Win32/Kryptik.GFBW

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

What is Win32/Kryptik.GFBW infection?

In this article you will certainly find concerning the meaning of Win32/Kryptik.GFBW and its adverse influence on your computer. Such ransomware are a form of malware that is specified by online frauds to demand paying the ransom by a victim.

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In the majority of the cases, Win32/Kryptik.GFBW ransomware will advise its targets to launch funds transfer for the objective of neutralizing the changes that the Trojan infection has actually presented to the sufferer’s tool.

Win32/Kryptik.GFBW 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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 attempted to delay the analysis task.;
  • 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.
  • Executed a process and injected code into it, probably while unpacking;
  • Ciphering the files situated on the victim’s hard drive — so the sufferer can no longer utilize 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.GFBW

One of the most regular channels through which Win32/Kryptik.GFBW Ransomware Trojans are infused are:

  • By means of phishing e-mails;
  • As an effect of user ending up on a source that hosts a harmful software;

As quickly as the Trojan is effectively infused, it will either cipher the data on the victim’s computer or stop the tool from working in an appropriate way – while likewise positioning a ransom note that discusses the requirement for the victims to impact the settlement for the function of decrypting the files or recovering the file system back to the initial condition. In many circumstances, the ransom note will show up when the client restarts the COMPUTER after the system has actually already been harmed.

Win32/Kryptik.GFBW circulation channels.

In numerous corners of the globe, Win32/Kryptik.GFBW grows by leaps as well as bounds. Nevertheless, the ransom notes and methods of extorting the ransom money quantity might vary depending upon specific regional (regional) setups. The ransom notes and also tricks of extorting the ransom money amount might vary depending on specific local (local) setups.

Ransomware injection

For example:

    Faulty signals about unlicensed software application.

    In particular locations, the Trojans commonly wrongfully report having actually detected some unlicensed applications made it possible for on the victim’s tool. The alert after that demands the individual to pay the ransom.

    Faulty declarations about prohibited content.

    In countries where software piracy is much less preferred, this technique is not as reliable for the cyber scams. Conversely, the Win32/Kryptik.GFBW popup alert may falsely assert to be originating from a law enforcement establishment as well as will report having situated youngster porn or various other unlawful information on the tool.

    Win32/Kryptik.GFBW popup alert may falsely assert to be acquiring from a law enforcement organization and also will certainly report having located kid porn or various other prohibited information on the device. The alert will in a similar way contain a demand for the individual to pay the ransom.

Technical details

File Info:

crc32: F0705F25
md5: b7013bba009725977b6815d55a28c55d
name: B7013BBA009725977B6815D55A28C55D.mlw
sha1: 1915ea415594cb41935daf597543f4537cfd8c97
sha256: fb938f018281ffc0ba8493c0d290856f3cbaf67170344a9cec5cb4e993ac65a7
sha512: 82fa776f833c4eb14810999a21164a73de5920ea0f4dbaa045b91d93e70bea0068ca65cc1c92453d805e83cfe1493666c54f7f0ab35b9f4595de2c3391d433d2
ssdeep: 12288:jNFwFmEI1plANrDXAfzEc237QI8IeTyHtdkl4dKOKOStw:jNv1pKNrDXA79IBeTyNdg0/KVt
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.GFBW also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusAdware ( 00539ed31 )
Elasticmalicious (high confidence)
CynetMalicious (score: 100)
CAT-QuickHealTrojan.Mauvaise.SL1
ALYacTrojan.Ransom.GandCrab
CylanceUnsafe
ZillyaTrojan.Snojan.Win32.1749
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_90% (D)
K7GWTrojan ( 005734ab1 )
Cybereasonmalicious.a00972
SymantecBackdoor.Rozena
ESET-NOD32a variant of Win32/Kryptik.GFBW
APEXMalicious
AvastWin32:Malware-gen
ClamAVWin.Ransomware.Gandcrab-6819644-0
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderGen:Heur.Mint.Titirez.IyW@puWj6kb
NANO-AntivirusTrojan.Win32.Snojan.facncn
SUPERAntiSpywareTrojan.Agent/Gen-Kryptik
MicroWorld-eScanGen:Heur.Mint.Titirez.IyW@puWj6kb
TencentWin32.Trojan.Inject.Auto
Ad-AwareGen:Heur.Mint.Titirez.IyW@puWj6kb
SophosMal/Generic-R + Mal/GandCrab-D
ComodoTrojWare.Win32.Chapak.AH@7l6n04
BitDefenderThetaGen:NN.ZexaF.34692.IyW@auWj6kb
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_GANDCRAB.SMALY-3
McAfee-GW-EditionBehavesLike.Win32.Generic.hc
FireEyeGeneric.mg.b7013bba00972597
EmsisoftGen:Heur.Mint.Titirez.IyW@puWj6kb (B)
SentinelOneStatic AI – Malicious PE
WebrootW32.Trojan.Gen
AviraHEUR/AGEN.1126869
eGambitUnsafe.AI_Score_97%
Antiy-AVLTrojan/Generic.ASMalwS.2595BF8
MicrosoftTrojan:Win32/Azorult!ml
ArcabitTrojan.Mint.Titirez.EE5DD7
AegisLabTrojan.Win32.Snojan.4!c
GDataGen:Heur.Mint.Titirez.IyW@puWj6kb
AhnLab-V3Win-Trojan/MalPe35.Suspicious.X2032
Acronissuspicious
McAfeeArtemis!B7013BBA0097
MAXmalware (ai score=99)
VBA32BScope.Trojan.Kryptomix
MalwarebytesTrojan.MalPack
TrendMicro-HouseCallRansom_GANDCRAB.SMALY-3
RisingTrojan.Snojan!8.E387 (CLOUD)
YandexTrojan.GenAsa!ai1LC7w58t4
IkarusTrojan.Win32.Crypt
MaxSecureRansomeware.CRAB.gen
FortinetW32/GenKryptik.DQHN!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml

How to remove Win32/Kryptik.GFBW ransomware?

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 GridinSoft1

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.GFBW 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.GFBW 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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