Win32/Kryptik.GZAQ

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

What is Win32/Kryptik.GZAQ infection?

In this article you will locate regarding the interpretation of Win32/Kryptik.GZAQ and its adverse impact on your computer. Such ransomware are a form of malware that is clarified by online scams to require paying the ransom by a target.

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Most of the instances, Win32/Kryptik.GZAQ infection will advise its victims to initiate funds move for the purpose of neutralizing the amendments that the Trojan infection has introduced to the sufferer’s device.

Win32/Kryptik.GZAQ Summary

These alterations 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.
  • Compression (or decompression);
  • 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.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Attempts to stop active services;
  • 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
  • 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.
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Operates on local firewall’s policies and settings;
  • Creates a copy of itself;
  • Attempts to disable UAC.

    User Account Control or just UAC is a part of the Windows security system which prevents apps from making unwanted changes on PC.

    UAC includes several technologies 1:

    • File and egistry Virtualization;
    • Same-desktop Elevation;
    • Filtered Token;
    • User Interface Privilege Isolation;
    • Protected Mode Internet Explorer;
    • Installer Detection;
  • Attempts to disable Windows Defender;
  • Attempts to modify or disable Security Center warnings;
  • Ciphering the papers found on the target’s hard disk — so the target can no longer use the information;
  • Preventing regular accessibility to the victim’s workstation;

Win32/Kryptik.GZAQ

One of the most normal networks through which Win32/Kryptik.GZAQ Trojans are infused are:

  • By methods of phishing emails;
  • As a consequence of customer winding up on a resource that organizes a malicious software application;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the data on the target’s PC or stop the tool from working in a correct way – while likewise placing a ransom money note that points out the requirement for the targets to impact the payment for the objective of decrypting the files or bring back the data system back to the initial problem. In a lot of circumstances, the ransom note will come up when the client restarts the COMPUTER after the system has currently been harmed.

Win32/Kryptik.GZAQ distribution channels.

In different edges of the globe, Win32/Kryptik.GZAQ expands by jumps and also bounds. However, the ransom notes as well as techniques of extorting the ransom quantity may vary depending upon specific neighborhood (regional) setups. The ransom money notes and also methods of obtaining the ransom money quantity may vary depending on particular local (regional) setups.

Ransomware injection

As an example:

    Faulty informs concerning unlicensed software program.

    In specific locations, the Trojans commonly wrongfully report having found some unlicensed applications made it possible for on the sufferer’s tool. The alert after that requires the customer to pay the ransom.

    Faulty declarations about illegal material.

    In countries where software piracy is much less preferred, this approach is not as efficient for the cyber frauds. Conversely, the Win32/Kryptik.GZAQ popup alert may wrongly declare to be originating from a police institution as well as will certainly report having located child porn or other prohibited data on the gadget.

    Win32/Kryptik.GZAQ popup alert might incorrectly assert to be acquiring from a legislation enforcement institution and will report having situated child pornography or various other unlawful data on the tool. The alert will similarly have a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 3CADE81E
md5: 969077eab3fe3a2d37de646d2ac01759
name: 969077EAB3FE3A2D37DE646D2AC01759.mlw
sha1: dbc88212cd3fe183160dac16359438e652ff79aa
sha256: 66375885d546c22735db609f693cb5e753fc604659a23fb810d0c70795f1320e
sha512: 2c4ed248204fb6c49f65b4f621b7b7b3ab807b7190d784081b9a8a75e0dd82b6db7b1be91385c5d5022e14568d13aab2077ce52f0358e9adfa4eec23a4160309
ssdeep: 6144:sRwJG94pm6N8K7+2yTGfWS2u8oP3atu1ZnmkxBkoMWn:sKJTphN80HiA9263ku1dfDko7n
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.GZAQ also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0055dd191 )
Elastic malicious (high confidence)
DrWeb Win32.HLLM.Reset.493
Cynet Malicious (score: 100)
Cylance Unsafe
Zillya Trojan.Blocker.Win32.34482
Sangfor Ransom.Win32.Blocker.ijws
CrowdStrike win/malicious_confidence_100% (D)
K7GW Trojan ( 0055dd191 )
Cybereason malicious.ab3fe3
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.GZAQ
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Blocker.ijws
NANO-Antivirus Trojan.Win32.MlwGen.edgwve
Tencent Win32.Trojan.Blocker.Hufg
Sophos ML/PE-A
BitDefenderTheta Gen:NN.ZexaF.34688.pqW@aWKdvHdi
VIPRE Trojan.Win32.Generic!BT
TrendMicro PE_RAMNIT.VSL-O
McAfee-GW-Edition BehavesLike.Win32.Generic.dc
FireEye Generic.mg.969077eab3fe3a2d
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Blocker.dct
Avira HEUR/AGEN.1128672
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Trojan:Win32/Glupteba!ml
AegisLab Trojan.Win32.Generic.4!c
ZoneAlarm Trojan-Ransom.Win32.Blocker.ijws
Acronis suspicious
McAfee Artemis!969077EAB3FE
MAX malware (ai score=98)
VBA32 Malware-Cryptor.Limpopo
Malwarebytes MachineLearning/Anomalous.100%
Panda Trj/CI.A
TrendMicro-HouseCall PE_RAMNIT.VSL-O
Rising Virus.Ramnit!8.4 (CLOUD)
Yandex Trojan.Blocker!Af5Daq+LurE
Ikarus Virus.Win32.Ramnit
Fortinet W32/Kryptik.EYFV!tr
AVG Win32:Malware-gen
Paloalto generic.ml

How to remove Win32/Kryptik.GZAQ 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 GridinSoft3.

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

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References

  1. Microsoft Ignite: How to disable User Account Control (UAC) on Windows Server
  2. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  3. 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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