Win32/Kryptik.GJNK

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

What is Win32/Kryptik.GJNK infection?

In this post you will certainly locate concerning the meaning of Win32/Kryptik.GJNK and also its unfavorable influence on your computer system. Such ransomware are a form of malware that is specified by on-line frauds to demand paying the ransom money by a sufferer.

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Most of the situations, Win32/Kryptik.GJNK ransomware will advise its targets to start funds transfer for the function of counteracting the changes that the Trojan infection has actually introduced to the target’s device.

Win32/Kryptik.GJNK 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.
  • Unconventionial language used in binary resources: Slovenian;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • 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.
  • Ciphering the documents situated on the victim’s disk drive — so the victim can no more make use of 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.GJNK

One of the most typical networks whereby Win32/Kryptik.GJNK 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 repercussion of customer ending up on a source that holds a malicious software application;

As soon as the Trojan is effectively infused, it will certainly either cipher the data on the sufferer’s PC or prevent the device from functioning in a correct manner – while also putting a ransom money note that points out the requirement for the targets to effect the repayment for the purpose of decrypting the records or recovering the data system back to the preliminary condition. In most instances, the ransom note will come up when the client reboots the PC after the system has actually currently been harmed.

Win32/Kryptik.GJNK distribution channels.

In different corners of the globe, Win32/Kryptik.GJNK grows by jumps and bounds. However, the ransom notes and also techniques of obtaining the ransom money amount might differ relying on certain local (regional) setups. The ransom notes and also techniques of extorting the ransom amount might vary depending on specific neighborhood (regional) settings.

Ransomware injection

For example:

    Faulty signals about unlicensed software program.

    In particular areas, the Trojans often wrongfully report having detected some unlicensed applications enabled on the sufferer’s gadget. The alert then demands the individual to pay the ransom money.

    Faulty statements about prohibited content.

    In nations where software application piracy is much less prominent, this method is not as efficient for the cyber fraudulences. Alternatively, the Win32/Kryptik.GJNK popup alert might falsely assert to be deriving from a law enforcement institution and will certainly report having located kid pornography or other illegal information on the device.

    Win32/Kryptik.GJNK popup alert may wrongly assert to be deriving from a regulation enforcement institution and will report having located youngster pornography or other illegal data on the gadget. The alert will in a similar way have a requirement for the customer to pay the ransom.

Technical details

File Info:

crc32: FEE01E66
md5: 807ab511ac75b49296f1cda9d584ba9c
name: 807AB511AC75B49296F1CDA9D584BA9C.mlw
sha1: d636d6dde4fe518feba76d2c2063249a388e3ae4
sha256: 7ffb50625b66b53e268c962082408ce31549ac03e6b36c23a5b08d33bcd3ba1c
sha512: 425b0331d588cb5ef1aa6bbde84bc1018dd8d13c72abcca19c39099edf31a0120566802df01e81b6eb269e8097c64529b58a732fd32620f5e2c36b0e9cc105be
ssdeep: 3072:ioyws3i5cpBLVd2i+t2t1nHHuaT4awwCwuq:tyvN7MtUxeaYwP
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

FileVersion: 3.7.9

Win32/Kryptik.GJNK 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 Trojan.Chapak.ZZ6
ALYac Gen:Variant.Fugrafa.5376
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Trojan:Win32/Kryptik.d8ce5ee7
K7GW Trojan ( 00516fdf1 )
Cybereason malicious.1ac75b
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GJNK
APEX Malicious
Avast Win32:Trojan-gen
ClamAV Win.Ransomware.Gandcrab-7340174-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Fugrafa.5376
NANO-Antivirus Trojan.Win32.Stealer.fhpyir
SUPERAntiSpyware Ransom.GandCrab/Variant
MicroWorld-eScan Gen:Variant.Fugrafa.5376
Tencent Win32.Trojan.Generic.Dygg
Ad-Aware Gen:Variant.Fugrafa.5376
Sophos ML/PE-A + Mal/GandCrab-G
Comodo TrojWare.Win32.PSW.Coins.FS@7s47lc
BitDefenderTheta Gen:NN.ZexaF.34628.ku0@amfbtFlQ
TrendMicro Ransom_GANDCRAB.SMALY-3
McAfee-GW-Edition BehavesLike.Win32.Emotet.ch
FireEye Generic.mg.807ab511ac75b492
Emsisoft Gen:Variant.Fugrafa.5376 (B)
Jiangmin Trojan.PSW.Coins.aml
Avira HEUR/AGEN.1102756
eGambit Unsafe.AI_Score_92%
Microsoft Trojan:Win32/Occamy.C
AegisLab Trojan.Win32.Coins.i!c
GData Gen:Variant.Fugrafa.5376
AhnLab-V3 Win-Trojan/Gandcrab04.Exp
Acronis suspicious
McAfee Packed-FJN!807AB511AC75
MAX malware (ai score=80)
VBA32 BScope.Trojan.Vigorf
Malwarebytes Trojan.MalPack
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom_GANDCRAB.SMALY-3
Rising Trojan.Vigorf!8.EAEA (CLOUD)
Yandex Trojan.GenAsa!NBUrmqOjfhc
SentinelOne Static AI – Suspicious PE
Fortinet W32/Kryptik.HCUD!tr
AVG Win32:Trojan-gen
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Generic.HwoCUFcA

How to remove Win32/Kryptik.GJNK 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.GJNK 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.GJNK 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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