Win32/Kryptik.GAVI

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

What is Win32/Kryptik.GAVI infection?

In this short article you will locate about the interpretation of Win32/Kryptik.GAVI as well as its unfavorable effect on your computer system. Such ransomware are a type of malware that is specified by on the internet scams to demand paying the ransom money by a sufferer.

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Most of the cases, Win32/Kryptik.GAVI virus will instruct its targets to start funds move for the purpose of reducing the effects of the changes that the Trojan infection has introduced to the victim’s gadget.

Win32/Kryptik.GAVI 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.
  • A process created a hidden window;
  • 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;
  • Attempts to delete volume shadow copies;
  • Modifies boot configuration settings;
  • 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
  • Exhibits possible ransomware file modification behavior;
  • 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.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the papers located on the sufferer’s disk drive — so the victim can no longer use the data;
  • Preventing regular accessibility to the victim’s workstation;
Similar behavior
Related domains
z.whorecord.xyzRansom:Win32/Bitcovar.b6c35773
a.tomx.xyzRansom:Win32/Bitcovar.b6c35773

Win32/Kryptik.GAVI

One of the most normal channels whereby Win32/Kryptik.GAVI are injected are:

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

As quickly as the Trojan is effectively infused, it will certainly either cipher the information on the victim’s computer or stop the tool from functioning in a proper way – while additionally putting a ransom money note that points out the requirement for the targets to impact the payment for the purpose of decrypting the papers or bring back the data system back to the first condition. In the majority of instances, the ransom note will turn up when the client reboots the PC after the system has already been harmed.

Win32/Kryptik.GAVI distribution networks.

In numerous edges of the globe, Win32/Kryptik.GAVI expands by leaps as well as bounds. However, the ransom money notes and also tricks of obtaining the ransom money quantity may vary depending upon certain regional (regional) setups. The ransom money notes as well as techniques of obtaining the ransom quantity might differ depending on specific regional (regional) settings.

Ransomware injection

For example:

    Faulty signals regarding unlicensed software application.

    In certain locations, the Trojans typically wrongfully report having actually detected some unlicensed applications made it possible for on the target’s tool. The sharp then demands the customer to pay the ransom.

    Faulty statements about illegal material.

    In nations where software program piracy is less preferred, this method is not as effective for the cyber frauds. Conversely, the Win32/Kryptik.GAVI popup alert may falsely assert to be originating from a law enforcement institution as well as will certainly report having situated kid porn or other unlawful data on the device.

    Win32/Kryptik.GAVI popup alert may wrongly claim to be obtaining from a law enforcement organization and also will certainly report having situated youngster pornography or various other illegal information on the gadget. The alert will similarly contain a need for the user to pay the ransom.

Technical details

File Info:

crc32: 95407056
md5: 3115d9db41fed2df934421380d96eaf7
name: 3115D9DB41FED2DF934421380D96EAF7.mlw
sha1: 45b7cf1359341fd1dc05110fe26dad3ffab045a0
sha256: 9d01906fc93a76a64118839285bbefc88797031b4da0260bf801d12e529fc459
sha512: d9197750783e72285d4349808c613116dbe369e484f3389d334750c7ff9e112e968d180ebd9459ef6640300482608da98d8f86dd2832877c2c04aeba58ada322
ssdeep: 6144:GtbAisf4ckBYUBB47JGItirJgoDaV5/pzae3XEOiqTqXiLuFxISP+zhkZomUcDxv:VqXiiLPNCcf5OgT9xlDJ
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.GAVI also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 0056e9471 )
Elasticmalicious (high confidence)
CynetMalicious (score: 100)
ALYacGen:Variant.Crypt.44
CylanceUnsafe
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_80% (D)
AlibabaRansom:Win32/Bitcovar.b6c35773
K7GWTrojan ( 0056e9471 )
Cybereasonmalicious.b41fed
SymantecRansom.BTCware
ESET-NOD32a variant of Win32/Kryptik.GAVI
APEXMalicious
AvastWin32:Malware-gen
KasperskyTrojan-Ransom.Win32.Bitcovar.ho
BitDefenderGen:Variant.Crypt.44
NANO-AntivirusTrojan.Win32.Bitcovar.ewgjbi
MicroWorld-eScanGen:Variant.Crypt.44
TencentWin32.Trojan.Bitcovar.Lfpt
Ad-AwareGen:Variant.Crypt.44
SophosMal/Generic-S
BitDefenderThetaGen:NN.ZexaF.34690.vqW@aKuuE5ei
VIPRETrojan.Win32.Generic!BT
TrendMicroMal_HPGen-37b
McAfee-GW-EditionBehavesLike.Win32.Generic.fc
FireEyeGeneric.mg.3115d9db41fed2df
EmsisoftGen:Variant.Crypt.44 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Bitcovar.ae
AviraHEUR/AGEN.1130590
MicrosoftTrojan:Win32/Tiggre!rfn
AegisLabTrojan.Win32.Bitcovar.j!c
ZoneAlarmTrojan-Ransom.Win32.Bitcovar.ho
GDataGen:Variant.Crypt.44
AhnLab-V3Win-Trojan/Sagecrypt.Gen
Acronissuspicious
McAfeeArtemis!3115D9DB41FE
MAXmalware (ai score=99)
VBA32Trojan-Ransom.Bitcovar
MalwarebytesMachineLearning/Anomalous.100%
PandaTrj/CI.A
TrendMicro-HouseCallMal_HPGen-37b
RisingRansom.Bitcovar!8.E709 (CLOUD)
IkarusTrojan-Ransom.Bitcovar
FortinetW32/Kryptik.FQUM!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml

How to remove Win32/Kryptik.GAVI ransomware?

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.GAVI 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.GAVI 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/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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