Win32/Kryptik.GIYB

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

What is Win32/Kryptik.GIYB infection?

In this post you will certainly locate regarding the definition of Win32/Kryptik.GIYB and also its negative impact on your computer. Such ransomware are a type of malware that is clarified by online frauds to demand paying the ransom money by a sufferer.

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Most of the situations, Win32/Kryptik.GIYB ransomware will certainly instruct its targets to start funds transfer for the objective of reducing the effects of the changes that the Trojan infection has actually presented to the victim’s gadget.

Win32/Kryptik.GIYB 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.
  • A process attempted to delay the analysis task.;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • Unconventionial language used in binary resources: Estonian;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Detects Sandboxie through the presence of a library;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • A system process is generating network traffic likely as a result of process injection;
  • 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.
  • Checks the presence of disk drives in the registry, possibly for anti-virtualization;
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records situated on the target’s disk drive — so the victim can no more utilize the data;
  • Preventing regular accessibility to the victim’s workstation;

Win32/Kryptik.GIYB

The most normal networks through which Win32/Kryptik.GIYB Ransomware Trojans are injected are:

  • By methods of phishing emails;
  • As a repercussion of individual winding up on a source that hosts a harmful software;

As soon as the Trojan is effectively infused, it will either cipher the information on the victim’s computer or prevent the gadget from operating in an appropriate manner – while also positioning a ransom money note that mentions the requirement for the targets to effect the settlement for the purpose of decrypting the records or restoring the data system back to the initial condition. In most circumstances, the ransom money note will certainly show up when the client restarts the PC after the system has actually already been harmed.

Win32/Kryptik.GIYB circulation networks.

In various corners of the globe, Win32/Kryptik.GIYB expands by jumps and also bounds. However, the ransom money notes and methods of obtaining the ransom money quantity might vary depending on particular local (local) setups. The ransom notes and methods of obtaining the ransom quantity might vary depending on particular local (local) setups.

Ransomware injection

For example:

    Faulty alerts regarding unlicensed software program.

    In particular areas, the Trojans often wrongfully report having found some unlicensed applications made it possible for on the victim’s tool. The sharp then demands the customer to pay the ransom money.

    Faulty statements regarding illegal material.

    In nations where software piracy is less preferred, this method is not as efficient for the cyber fraudulences. Additionally, the Win32/Kryptik.GIYB popup alert may falsely claim to be originating from a law enforcement institution and will report having located youngster pornography or various other illegal information on the gadget.

    Win32/Kryptik.GIYB popup alert may falsely assert to be obtaining from a legislation enforcement establishment and also will certainly report having located youngster pornography or other unlawful data on the device. The alert will similarly contain a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: CC373761
md5: 65948b2676322de9d7739000336efec3
name: 65948B2676322DE9D7739000336EFEC3.mlw
sha1: fc375a3dd0a04c351502ce542b5bc624e8e29fd1
sha256: 79fdb8d909016b27dfabe3d532df5540102f21f4cd9645d355b1cb21e9497b7a
sha512: cf05e490ad6dff57f1be924b59a6ab7c9f78b78fb3bd2422d83689ef5acb436c1eeb2365799602780187ca1b944c245fb8c74dadb4e776b7ef31e8fc104b5b72
ssdeep: 1536:Bof9n23WlxJL3JkdHDrqPfcE9N6srRM/rtw59vPMbjCQXcpjJmHh+CU1ouT/Zlz:O923+JLipwNVWa5tMbjnjHoZ1oE1
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0809 0x04b0

Win32/Kryptik.GIYB also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
MicroWorld-eScanTrojan.BRMon.Gen.4
CAT-QuickHealTrojan.Chapak.ZZ5
McAfeePacked-FJJ!65948B267632
CylanceUnsafe
AegisLabTrojan.Win32.Mokes.m!c
SangforTrojan.Win32.Save.a
K7AntiVirusTrojan ( 0053305e1 )
BitDefenderTrojan.BRMon.Gen.4
K7GWTrojan ( 0053305e1 )
Cybereasonmalicious.676322
SymantecPacked.Generic.525
APEXMalicious
AvastWin32:Malware-gen
KasperskyHEUR:Trojan.Win32.Generic
AlibabaRansom:Win32/GandCrab.2f214778
NANO-AntivirusTrojan.Win32.Chapak.fflbap
RisingRansom.GandCrypt!8.F33E (CLOUD)
Ad-AwareTrojan.BRMon.Gen.4
EmsisoftTrojan.BRMon.Gen.4 (B)
ComodoMalware@#3nv06r6yxu59c
DrWebTrojan.PWS.Panda.13495
ZillyaTrojan.Chapak.Win32.7396
TrendMicroRansom_HPGANDCRAB.SMG2
McAfee-GW-EditionBehavesLike.Win32.Generic.cm
MaxSecureRansomeware.GandCrypt.Gen
FireEyeGeneric.mg.65948b2676322de9
SophosMal/Generic-R + Mal/GandCrab-B
IkarusTrojan.Win32.Crypt
AviraHEUR/AGEN.1102792
MAXmalware (ai score=100)
MicrosoftRansom:Win32/GandCrab.MTE!bit
ArcabitTrojan.BRMon.Gen.4
AhnLab-V3Win-Trojan/Gandcrab04.Exp
GDataTrojan.BRMon.Gen.4
CynetMalicious (score: 100)
ESET-NOD32a variant of Win32/Kryptik.GIYB
Acronissuspicious
VBA32BScope.TrojanPSW.Stealer
ALYacTrojan.BRMon.Gen.4
MalwarebytesTrojan.MalPack.Generic
PandaTrj/CI.A
TrendMicro-HouseCallRansom_HPGANDCRAB.SMG2
TencentWin32.Trojan.Generic.Wozs
YandexTrojan.Agent!KPppqtJrHtY
SentinelOneStatic AI – Suspicious PE
FortinetW32/Kryptik.GJBV!tr
BitDefenderThetaGen:NN.ZexaF.34608.jyW@aqLTUQhI
AVGWin32:Malware-gen
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_100% (D)
Qihoo-360Win32/Backdoor.5e5

How to remove Win32/Kryptik.GIYB 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.GIYB 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.GIYB 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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