Win32/Kryptik.GKFC

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

What is Win32/Kryptik.GKFC infection?

In this post you will certainly find regarding the meaning of Win32/Kryptik.GKFC and its unfavorable influence on your computer. Such ransomware are a kind of malware that is specified by on the internet scams to demand paying the ransom by a sufferer.

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In the majority of the instances, Win32/Kryptik.GKFC virus will certainly advise its victims to launch funds move for the function of counteracting the modifications that the Trojan infection has introduced to the victim’s tool.

Win32/Kryptik.GKFC 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.
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • Performs some HTTP requests;
  • Unconventionial language used in binary resources: Albanian;
  • 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 repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Collects information to fingerprint the system. There are behavioral human characteristics that can be used to digitally identify a person to grant access to systems, devices, or data. Unlike passwords and verification codes, fingerprints are fundamental parts of user’s identities. Among the threats blocked on biometric data processing and storage systems is spyware, the malware used in phishing attacks (mostly spyware downloaders and droppers), ransomware, and Banking Trojans as posing the greatest danger.
  • Ciphering the papers situated on the target’s hard disk drive — so the target can no longer use the data;
  • Preventing regular 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.
Similar behavior
Related domains
allods-games.siteWin32.Trojan-Ransom.GandCrab.U

Win32/Kryptik.GKFC

One of the most typical networks where Win32/Kryptik.GKFC Ransomware Trojans are infused are:

  • By ways of phishing emails;
  • As a consequence of user ending up on a source that hosts a harmful software program;

As quickly as the Trojan is effectively infused, it will either cipher the information on the victim’s PC or avoid the device from working in an appropriate way – while also positioning a ransom note that mentions the requirement for the targets to effect the repayment for the purpose of decrypting the documents or recovering the file system back to the preliminary problem. In many instances, the ransom note will certainly turn up when the customer reboots the COMPUTER after the system has actually already been harmed.

Win32/Kryptik.GKFC distribution networks.

In various corners of the globe, Win32/Kryptik.GKFC grows by jumps and also bounds. Nonetheless, the ransom notes and tricks of extorting the ransom amount might vary relying on certain neighborhood (local) settings. The ransom notes and also techniques of obtaining the ransom quantity may vary depending on particular regional (local) settings.

Ransomware injection

For example:

    Faulty notifies about unlicensed software application.

    In certain areas, the Trojans usually wrongfully report having actually spotted some unlicensed applications allowed on the target’s tool. The alert after that requires the user to pay the ransom money.

    Faulty declarations about illegal content.

    In countries where software piracy is less prominent, this approach is not as effective for the cyber fraudulences. Additionally, the Win32/Kryptik.GKFC popup alert might falsely declare to be stemming from a police organization and also will certainly report having located kid pornography or various other illegal data on the tool.

    Win32/Kryptik.GKFC popup alert might incorrectly claim to be obtaining from a regulation enforcement institution and will certainly report having located child pornography or various other illegal data on the tool. The alert will in a similar way contain a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 3DBB04B9
md5: 9904e589be138141356460af94352ca0
name: 9904E589BE138141356460AF94352CA0.mlw
sha1: fa9f4ac9c0f86dfeb2b7e7323ed9aee7f7892a4e
sha256: 68c87201923022eae4bfc307335c32a3be03f985bfc4292dcb5212afe315fb01
sha512: c7c337be7b9111911594c2e4cc370b7555bfe13fa829246d7d20a3b1f7a00d5f13c08fb6e229d3d255579879884a035bd45e4028ce53f83bd97787fcc6d3f4e6
ssdeep: 3072:RDIaLY09SmdQdPev25Lj90riADtwvjBuq5O1mBN8l6UaQOTIqXkO:RDBN9LdYPQ610riUtMjBuqttU282V
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2017, fasoojreuyef
FileVersion: 10.1.10.11
ProductVersion: 2.13.5.66

Win32/Kryptik.GKFC also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 00516fdf1 )
Elasticmalicious (high confidence)
DrWebTrojan.PWS.Stealer.24403
CynetMalicious (score: 100)
ALYacDeepScan:Generic.BrResMon.1.36EDB85E
CylanceUnsafe
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
AlibabaTrojan:Win32/Bunitu.063cf231
K7GWTrojan ( 00516fdf1 )
Cybereasonmalicious.9be138
CyrenW32/Bunitu.Q.gen!Eldorado
SymantecPacked.Generic.525
ESET-NOD32a variant of Win32/Kryptik.GKFC
APEXMalicious
AvastWin32:Malware-gen
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderDeepScan:Generic.BrResMon.1.36EDB85E
NANO-AntivirusTrojan.Win32.Coins.fhtlxf
MicroWorld-eScanDeepScan:Generic.BrResMon.1.36EDB85E
TencentMalware.Win32.Gencirc.114d4eb3
Ad-AwareDeepScan:Generic.BrResMon.1.36EDB85E
SophosMal/Generic-R + Mal/GandCrab-G
ComodoTrojWare.Win32.Coins.A@7ub015
BitDefenderThetaAI:Packer.5A4E95B020
McAfee-GW-EditionBehavesLike.Win32.TrojanAitInject.dh
FireEyeGeneric.mg.9904e589be138141
EmsisoftDeepScan:Generic.BrResMon.1.36EDB85E (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.PSW.Coins.bai
WebrootW32.Adware.Installcore
AviraHEUR/AGEN.1121533
MicrosoftTrojanProxy:Win32/Bunitu.Q!bit
GDataWin32.Trojan-Ransom.GandCrab.U
AhnLab-V3Win-Trojan/Gandcrab05.Exp
Acronissuspicious
McAfeeTrojan-FPST!9904E589BE13
MAXmalware (ai score=93)
VBA32BScope.Trojan.Vigorf
MalwarebytesMalware.AI.3340237792
PandaTrj/GdSda.A
RisingRansom.GandCrypt!8.F33E (CLOUD)
YandexTrojan.GenAsa!+X1kgjGxIz0
IkarusTrojan.Crypt
MaxSecureRansomeware.CRAB.gen
FortinetW32/Kryptik.GKJF!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml

How to remove Win32/Kryptik.GKFC 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 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.GKFC 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.GKFC 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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