Win32/Kryptik.GMFA

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

What is Win32/Kryptik.GMFA infection?

In this short article you will certainly locate concerning the interpretation of Win32/Kryptik.GMFA and also its negative effect on your computer system. Such ransomware are a kind of malware that is specified by online frauds to require paying the ransom money by a sufferer.

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Most of the instances, Win32/Kryptik.GMFA virus will certainly instruct its victims to initiate funds move for the function of counteracting the changes that the Trojan infection has actually introduced to the target’s tool.

Win32/Kryptik.GMFA Summary

These modifications 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.
  • 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;
  • Appends a known encryptJJS ransomware file extension to files that have been encrypted;
  • Ciphering the records situated on the sufferer’s hard disk — so the victim can no longer make use of the information;
  • Preventing normal accessibility to the sufferer’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.GMFA

The most common networks where Win32/Kryptik.GMFA are infused are:

  • By means of phishing e-mails;
  • As an effect of individual winding up on a source that holds a harmful software application;

As quickly as the Trojan is successfully infused, it will certainly either cipher the data on the target’s PC or prevent the gadget from operating in an appropriate manner – while also positioning a ransom money note that mentions the need for the sufferers to impact the repayment for the purpose of decrypting the papers or restoring the file system back to the preliminary problem. In most circumstances, the ransom note will come up when the client restarts the COMPUTER after the system has actually already been harmed.

Win32/Kryptik.GMFA distribution networks.

In different edges of the globe, Win32/Kryptik.GMFA grows by leaps and also bounds. However, the ransom money notes and methods of extorting the ransom money amount might vary depending upon particular local (local) settings. The ransom notes as well as methods of extorting the ransom quantity may differ depending on particular neighborhood (regional) setups.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software program.

    In certain locations, the Trojans typically wrongfully report having actually found some unlicensed applications allowed on the target’s gadget. The alert then requires the user to pay the ransom money.

    Faulty declarations regarding illegal web content.

    In countries where software program piracy is much less preferred, this technique is not as reliable for the cyber fraudulences. Conversely, the Win32/Kryptik.GMFA popup alert may incorrectly declare to be originating from a law enforcement organization and also will certainly report having located youngster pornography or other prohibited information on the gadget.

    Win32/Kryptik.GMFA popup alert may wrongly assert to be acquiring from a regulation enforcement organization and will certainly report having located youngster pornography or other illegal data on the device. The alert will similarly include a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: 29B18D0A
md5: 942387ef9d9d7b3b81d49d73b55ac9b1
name: 942387EF9D9D7B3B81D49D73B55AC9B1.mlw
sha1: ff7103fee1dc1ecf0b719a995d17825685ffee74
sha256: 9234356069b43bf59ae5e7af7dc28d486975b6735cfabe333cf29e3c7a836cf8
sha512: 59934d15bc95ed3a6b3a17ea9ae02619f87b0fbc4336ae4785220cd08c9b9fb08908d7633ad9196d4467a73a671b5e1dee0829d24cc2669d372b746eea2f8d41
ssdeep: 24576:3gYoUT5CF2veYQ28wrZVg4PNLrUdj0XpTW++or:QYoUT5/eoVV5
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (c) NewSoftwares.net, Inc.
InternalName: UntrustedHealthcare
CompanyName: NewSoftwares.net, Inc.
PrivateBuild: 8.2.6.1
LegalTrademarks: Copyright (c) NewSoftwares.net, Inc.
Comments: Technical Covers
ProductName: UntrustedHealthcare
Languages: English
ProductVersion: 8.2.6.1
FileDescription: Technical Covers
OriginalFilename: UntrustedHealthcare
Translation: 0x0409 0x04b0

Win32/Kryptik.GMFA also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Riskware ( 0040eff71 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.26448
Cynet Malicious (score: 100)
ALYac Trojan.Ransom.GandCrab
Cylance Unsafe
Zillya Trojan.GandCrypt.Win32.1030
Sangfor Trojan.Win32.Save.a
Alibaba Ransom:Win32/GandCrypt.32d06bb2
K7GW Riskware ( 0040eff71 )
Cybereason malicious.f9d9d7
Cyren W32/Ransom.HCOI-0323
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.GMFA
Zoner Trojan.Win32.73700
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.GandCrypt.fvk
BitDefender Gen:Variant.Ransom.GandCrab.1857
NANO-Antivirus Trojan.Win32.GandCrypt.fisnre
MicroWorld-eScan Gen:Variant.Ransom.GandCrab.1857
Tencent Win32.Trojan.Gandcrypt.Hqut
Ad-Aware Gen:Variant.Ransom.GandCrab.1857
Sophos Mal/Generic-S
Comodo Malware@#1jhj2p419t7rg
BitDefenderTheta Gen:NN.ZexaE.34678.4q0@aeyRgWfi
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_GANDCRAB.THJAIAH
McAfee-GW-Edition Artemis!Trojan
FireEye Generic.mg.942387ef9d9d7b3b
Emsisoft Gen:Variant.Ransom.GandCrab.1857 (B)
Jiangmin Trojan.GandCrypt.om
Avira TR/Crypt.XPACK.Gen
Microsoft Trojan:Win32/Occamy.C
Arcabit Trojan.Ransom.GandCrab.D741
AegisLab Trojan.Win32.GandCrypt.4!c
GData Gen:Variant.Ransom.GandCrab.1857
AhnLab-V3 Malware/Win32.Ransom_gandcrab.C2790018
McAfee Artemis!942387EF9D9D
VBA32 Trojan.Azden
Panda Trj/CI.A
TrendMicro-HouseCall Ransom_GANDCRAB.THJAIAH
Rising Ransom.GandCrypt!8.F33E (CLOUD)
Yandex Trojan.GandCrypt!o8q4NtsHLLE
Ikarus Trojan-Ransom.GandCrab
Fortinet W32/GandCrab.761A!tr.ransom
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.GandCrab.HgIASOoA

How to remove Win32/Kryptik.GMFA ransomware?

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.GMFA 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.GMFA 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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