
sha1: be2c1f090e586a60055236fd7adbe3b58024959b
sha256: 7cec8d7886a899db5167d12980d7dec7b0b457fb0cf8b9ebebc1de346cb99417
sha512: 4596a2f8ea0f74b8b6b599eeadaf9fb3efadb74d02b8268da51f19aac4883e7b28f1e6577d45b0e1fac495fc855e327c813a436cdd660a3a71ec25fc0278e501
ssdeep: 12288:EFkML6hyGRHppAEjjXVNyyMJXJF6A3R7SIp:zMLqzRHpppi1J5cShv
type: PE32 executable (GUI) Intel 80386 system file, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2017, bczisadz
FileVersion: 1.3.5
ProductVersion: 1.0.4.11

Win32/Kryptik.GMOY also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 00543e471 )
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Siggen2.8271
Cynet Malicious (score: 100)
ALYac Trojan.Brsecmon.1
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Trojan:Win32/GandCrab.b42486ce
K7GW Trojan ( 00543e471 )
Cybereason malicious.3b02d4
Cyren W32/Kryptik.ND.gen!Eldorado
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GMOY
APEX Malicious
Avast Win32:MalwareX-gen [Trj]
ClamAV Win.Packed.Azorult-7596348-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Brsecmon.1
NANO-Antivirus Trojan.Win32.Yakes.fketsz
MicroWorld-eScan Trojan.Brsecmon.1
Tencent Win32.Trojan.Yakes.Aoaa
Ad-Aware Trojan.Brsecmon.1
Sophos ML/PE-A + Mal/GandCrab-G
Comodo TrojWare.Win32.Ransom.Gandcrab.GC@7zlhhh
F-Secure Heuristic.HEUR/AGEN.1107206
BitDefenderTheta Gen:NN.ZexaF.34608.Ju0@aSYCSkpi
TrendMicro Trojan.Win32.SODINOK.SM.hp
McAfee-GW-Edition Trojan-FPST!7FF8A493B02D
FireEye Generic.mg.7ff8a493b02d44d1
Emsisoft Trojan.Brsecmon.1 (B)
Avira HEUR/AGEN.1107206
Microsoft Trojan:Win32/GandCrab.GD!MTB
Arcabit Trojan.Brsecmon.1
AegisLab Trojan.Win32.Generic.mmvM
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Brsecmon.1
AhnLab-V3 Trojan/Win32.Gandcrab.C2823344
McAfee Trojan-FPST!7FF8A493B02D
MAX malware (ai score=100)
VBA32 BScope.Trojan.Vigorf
Malwarebytes Trojan.MalPack.GS
Panda Trj/GdSda.A
TrendMicro-HouseCall Trojan.Win32.SODINOK.SM.hp
Yandex Trojan.GenAsa!O/zLcdCqWME
Ikarus Trojan-Ransom.GandCrab
Fortinet W32/Kryptik.GNAQ!tr
AVG Win32:MalwareX-gen [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Generic.HgIASOsA

How to remove Win32/Kryptik.GMOY 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.GMOY 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.GMOY 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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