Win32/Kryptik.GJNH

What is Win32/Kryptik.GJNH infection?

In this article you will certainly find about the definition of Win32/Kryptik.GJNH and its adverse influence on your computer. Such ransomware are a kind of malware that is clarified by online frauds to demand paying the ransom money by a target.

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In the majority of the situations, Win32/Kryptik.GJNH infection will certainly instruct its targets to initiate funds move for the function of reducing the effects of the amendments that the Trojan infection has introduced to the victim’s tool.

Win32/Kryptik.GJNH 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.
  • Unconventionial language used in binary resources: Estonian;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • 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;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records located on the victim’s disk drive — so the victim can no longer make use of the data;
  • Preventing normal accessibility 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.GJNH

One of the most typical networks through which Win32/Kryptik.GJNH Trojans are injected are:

  • By means of phishing e-mails;
  • As a consequence of individual ending up on a source that hosts a destructive software program;

As soon as the Trojan is efficiently injected, it will certainly either cipher the information on the target’s computer or stop the tool from operating in an appropriate fashion – while also putting a ransom note that points out the need for the victims to effect the payment for the purpose of decrypting the papers or restoring the data system back to the initial problem. In most instances, the ransom money note will certainly come up when the client reboots the COMPUTER after the system has actually currently been harmed.

Win32/Kryptik.GJNH distribution channels.

In different corners of the globe, Win32/Kryptik.GJNH grows by jumps and also bounds. Nonetheless, the ransom money notes and also techniques of extorting the ransom money quantity might vary relying on certain neighborhood (regional) settings. The ransom money notes and also tricks of extorting the ransom money amount may differ depending on certain neighborhood (regional) setups.

Ransomware injection

For example:

    Faulty signals about unlicensed software.

    In specific areas, the Trojans commonly wrongfully report having identified some unlicensed applications made it possible for on the target’s device. The alert after that requires the user to pay the ransom.

    Faulty declarations about prohibited web content.

    In countries where software piracy is much less preferred, this approach is not as reliable for the cyber frauds. Alternatively, the Win32/Kryptik.GJNH popup alert may incorrectly declare to be originating from a police institution and will certainly report having located child porn or other illegal information on the tool.

    Win32/Kryptik.GJNH popup alert may incorrectly claim to be acquiring from a legislation enforcement establishment as well as will certainly report having situated kid porn or various other prohibited data on the tool. The alert will in a similar way consist of a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: DBE7CBD6
md5: 88ee7f4315ee3e52fe5416191b9074d3
name: 88EE7F4315EE3E52FE5416191B9074D3.mlw
sha1: 0de4bce1fead84ac254ca48adc7fe2bdb2c2bfe8
sha256: 887e8301af8fb9aab1de3b784eb12b654c42d52cb22605a8250d364f5c552f94
sha512: 5b97c7f823c8f55186a28a78d99f8440d2366b4658d041d7bd4b3a7a71bbb2fb044cf494c6c4437e791e78420a65b3a1a5054ce7a077ab1c078a83bc354c41b7
ssdeep: 3072:C5qqcS5adcmHck2ZEqnQyJm+uJULZXy1fZeY:/ytrJCCXy1xP
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

FileVersion: 3.7.9

Win32/Kryptik.GJNH also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 00516fdf1 )
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Stealer.24300
Cynet Malicious (score: 100)
CAT-QuickHeal Worm.Gamarue.MUE.ZZ4
McAfee Packed-FJN!88EE7F4315EE
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Ransom:Win32/GandCrypt.002002
K7GW Trojan ( 00516fdf1 )
Cybereason malicious.315ee3
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GJNH
APEX Malicious
Avast Win32:MalwareX-gen [Trj]
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Fugrafa.2161
NANO-Antivirus Trojan.Win32.Stealer.fhvdvm
ViRobot Trojan.Win32.R.Agent.172032.AF
SUPERAntiSpyware Ransom.GandCrab/Variant
MicroWorld-eScan Gen:Variant.Fugrafa.2161
Tencent Win32.Trojan.Generic.Edyc
Ad-Aware Gen:Variant.Fugrafa.2161
Sophos Mal/Generic-S + Mal/GandCrab-G
Comodo TrojWare.Win32.PSW.Coins.FS@7s47lc
BitDefenderTheta Gen:NN.ZexaF.34670.ku0@aO!qn3oO
TrendMicro Ransom_GANDCRAB.SMALY-3
McAfee-GW-Edition BehavesLike.Win32.Generic.ch
FireEye Generic.mg.88ee7f4315ee3e52
Emsisoft Gen:Variant.Fugrafa.2161 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan.Chapak.mt
Avira TR/GandCrab.idd
eGambit Unsafe.AI_Score_97%
Microsoft Trojan:Win32/Glupteba!ml
Arcabit Trojan.Fugrafa.D871
AegisLab Trojan.Win32.GandCrypt.j!c
GData Gen:Variant.Fugrafa.2161
AhnLab-V3 Win-Trojan/Gandcrab04.Exp
Acronis suspicious
VBA32 BScope.Trojan.Vigorf
MAX malware (ai score=100)
Malwarebytes Trojan.MalPack
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom_GANDCRAB.SMALY-3
Rising Ransom.GandCrypt!8.F33E (CLOUD)
Ikarus Trojan.Win32.Crypt
Fortinet W32/Kryptik.HCUD!tr
AVG Win32:MalwareX-gen [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Ransom.GandCrab.HgIASOQA

How to remove Win32/Kryptik.GJNH 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.

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Press “Install” button.

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Once installed, Anti-Malware will automatically run.

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Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Win32/Kryptik.GJNH 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.GJNH 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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