Win32/Kryptik.EYAU

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

What is Win32/Kryptik.EYAU infection?

In this short article you will certainly discover concerning the definition of Win32/Kryptik.EYAU and also its negative impact on your computer system. Such ransomware are a kind of malware that is specified by online fraudulences to demand paying the ransom money by a victim.

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In the majority of the instances, Win32/Kryptik.EYAU ransomware will advise its targets to initiate funds move for the objective of reducing the effects of the modifications that the Trojan infection has actually introduced to the sufferer’s tool.

Win32/Kryptik.EYAU 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.
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records situated on the sufferer’s hard disk drive — so the victim 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.

Win32/Kryptik.EYAU

One of the most normal networks through which Win32/Kryptik.EYAU are injected are:

  • By means of phishing e-mails;
  • As a repercussion of customer winding up on a resource that holds a destructive software program;

As quickly as the Trojan is efficiently injected, it will either cipher the data on the sufferer’s computer or protect against the tool from operating in an appropriate way – while additionally putting a ransom note that mentions the demand for the victims to impact the repayment for the function of decrypting the papers or recovering the file system back to the initial condition. In the majority of circumstances, the ransom note will certainly show up when the client reboots the PC after the system has already been harmed.

Win32/Kryptik.EYAU distribution channels.

In different edges of the world, Win32/Kryptik.EYAU grows by jumps as well as bounds. Nonetheless, the ransom money notes as well as methods of obtaining the ransom quantity might differ relying on certain local (regional) setups. The ransom notes and also techniques of obtaining the ransom amount may differ depending on specific regional (regional) settings.

Ransomware injection

As an example:

    Faulty alerts regarding unlicensed software.

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

    Faulty statements about illegal content.

    In countries where software piracy is less preferred, this technique is not as efficient for the cyber fraudulences. Additionally, the Win32/Kryptik.EYAU popup alert might falsely declare to be deriving from a law enforcement organization and also will certainly report having located youngster porn or other illegal information on the device.

    Win32/Kryptik.EYAU popup alert may wrongly claim to be acquiring from a legislation enforcement establishment and will certainly report having situated child pornography or various other illegal information on the device. The alert will likewise contain a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: BF30A945
md5: ab5988221027fd85d03a7898766360d3
name: AB5988221027FD85D03A7898766360D3.mlw
sha1: 68ca885f3b06482e05bdf99beaec5ce0425a63bc
sha256: 5f4514d48e0822528e24e8925342417cc3f9344121d3027f3af2f48edebd67f4
sha512: fc2131b885da5ec9c690542be8ca0ae769397f1a1e73e6ff7479c34031a30d31486fb850e44fbc5eda038c30e1ef36f281fd17ac886ae616d7e761fe032795e0
ssdeep: 6144:Ib5ico+QVxP6MwCxB8zxbTD9iZoH3QEiZpxyN90vE:IclVmI8zRn/ATy90
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: xa9 2006 Microsoft Corporation. All rights reserved.
InternalName: odeploy.exe
FileVersion: 12.0.6500.5000
CompanyName: Microsoft Corporation
LegalTrademarks1: Microsoftxae is a registered trademark of Microsoft Corporation.
LegalTrademarks2: Windowsxae is a registered trademark of Microsoft Corporation.
ProductName: 2007 Microsoft Office system
ProductVersion: 12.0.6500.5000
FileDescription: Microsoft Office Multi-Msi ActiveDirectory Deployment Tool.
OriginalFilename: odeploy.exe
Translation: 0x0000 0x04e4

Win32/Kryptik.EYAU also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware2
Elasticmalicious (high confidence)
MicroWorld-eScanTrojan.Ransom.Cerber.1
CAT-QuickHealRansom.Cerber.YY2
ALYacTrojan.Ransom.Cerber.1
CylanceUnsafe
VIPRETrojan.Win32.Generic.pak!cobra
SangforTrojan.Win32.Save.a
K7AntiVirusTrojan ( 005224381 )
BitDefenderTrojan.Ransom.Cerber.1
K7GWTrojan ( 005224381 )
Cybereasonmalicious.21027f
BaiduWin32.Trojan.Kryptik.alb
CyrenW32/Cerber.F.gen!Eldorado
SymantecRansom.Cerber!g3
APEXMalicious
AvastWin32:Malware-gen
KasperskyHEUR:Trojan.Win32.Vucha.dc
AlibabaTrojan:Win32/Yakes.14c45201
NANO-AntivirusTrojan.Win32.Vucha.evdkbu
RisingTrojan.Kryptik!1.AEE5 (CLOUD)
Ad-AwareTrojan.Ransom.Cerber.1
EmsisoftTrojan.Ransom.Cerber.1 (B)
ComodoTrojWare.Win32.Kryptik.FBWM@6gt9t1
F-SecureHeuristic.HEUR/AGEN.1124969
DrWebTrojan.Encoder.4691
ZillyaTrojan.Kryptik.Win32.2371051
TrendMicroRansom_HPCERBER.SMALY5A
McAfee-GW-EditionBehavesLike.Win32.Generic.tm
FireEyeGeneric.mg.ab5988221027fd85
SophosMal/Generic-S
IkarusPUA.Downloader
JiangminTrojan.Vucha.bpc
AviraHEUR/AGEN.1124969
eGambitUnsafe.AI_Score_100%
MicrosoftTrojan:Win32/Yakes.DSP!MTB
ArcabitTrojan.Ransom.Cerber.1
ZoneAlarmHEUR:Trojan.Win32.Vucha.dc
GDataTrojan.Ransom.Cerber.1
CynetMalicious (score: 100)
AhnLab-V3Win-Trojan/Lukitus2.Exp
Acronissuspicious
McAfeePacked-MU!AB5988221027
MAXmalware (ai score=100)
VBA32BScope.Trojan.Skeeyah
MalwarebytesMachineLearning/Anomalous.97%
PandaTrj/GdSda.A
ESET-NOD32a variant of Win32/Kryptik.EYAU
TrendMicro-HouseCallRansom_HPCERBER.SMALY5A
TencentWin32.Trojan.Ransom.Lnob
YandexTrojan.Kryptik!6zuRI9gH5Og
SentinelOneStatic AI – Suspicious PE
FortinetW32/Dridex.DD!tr
BitDefenderThetaAI:Packer.C1D129421F
AVGWin32:Malware-gen
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_100% (W)
Qihoo-360Win32/Trojan.ba4

How to remove Win32/Kryptik.EYAU ransomware?

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.EYAU 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.EYAU 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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