Win32/Kryptik.GDXC

What is Win32/Kryptik.GDXC infection?

In this article you will discover regarding the interpretation of Win32/Kryptik.GDXC as well as its adverse effect on your computer system. Such ransomware are a form of malware that is clarified by on-line frauds to demand paying the ransom by a sufferer.

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In the majority of the instances, Win32/Kryptik.GDXC ransomware will certainly instruct its targets to initiate funds transfer for the function of neutralizing the changes that the Trojan infection has actually presented to the target’s gadget.

Win32/Kryptik.GDXC Summary

These alterations 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.
  • 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.
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • 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
  • 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 found on the victim’s disk drive — so the victim can no more utilize the information;
  • Preventing routine accessibility to the sufferer’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.GDXC

The most regular networks through which Win32/Kryptik.GDXC Ransomware are infused are:

  • By ways of phishing e-mails;
  • As a consequence of individual ending up on a resource that organizes a harmful software application;

As soon as the Trojan is effectively injected, it will certainly either cipher the data on the victim’s computer or protect against the gadget from working in a proper manner – while additionally positioning a ransom note that states the requirement for the sufferers to impact the settlement for the objective of decrypting the files or recovering the file system back to the initial problem. In most circumstances, the ransom note will certainly turn up when the customer reboots the PC after the system has currently been damaged.

Win32/Kryptik.GDXC circulation networks.

In numerous corners of the world, Win32/Kryptik.GDXC grows by jumps and also bounds. Nonetheless, the ransom money notes and also techniques of obtaining the ransom quantity may differ relying on certain regional (local) setups. The ransom money notes and also techniques of extorting the ransom money quantity may differ depending on specific local (regional) setups.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software application.

    In particular areas, the Trojans often wrongfully report having actually identified some unlicensed applications allowed on the sufferer’s gadget. The sharp after that requires the customer to pay the ransom.

    Faulty statements about illegal content.

    In nations where software application piracy is less preferred, this technique is not as reliable for the cyber scams. Conversely, the Win32/Kryptik.GDXC popup alert might falsely claim to be stemming from a police establishment and also will report having located kid porn or other prohibited information on the gadget.

    Win32/Kryptik.GDXC popup alert may incorrectly claim to be deriving from a legislation enforcement organization and also will certainly report having situated child pornography or various other illegal data on the tool. The alert will similarly include a requirement for the customer to pay the ransom.

Technical details

File Info:

crc32: 4056B105
md5: 2eda2da7455c94ce15a70643b5e7645a
name: 2EDA2DA7455C94CE15A70643B5E7645A.mlw
sha1: 480bf13629f9d2d8df6765e1b509420ed1e33920
sha256: 7f36f77f0bc78faa75c1cc6ee9c33dc7c0657acec099753cfe9d9a723389307f
sha512: ba2b4029a110d3316e1895f0677d6e821c4f326e26bea4e08af13d0206fe6f2079032be4845f88cbc6cc0d19b9a623a4e6bfcec51904d077fce9f752f6ecef35
ssdeep: 6144:/lex4JrqbE0039JPXTdeGuX7VQaM0/BjCERr7Cp:/rVqEv39FjdeNQaMIUk/6
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.GDXC also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 00532e3d1 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.29024
Cynet Malicious (score: 100)
CAT-QuickHeal Trojan.Chapak.ZZ5
ALYac Trojan.Ransom.GandCrab.Gen.2
Cylance Unsafe
Zillya Trojan.Chapak.Win32.399
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Ransom:Win32/Gandcrab.8bdbb660
K7GW Trojan ( 655333331 )
Cybereason malicious.7455c9
Cyren W32/Gandcrab.BF.gen!Eldorado
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GDXC
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Packer.Crypter-6539596-1
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Ransom.GandCrab.Gen.2
NANO-Antivirus Trojan.Win32.Sinowal.eypxyb
MicroWorld-eScan Trojan.Ransom.GandCrab.Gen.2
Tencent Malware.Win32.Gencirc.10c8addb
Ad-Aware Trojan.Ransom.GandCrab.Gen.2
Sophos Mal/Generic-R + Mal/Agent-AUL
Comodo TrojWare.Win32.Chapak.A@7jwiqv
BitDefenderTheta Gen:NN.ZexaF.34628.tuX@amjPYFfi
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom.Win32.GANDCRAB.SMLA.hp
McAfee-GW-Edition BehavesLike.Win32.Generic.fc
FireEye Generic.mg.2eda2da7455c94ce
Emsisoft Trojan.Ransom.GandCrab.Gen.2 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Backdoor.Sinowal.fe
Avira TR/Dropper.Gen
Microsoft Ransom:Win32/Gandcrab.SF!MTB
AegisLab Adware.Win32.Fiseria.lXzx
GData Trojan.Ransom.GandCrab.Gen.2
AhnLab-V3 Win-Trojan/Gandcrab02.Exp
Acronis suspicious
McAfee GenericRXEF-RV!2EDA2DA7455C
MAX malware (ai score=99)
VBA32 BScope.Trojan.Diple
Malwarebytes Trojan.MalPack.GS
Panda Trj/CI.A
TrendMicro-HouseCall Ransom.Win32.GANDCRAB.SMLA.hp
Rising Ransom.Gandcrab!8.F355 (RDMK:cmRtazqUWwiy2xFQHZTNYqBWwP3y)
Yandex Trojan.GenAsa!e5XpBrktCLw
Ikarus Trojan.Win32.Crypt
MaxSecure Ransomeware.CRAB.gen
Fortinet W32/GenKryptik.DWPH!tr
AVG Win32:Malware-gen
Qihoo-360 Win32/Trojan.08d

How to remove Win32/Kryptik.GDXC 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.

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.GDXC 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.GDXC 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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