Win32/Kryptik.GABT

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

What is Win32/Kryptik.GABT infection?

In this post you will discover about the meaning of Win32/Kryptik.GABT and its negative influence on your computer. Such ransomware are a form of malware that is elaborated by online scams to demand paying the ransom money by a sufferer.

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Most of the cases, Win32/Kryptik.GABT infection will certainly advise its sufferers to start funds move for the purpose of counteracting the amendments that the Trojan infection has introduced to the sufferer’s device.

Win32/Kryptik.GABT Summary

These modifications 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.
  • 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.
  • 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;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers located on the target’s hard disk drive — so the target can no longer make use of the data;
  • Preventing normal accessibility 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.GABT

The most common channels whereby Win32/Kryptik.GABT are injected are:

  • By means of phishing e-mails;
  • As an effect of customer ending up on a source that organizes a destructive software program;

As soon as the Trojan is successfully injected, it will certainly either cipher the data on the victim’s computer or stop the gadget from working in a proper manner – while additionally positioning a ransom note that states the demand for the targets to effect the settlement for the objective of decrypting the papers or restoring the data system back to the initial condition. In the majority of instances, the ransom money note will certainly come up when the client restarts the PC after the system has already been harmed.

Win32/Kryptik.GABT distribution channels.

In numerous corners of the world, Win32/Kryptik.GABT expands by jumps and also bounds. Nonetheless, the ransom money notes and methods of extorting the ransom quantity might differ depending on specific regional (local) settings. The ransom money notes and also techniques of obtaining the ransom quantity may differ depending on certain regional (regional) settings.

Ransomware injection

For example:

    Faulty informs regarding unlicensed software program.

    In certain areas, the Trojans usually wrongfully report having detected some unlicensed applications allowed on the target’s device. The sharp then requires the individual to pay the ransom money.

    Faulty declarations concerning prohibited content.

    In nations where software application piracy is less preferred, this method is not as effective for the cyber frauds. Conversely, the Win32/Kryptik.GABT popup alert might wrongly declare to be deriving from a law enforcement establishment as well as will report having located kid porn or other unlawful information on the device.

    Win32/Kryptik.GABT popup alert may incorrectly declare to be obtaining from a legislation enforcement establishment and also will report having located child porn or other illegal information on the gadget. The alert will likewise include a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: 83741E9F
md5: c1bfd53284671b42d71c70989538431e
name: C1BFD53284671B42D71C70989538431E.mlw
sha1: 1a054245bad0ee7504085795624459021c0b4c9a
sha256: 7c65fd5f43f07dfece6e753c30b42757cef2f197af401da6e2f218bbb694bad7
sha512: 71b10389279705d7a293898c98f47befbe57cff6731a18b608292e408e3a1ce1966471b428f9448cfffd66be200cd87db6eded67bba07bc71f6f420e585fe075
ssdeep: 3072:SIngVZKSHcMYbLWMbLi0mX7TE7Ka+WrBX3ofdk/fXtqOP8+5gj4qh5D:SIng/KS8MYvRLi0m3TVw5DwOP4h5
type: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.GABT also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 0051f2d81 )
Elasticmalicious (high confidence)
DrWebWin32.HLLM.Reset.549
CynetMalicious (score: 100)
ALYacTrojan.Ransom.BWI
CylanceUnsafe
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
K7GWTrojan ( 0051f2d81 )
Cybereasonmalicious.284671
ESET-NOD32a variant of Win32/Kryptik.GABT
APEXMalicious
AvastWin32:Malware-gen
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderTrojan.Ransom.BWI
NANO-AntivirusTrojan.Win32.Lebag.evrfgk
SUPERAntiSpywareBackdoor.Hostil/Variant
MicroWorld-eScanTrojan.Ransom.BWI
TencentWin32.Trojan.Lebag.Sxyd
Ad-AwareTrojan.Ransom.BWI
SophosML/PE-A + Mal/EncPk-AOP
ComodoTrojWare.Win32.Ransom.Lukitos.B@7f84mw
BitDefenderThetaAI:Packer.CE5A3F4321
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_CERBER.SMALY0A
McAfee-GW-EditionBehavesLike.Win32.Generic.cc
FireEyeGeneric.mg.c1bfd53284671b42
EmsisoftTrojan.Ransom.BWI (B)
SentinelOneStatic AI – Malicious PE
AviraTR/Crypt.XPACK.Gen7
eGambitUnsafe.AI_Score_93%
MicrosoftTrojan:Win32/Tiggre!rfn
AegisLabTrojan.Multi.Generic.4!c
GDataTrojan.Ransom.BWI
AhnLab-V3Trojan/Win32.Matrixran.R214485
Acronissuspicious
McAfeeGenericRXDK-KO!C1BFD5328467
MAXmalware (ai score=99)
VBA32Trojan.FakeAV.01657
MalwarebytesTrojan.MalPack
PandaTrj/GdSda.A
TrendMicro-HouseCallRansom_CERBER.SMALY0A
RisingTrojan.Kryptik!1.B3B3 (CLOUD)
YandexTrojan.GenAsa!tuArkgJChjk
IkarusTrojan.Win32.Lebag
FortinetW32/Kryptik.GKMB!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml
Qihoo-360Win32/Ransom.Generic.HxMBEpsA

How to remove Win32/Kryptik.GABT 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 GridinSoft2

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.GABT 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.GABT 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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