Win32/Kryptik.GAXT

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

What is Win32/Kryptik.GAXT infection?

In this post you will find regarding the definition of Win32/Kryptik.GAXT and also its adverse impact on your computer. Such ransomware are a kind of malware that is specified by online scams to require paying the ransom money by a victim.

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Most of the cases, Win32/Kryptik.GAXT virus will advise its targets to start funds move for the purpose of counteracting the modifications that the Trojan infection has introduced to the victim’s device.

Win32/Kryptik.GAXT Summary

These adjustments 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.
  • 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;
  • Steals private information from local Internet browsers;
  • 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;
  • Likely virus infection of existing system binary;
  • 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 files situated on the victim’s hard drive — so the victim can no longer make use of the data;
  • Preventing routine access 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.GAXT

The most typical networks through which Win32/Kryptik.GAXT are infused are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a repercussion of user winding up on a source that organizes a destructive software program;

As quickly as the Trojan is successfully injected, it will certainly either cipher the information on the target’s PC or prevent the gadget from operating in a correct way – while additionally putting a ransom money note that points out the demand for the sufferers to effect the repayment for the function of decrypting the documents or restoring the data system back to the preliminary condition. In most instances, the ransom note will certainly show up when the client restarts the COMPUTER after the system has already been damaged.

Win32/Kryptik.GAXT distribution networks.

In various corners of the globe, Win32/Kryptik.GAXT expands by jumps and also bounds. Nonetheless, the ransom money notes and tricks of obtaining the ransom amount might differ relying on particular local (local) setups. The ransom notes and methods of obtaining the ransom amount might vary depending on particular local (local) settings.

Ransomware injection

As an example:

    Faulty notifies about unlicensed software.

    In certain locations, the Trojans typically wrongfully report having spotted some unlicensed applications allowed on the target’s device. The alert then demands the customer to pay the ransom money.

    Faulty declarations about prohibited material.

    In nations where software program piracy is much less popular, this method is not as efficient for the cyber scams. Alternatively, the Win32/Kryptik.GAXT popup alert might incorrectly declare to be stemming from a law enforcement organization and also will certainly report having located kid pornography or other unlawful data on the device.

    Win32/Kryptik.GAXT popup alert might incorrectly claim to be obtaining from a regulation enforcement establishment as well as will certainly report having located youngster porn or various other unlawful information on the gadget. The alert will likewise consist of a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: 058E245C
md5: 42de95649d37db069143ddc6790ef84c
name: 42DE95649D37DB069143DDC6790EF84C.mlw
sha1: ba1410aed838ca0a0e183f9007881ddc7e3dbd1b
sha256: 7b43d8945d03e1be3a702229b2f25b26485cc7b3d8d41f20ea13153ec1c66f8b
sha512: e7886564bc576eb3e2432bfde7199487d0677685d72803e4bc7fe1c47075e52c2a5b8a84448c80bec2fc1a64a287387583df05579a91101163b5d8fdbe5bc520
ssdeep: 6144:acFkiy8G+7vpwdOwcBFsXGQohpTJOvI65PMZfLiy4R+Js3XpKIKKO:Jk8G+7vpwdO9BFs2JTkA//SpKIdO
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright xa9AVG Technologies 2016 All rights reserved.
FileVersion: 9.4.22.805
CompanyName: AVG Technologies
PrivateBuild: 9.4.22.805
LegalTrademarks: Copyright xa9AVG Technologies 2016 All rights reserved.
Comments: Winhttp Employment
ProductName: KeepingVirtualized
ProductVersion: 9.4.22.805
FileDescription: Winhttp Employment
OriginalFilename: KeepingVirtualized.exe
Translation: 0x0409 0x04b0

Win32/Kryptik.GAXT also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
CynetMalicious (score: 100)
ALYacTrojan.Generic.22837622
CylanceUnsafe
ZillyaTrojan.Kryptik.Win32.1497164
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
AlibabaRansom:Win32/Bitcovar.659e6d7b
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Kryptik.GAXT
APEXMalicious
AvastWin32:Malware-gen
KasperskyTrojan-Ransom.Win32.Bitcovar.hs
BitDefenderTrojan.Generic.22837622
NANO-AntivirusTrojan.Win32.Bitcovar.fimwcu
MicroWorld-eScanTrojan.Generic.22837622
TencentWin32.Trojan.Bitcovar.Pdms
Ad-AwareTrojan.Generic.22837622
SophosMal/Generic-S
ComodoMalware@#2h0mck16nufgb
F-SecureTrojan.TR/Crypt.XPACK.btlga
BitDefenderThetaGen:NN.ZexaF.34608.Cq0@aKAiwjei
VIPRETrojan.Win32.Generic!BT
TrendMicroMal_HPGen-37b
McAfee-GW-EditionBehavesLike.Win32.Injector.gc
FireEyeGeneric.mg.42de95649d37db06
EmsisoftTrojan.Generic.22837622 (B)
SentinelOneStatic AI – Malicious PE
AviraTR/Crypt.XPACK.btlga
MicrosoftRansom:Win32/Betisrypt.D
ArcabitTrojan.Generic.D15C7976
AegisLabTrojan.Win32.Bitcovar.j!c
ZoneAlarmTrojan-Ransom.Win32.Bitcovar.hs
GDataTrojan.Generic.22837622
AhnLab-V3Win-Trojan/Sagecrypt.Gen
Acronissuspicious
McAfeeArtemis!42DE95649D37
MAXmalware (ai score=98)
VBA32Trojan-Ransom.Bitcovar
MalwarebytesMachineLearning/Anomalous.100%
PandaTrj/CI.A
TrendMicro-HouseCallMal_HPGen-37b
RisingRansom.Bitcovar!8.E709 (CLOUD)
YandexTrojan.Bitcovar!bc5+lIoPkAs
IkarusTrojan-Spy.Remcos
FortinetW32/Filecoder.FS!tr.ransom
AVGWin32:Malware-gen
Paloaltogeneric.ml
Qihoo-360Win32/Trojan.Ransom.960

How to remove Win32/Kryptik.GAXT 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.GAXT 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.GAXT 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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