Win32/Kryptik.GJDN

What is Win32/Kryptik.GJDN infection?

In this article you will find about the definition of Win32/Kryptik.GJDN and also its adverse influence on your computer. Such ransomware are a form of malware that is clarified by online frauds to require paying the ransom by a victim.

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In the majority of the situations, Win32/Kryptik.GJDN infection will certainly advise its targets to start funds transfer for the objective of counteracting the amendments that the Trojan infection has presented to the sufferer’s tool.

Win32/Kryptik.GJDN 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.
  • 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: Danish;
  • 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;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents located on the target’s hard disk — so the victim can no longer make use of the data;
  • Preventing regular accessibility to the target’s workstation;

Win32/Kryptik.GJDN

One of the most regular channels through which Win32/Kryptik.GJDN Ransomware are injected are:

  • By means of phishing emails;
  • As an effect of user ending up on a source that holds a harmful software;

As quickly as the Trojan is successfully infused, it will either cipher the information on the sufferer’s PC or stop the tool from working in a correct manner – while additionally positioning a ransom note that states the need for the victims to effect the settlement for the function of decrypting the documents or bring back the documents system back to the first condition. In a lot of instances, the ransom money note will show up when the client restarts the PC after the system has currently been harmed.

Win32/Kryptik.GJDN distribution networks.

In different corners of the world, Win32/Kryptik.GJDN grows by leaps as well as bounds. Nonetheless, the ransom notes as well as techniques of obtaining the ransom quantity might vary relying on particular local (regional) settings. The ransom notes and also methods of extorting the ransom money quantity might vary depending on certain regional (local) settings.

Ransomware injection

For instance:

    Faulty alerts about unlicensed software.

    In certain locations, the Trojans often wrongfully report having identified some unlicensed applications allowed on the sufferer’s tool. The sharp after that requires the user to pay the ransom money.

    Faulty statements concerning prohibited web content.

    In countries where software application piracy is much less prominent, this approach is not as reliable for the cyber scams. Conversely, the Win32/Kryptik.GJDN popup alert might incorrectly claim to be deriving from a law enforcement establishment and also will report having located child pornography or various other illegal data on the tool.

    Win32/Kryptik.GJDN popup alert might falsely assert to be deriving from a regulation enforcement establishment and also will certainly report having located kid porn or various other unlawful information on the gadget. The alert will similarly consist of a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: 0FA06514
md5: 5e7153dca6f6a3b4d8394ef95fa56f85
name: 5E7153DCA6F6A3B4D8394EF95FA56F85.mlw
sha1: 74545c11fc25b1ad97e6cfb9fec5ea507897446d
sha256: 73ead44a05ba7d505c8207b3f632d8753a07e4588b603f997e10ba73f08d204f
sha512: b3837bac3aef2b586ab1024343ebbab736475236768a99dd227d329125bcdf5fb1ec3385e26199f83bc632a9c687ce1e1240545a9af6ffca1ee55514384db7d5
ssdeep: 1536:ex0Ukj8wbH0WLB2vcU7uF6soZobXnLjN9Qol46CR7H5ikMZawBnFgG:9nHrgvcU7tsoZGXn/N2M+b5UZawBnFg
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.GJDN also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 00538bf91 )
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Panda.13495
Cynet Malicious (score: 100)
CAT-QuickHeal Trojan.Chapak.ZZ5
ALYac Trojan.Ransom.GandCrab
Cylance Unsafe
Zillya Trojan.GenericKD.Win32.127262
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_90% (D)
Alibaba Trojan:Any/UnSafe.a
K7GW Trojan ( 00538bf91 )
Cybereason malicious.ca6f6a
Cyren W32/Trojan.RORK-0691
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GJDN
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Ransomware.Gandcrab-9847452-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Mint.Jamg.C
NANO-Antivirus Trojan.Win32.GandCrypt.ffqyfv
ViRobot Trojan.Win32.R.Agent.163840.S
MicroWorld-eScan Trojan.Mint.Jamg.C
Tencent Win32.Trojan.Generic.Syrx
Ad-Aware Trojan.Mint.Jamg.C
Sophos Mal/Generic-S
Comodo TrojWare.Win32.Crypt.CM@7rddns
BitDefenderTheta Gen:NN.ZexaF.34670.kuW@aaQ3kwbG
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_HPGANDCRAB.SMG2
McAfee-GW-Edition BehavesLike.Win32.Generic.cc
FireEye Generic.mg.5e7153dca6f6a3b4
Emsisoft Trojan.Mint.Jamg.C (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Blocker.irh
Avira TR/GandCrab.gha
Microsoft Trojan:Win32/Emotet.DHK!MTB
Arcabit Trojan.Mint.Jamg.C
GData Trojan.Mint.Jamg.C
AhnLab-V3 Win-Trojan/Gandcrab04.Exp
Acronis suspicious
McAfee Packed-FJI!5E7153DCA6F6
MAX malware (ai score=100)
VBA32 BScope.Trojan.Fuery
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom_HPGANDCRAB.SMG2
Rising Ransom.Genasom!8.293 (C64:YzY0Olo099PRqNlh)
Yandex Trojan.GenAsa!ccNrO1pfPwE
Ikarus Trojan.Win32.Krypt
MaxSecure Ransomeware.CRAB.gen
Fortinet W32/GenKryptik.CNAR!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Backdoor.Emotet.HgIASOMA

How to remove Win32/Kryptik.GJDN ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

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.

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.GJDN 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.GJDN 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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