Win32/Kryptik.GJRD

What is Win32/Kryptik.GJRD infection?

In this post you will certainly find about the meaning of Win32/Kryptik.GJRD and its negative impact on your computer. Such ransomware are a form of malware that is specified by on the internet frauds to demand paying the ransom by a sufferer.

GridinSoft Anti-Malware Review

GridinSoft Anti-Malware

Removing computer viruses manually may take hours and may damage your PC in the process. I recommend you to download GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
6-day trial available for threats removal.
EULA | Privacy Policy | GridinSoft

In the majority of the situations, Win32/Kryptik.GJRD virus will instruct its targets to launch funds move for the function of counteracting the changes that the Trojan infection has actually presented to the target’s tool.

Win32/Kryptik.GJRD 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.
  • A process created a hidden window;
  • Unconventionial language used in binary resources: Czech;
  • Uses Windows utilities for basic functionality;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Attempts to identify installed AV products by registry key;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files found on the sufferer’s hard disk — so the target can no longer use the data;
  • Preventing regular accessibility to the victim’s workstation;

Win32/Kryptik.GJRD

One of the most normal channels where Win32/Kryptik.GJRD Ransomware Trojans are injected are:

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

As soon as the Trojan is effectively infused, it will either cipher the information on the victim’s computer or stop the tool from working in a proper manner – while additionally positioning a ransom note that mentions the requirement for the sufferers to impact the payment for the function of decrypting the papers or restoring the documents system back to the first problem. In many instances, the ransom note will certainly show up when the client reboots the COMPUTER after the system has already been harmed.

Win32/Kryptik.GJRD distribution networks.

In numerous edges of the world, Win32/Kryptik.GJRD expands by leaps and also bounds. However, the ransom notes and also tricks of extorting the ransom money quantity might vary depending upon particular local (regional) setups. The ransom money notes as well as methods of obtaining the ransom amount might vary depending on particular regional (regional) setups.

Ransomware injection

As an example:

    Faulty alerts about unlicensed software application.

    In certain locations, the Trojans often wrongfully report having spotted some unlicensed applications made it possible for on the target’s tool. The alert then requires the individual to pay the ransom.

    Faulty declarations about illegal content.

    In countries where software application piracy is much less prominent, this approach is not as efficient for the cyber scams. Additionally, the Win32/Kryptik.GJRD popup alert may wrongly claim to be originating from a law enforcement institution and will report having located kid porn or other prohibited information on the device.

    Win32/Kryptik.GJRD popup alert might wrongly assert to be obtaining from a legislation enforcement establishment and also will report having situated child pornography or various other unlawful data on the device. The alert will similarly consist of a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: 64B9E376
md5: 7aae7b40ed97c8054dc6b97b74b897dc
name: 7AAE7B40ED97C8054DC6B97B74B897DC.mlw
sha1: e7233f4f2c4f716fefd2945d642510d6876eb53c
sha256: 7d0093ba25a32b1619f23a865ed813c37cbebcbc566cf6336d2ec85e262c643f
sha512: e0353bd4068849cc2cb35d3abdfd65055481e61b7edb6c58c401b7280ec00ca0c998775acf7136a30238432857cd43a96f54b6773f02d4aae85b4cd655980419
ssdeep: 3072:86PzlWMGQC2mCeKpXQ46mDO7gaPvz5Qr+pUwdKIfz6D2tjBA6NyXP96w8R/:86PzggxQ41DQgaHzSEd7fz6Ajwf96w
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

InternalName: sgfnghmj.exe
FileVersion: 8.4.3.12

Win32/Kryptik.GJRD also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0053d5971 )
Elastic malicious (high confidence)
DrWeb Trojan.Siggen7.56435
Cynet Malicious (score: 100)
ALYac Gen:Variant.Ransom.GandCrab.1903
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_80% (D)
Alibaba Trojan:Win32/Bunitu.ali1000105
K7GW Trojan ( 0053d5971 )
Cybereason malicious.0ed97c
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GJRD
APEX Malicious
Avast FileRepMalware
Kaspersky Trojan.Win32.Chapak.anoi
BitDefender Gen:Variant.Ransom.GandCrab.1903
NANO-Antivirus Trojan.Win32.Kryptik.fgphun
MicroWorld-eScan Gen:Variant.Ransom.GandCrab.1903
Tencent Win32.Trojan.Chapak.Akfu
Ad-Aware Gen:Variant.Ransom.GandCrab.1903
Sophos Mal/Generic-S + Mal/GandCrab-G
Comodo Malware@#ewksp1cti9k1
BitDefenderTheta Gen:NN.ZexaF.34608.nu0@ayv6sEaG
VIPRE Trojan.Win32.Generic!BT
TrendMicro Mal_HPGen-50
McAfee-GW-Edition BehavesLike.Win32.Generic.dh
FireEye Generic.mg.7aae7b40ed97c805
Emsisoft Gen:Variant.Ransom.GandCrab.1903 (B)
SentinelOne Static AI – Suspicious PE
Avira HEUR/AGEN.1103322
eGambit Unsafe.AI_Score_99%
Microsoft Ransom:Win32/GandCrab.AT!bit
AegisLab Trojan.Win32.Chapak.4!c
GData Gen:Variant.Ransom.GandCrab.1903
AhnLab-V3 Win-Trojan/MalPe34.Suspicious.X2029
Acronis suspicious
McAfee Packed-FKN!7AAE7B40ED97
MAX malware (ai score=100)
VBA32 Trojan.Chapak
Malwarebytes Trojan.Agent
Panda Trj/GdSda.A
TrendMicro-HouseCall Mal_HPGen-50
Rising Malware.Obscure/Heur!1.9E03 (CLOUD)
Ikarus Trojan-Downloader.Win32.Zurgop
MaxSecure Ransomeware.CRAB.gen
Fortinet W32/Kryptik.GKJF!tr
AVG FileRepMalware
Paloalto generic.ml
Qihoo-360 Win32/Trojan.333

How to remove Win32/Kryptik.GJRD virus?

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.GJRD 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.GJRD you can always ask me in the comments for getting help.

Sending
User Review
0 (0 votes)
Comments Rating 0 (0 reviews)

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.

Leave a Reply

Sending

This site uses Akismet to reduce spam. Learn how your comment data is processed.