Win32/Kryptik.GKTD

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

What is Win32/Kryptik.GKTD infection?

In this short article you will locate regarding the meaning of Win32/Kryptik.GKTD and also its unfavorable impact on your computer. Such ransomware are a form of malware that is clarified by online fraudulences to require paying the ransom by a victim.

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In the majority of the cases, Win32/Kryptik.GKTD virus will certainly instruct its sufferers to start funds move for the function of neutralizing the amendments that the Trojan infection has introduced to the sufferer’s device.

Win32/Kryptik.GKTD Summary

These alterations 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.
  • Unconventionial language used in binary resources: Turkish;
  • 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!
  • Exhibits possible ransomware file modification behavior;
  • 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.
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files found on the victim’s hard disk drive — so the target can no longer utilize the information;
  • 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.GKTD

The most regular networks where Win32/Kryptik.GKTD Ransomware are infused are:

  • By means of phishing e-mails;
  • As a repercussion of individual ending up on a resource that organizes a harmful software program;

As quickly as the Trojan is efficiently infused, it will certainly either cipher the data on the target’s computer or stop the gadget from working in a correct way – while additionally placing a ransom money note that mentions the requirement for the sufferers to impact the repayment for the objective of decrypting the records or recovering the documents system back to the preliminary problem. In most circumstances, the ransom money note will certainly come up when the customer restarts the COMPUTER after the system has already been damaged.

Win32/Kryptik.GKTD circulation channels.

In different corners of the globe, Win32/Kryptik.GKTD expands by leaps and bounds. Nevertheless, the ransom notes as well as methods of obtaining the ransom money amount may vary relying on particular local (local) settings. The ransom notes as well as tricks of extorting the ransom money quantity might vary depending on certain local (regional) setups.

Ransomware injection

For example:

    Faulty informs regarding unlicensed software program.

    In particular areas, the Trojans often wrongfully report having actually spotted some unlicensed applications allowed on the sufferer’s device. The sharp after that requires the individual to pay the ransom.

    Faulty declarations concerning illegal web content.

    In nations where software application piracy is much less prominent, this method is not as reliable for the cyber fraudulences. Conversely, the Win32/Kryptik.GKTD popup alert may falsely assert to be deriving from a police organization as well as will report having located youngster pornography or various other unlawful data on the gadget.

    Win32/Kryptik.GKTD popup alert might falsely claim to be deriving from a law enforcement organization and will report having located youngster pornography or other unlawful data on the gadget. The alert will likewise include a need for the customer to pay the ransom.

Technical details

File Info:

crc32: D0469195
md5: 3c5e0553238b26a42dbda106b53942f1
name: 3C5E0553238B26A42DBDA106B53942F1.mlw
sha1: 98f0b2843b4a902eabaea1632bf0b1e1172b576e
sha256: 73537ff1f2b9bb5ca386c6963e249d12f51f000f7c148f27f28b94879aa26bdf
sha512: f7c7f0be69f12e6f2f19f9db3926e7b6f38969ea4010944dc638b8bcfacc9ff39496c8b61f7276f45f1daebe7791f617f439cc12a7bb92b2abb7c4802642ef62
ssdeep: 3072:WeZES1O+tSng+L4XctpYlQy80T5Ztu5xR/oAYnqrG9gwVNBX/8:BjA3gItuaq1Z8QSQgMX/8
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

InternalName: sdafsdgsfdg.exe
FileVersion: 1.0.0.1
Translation: 0x0809 0x04b0

Win32/Kryptik.GKTD also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 0053c6c71 )
Elasticmalicious (high confidence)
MicroWorld-eScanTrojan.BRMon.Gen.4
McAfeePacked-FLX!3C5E0553238B
CylanceUnsafe
ZillyaTrojan.GandCrypt.Win32.588
CrowdStrikewin/malicious_confidence_100% (D)
BitDefenderTrojan.BRMon.Gen.4
K7GWTrojan ( 0053c6c71 )
Cybereasonmalicious.3238b2
BitDefenderThetaGen:NN.ZexaF.34670.ku0@aihi!HhG
CyrenW32/Kryptik.IF.gen!Eldorado
SymantecPacked.Generic.525
ESET-NOD32a variant of Win32/Kryptik.GKTD
APEXMalicious
Paloaltogeneric.ml
CynetMalicious (score: 100)
KasperskyTrojan-Ransom.Win32.GandCrypt.evt
AlibabaRansom:Win32/GandCrypt.002002
NANO-AntivirusTrojan.Win32.GandCrypt.fhrdoa
SUPERAntiSpywareRansom.GandCrab/Variant
TencentWin32.Trojan.Gandcrypt.Llhu
Ad-AwareTrojan.BRMon.Gen.4
SophosMal/Generic-R + Mal/GandCrab-B
ComodoTrojWare.Win32.TrojanSpy.Ursnif.EM@7vyz23
DrWebTrojan.PWS.Stealer.23869
VIPRETrojan.Win32.Generic!BT
TrendMicroMal_HPGen-50
McAfee-GW-EditionBehavesLike.Win32.Generic.cc
FireEyeGeneric.mg.3c5e0553238b26a4
EmsisoftTrojan.BRMon.Gen.4 (B)
SentinelOneStatic AI – Malicious PE
AviraHEUR/AGEN.1106537
eGambitUnsafe.AI_Score_99%
Antiy-AVLTrojan[Ransom]/Win32.GandCrypt
MicrosoftTrojan:Win32/Predator!ml
ArcabitTrojan.BRMon.Gen.4
AegisLabTrojan.Win32.GandCrypt.4!c
ZoneAlarmTrojan-Ransom.Win32.GandCrypt.evt
GDataWin32.Trojan-Ransom.GandCrab.U
AhnLab-V3Win-Trojan/MalPe34.Suspicious.X2029
Acronissuspicious
VBA32BScope.Trojan.Fuery
MAXmalware (ai score=100)
MalwarebytesTrojan.MalPack
TrendMicro-HouseCallMal_HPGen-50
RisingRansom.GandCrypt!8.F33E (CLOUD)
YandexTrojan.GenAsa!tRRhLL3XKiA
IkarusTrojan.Crypt
MaxSecureTrojan.Malware.300983.susgen
FortinetW32/Kryptik.GKSY!tr
PandaTrj/Genetic.gen
Qihoo-360Win32/Ransom.GandCrab.HwoCyAQA

How to remove Win32/Kryptik.GKTD 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.GKTD 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.GKTD 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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