Win32/Kryptik.GJUP

Written by Robert Bailey

What is Win32/Kryptik.GJUP infection?

In this article you will certainly discover concerning the interpretation of Win32/Kryptik.GJUP as well as its negative influence on your computer system. Such ransomware are a kind of malware that is specified by on-line fraudulences to require paying the ransom money by a target.

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Most of the situations, Win32/Kryptik.GJUP ransomware will certainly advise its victims to start funds move for the objective of reducing the effects of the changes that the Trojan infection has actually introduced to the sufferer’s gadget.

Win32/Kryptik.GJUP Summary

These modifications can be as adheres to:

  • 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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.
  • At least one IP Address, Domain, or File Name was found in a crypto call;
  • Starts servers listening on 127.0.0.1:32767, 127.0.0.1:32768;
  • Unconventionial language used in binary resources: Faeroese;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Queries information on disks, possibly for anti-virtualization. Since VMs share the same disk space so it is expected that they won’t be getting as much space as an application running on
    native hardware will have access to.
  • Executed a process and injected code into it, probably while unpacking;
  • Sniffs keystrokes;
  • Ciphering the records found on the victim’s disk drive — so the sufferer can no longer utilize the information;
  • Preventing routine 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.GJUP

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

  • By methods of phishing emails;
  • As an effect of individual winding up on a source that holds a destructive software application;

As quickly as the Trojan is efficiently infused, it will certainly either cipher the information on the victim’s computer or avoid the tool from functioning in an appropriate fashion – while additionally putting a ransom note that mentions the requirement for the targets to impact the repayment for the objective of decrypting the documents or bring back the data system back to the initial problem. In most instances, the ransom note will certainly show up when the client restarts the PC after the system has actually already been damaged.

Win32/Kryptik.GJUP circulation channels.

In various edges of the globe, Win32/Kryptik.GJUP grows by jumps and bounds. Nevertheless, the ransom money notes and also techniques of extorting the ransom money amount may differ relying on particular regional (regional) setups. The ransom notes and also tricks of extorting the ransom quantity might vary depending on specific neighborhood (regional) setups.

Ransomware injection

For example:

    Faulty informs concerning unlicensed software application.

    In certain areas, the Trojans typically wrongfully report having detected some unlicensed applications made it possible for on the victim’s tool. The sharp after that requires the user to pay the ransom money.

    Faulty statements about unlawful web content.

    In countries where software application piracy is less preferred, this approach is not as reliable for the cyber fraudulences. Additionally, the Win32/Kryptik.GJUP popup alert may wrongly assert to be deriving from a law enforcement institution and will report having located kid pornography or other unlawful data on the device.

    Win32/Kryptik.GJUP popup alert may wrongly assert to be obtaining from a law enforcement establishment and also will certainly report having situated youngster pornography or other illegal data on the gadget. The alert will similarly consist of a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: D7C88978
md5: 565277e383efd2c7ddb44e90cf5cd2fb
name: 565277E383EFD2C7DDB44E90CF5CD2FB.mlw
sha1: 74172d03e17dbd3f4d03f81f7ad07186583225be
sha256: 53a5078c88e8029cb22337409b492ff4933a7d2774db41dc9ec45500818474d8
sha512: 4f07cced270e6f461678a4c6d1e0f8b194c861253d2cccf19da194f8b3cd9991bd234c0bb66987fbc833ed9163d5bbfa318f9eefc3c02bdb6c7b22e7d19f2ea5
ssdeep: 12288:Yv2NfidE+D82CM98Y81TcsCiUzOtCMKOwyJMoaHTt9PfREcVr:K2NadEi8FPaStP9wyzaHTtVKcV
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

FileVersion: 8.4.3.12

Win32/Kryptik.GJUP also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0053a6921 )
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Stealer.24300
Cynet Malicious (score: 100)
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_80% (D)
Alibaba Trojan:Win32/Kryptik.f7fffdfd
K7GW Trojan ( 0053a6921 )
Cybereason malicious.3e17db
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GJUP
APEX Malicious
Avast Win32:MalwareX-gen [Trj]
ClamAV Win.Dropper.Razy-6652225-0
Kaspersky HEUR:Trojan.Win32.Generic
NANO-Antivirus Trojan.Win32.Chapak.fhsxgc
Tencent Win32.Trojan.Razy.Suxm
Sophos ML/PE-A + Mal/GandCrab-B
Comodo TrojWare.Win32.Ransom.Gandcrab.GJ@7tcda3
BitDefenderTheta Gen:NN.ZexaF.34678.Eu0@a0ocIynG
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Generic.gc
FireEye Generic.mg.565277e383efd2c7
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.GandCrypt.bo
Avira HEUR/AGEN.1134410
eGambit Unsafe.AI_Score_98%
Microsoft Trojan:Win32/Gandcrab.AF
AegisLab Trojan.Win32.Chapak.4!c
AhnLab-V3 Win-Trojan/Gandcrab07.Exp
Acronis suspicious
McAfee Packed-FKN!565277E383EF
MAX malware (ai score=100)
Malwarebytes Trojan.MalPack.GS
Panda Trj/Genetic.gen
Rising Trojan.Kryptik!8.8 (CLOUD)
Yandex Trojan.GenAsa!XbfyLesfDYA
Ikarus Trojan.Win32.Crypt
Fortinet W32/Kryptik.GJUV!tr.ransom
AVG Win32:MalwareX-gen [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Generic.HgIASOsA

How to remove Win32/Kryptik.GJUP 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.

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.GJUP 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Win32/Kryptik.GJUP 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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