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

What is Win32/Kryptik.EWAV infection?

In this article you will locate concerning the meaning of Win32/Kryptik.EWAV and its negative influence on your computer. Such ransomware are a kind of malware that is specified by on the internet scams to require paying the ransom money by a victim.

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Most of the cases, Win32/Kryptik.EWAV ransomware will advise its targets to launch funds move for the purpose of reducing the effects of the amendments that the Trojan infection has actually introduced to the sufferer’s tool.

Win32/Kryptik.EWAV Summary

These adjustments can be as complies with:

  • 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.
  • Starts servers listening on :0;
  • 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!
  • 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
  • Ciphering the papers situated on the victim’s hard drive — so the sufferer can no longer make use of the data;
  • Preventing regular accessibility to the victim’s workstation;


The most regular networks whereby Win32/Kryptik.EWAV are injected are:

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

As soon as the Trojan is effectively injected, it will certainly either cipher the data on the target’s computer or stop the tool from operating in an appropriate manner – while also positioning a ransom note that states the requirement for the victims to effect the repayment for the purpose of decrypting the files or restoring the file system back to the first condition. In most instances, the ransom money note will certainly come up when the client reboots the PC after the system has currently been harmed.

Win32/Kryptik.EWAV circulation networks.

In numerous edges of the globe, Win32/Kryptik.EWAV grows by leaps and bounds. Nonetheless, the ransom notes and also methods of extorting the ransom quantity may differ depending upon certain local (local) settings. The ransom money notes and also methods of obtaining the ransom amount might differ depending on specific local (regional) setups.

Ransomware injection

As an example:

    Faulty notifies about unlicensed software.

    In particular locations, the Trojans commonly wrongfully report having detected some unlicensed applications made it possible for on the sufferer’s device. The alert then requires the customer to pay the ransom.

    Faulty statements about illegal content.

    In nations where software piracy is less popular, this approach is not as reliable for the cyber fraudulences. Conversely, the Win32/Kryptik.EWAV popup alert might incorrectly declare to be originating from a police institution and will certainly report having located youngster pornography or various other illegal data on the gadget.

    Win32/Kryptik.EWAV popup alert may wrongly assert to be obtaining from a law enforcement institution and also will certainly report having located child pornography or various other illegal data on the device. The alert will likewise include a need for the user to pay the ransom.

Technical details

File Info:

crc32: B92C30E9
md5: b8e5f7f966fa3d72b4e5f011b6c1cdd6
name: B8E5F7F966FA3D72B4E5F011B6C1CDD6.mlw
sha1: b945cd54453b98448f2a7da3b66c58dc6c9b5ee6
sha256: 69c03cc85027593cd014f90081ea3145fae78297636193df71b8b59e179647f1
sha512: cd7c6a5127252a0b276f18e8c8a00aeff57dbf824b39ff4e71bd17ff948bab8f3fe263b96a8506bc9238a8445097a6484aa5ed424ed6c73ecd041d3911bba0ce
ssdeep: 24576:E7jAFjVnXgqlo2s7eY/YNL7WGvl3OzjzbHoHm2dGF0RRL/L1sgnpep/eH:EnAFjFx0sJL1Q/e
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright xa9. All rights reserved.
InternalName: Msprov
CompanyName: 1BN Software & IT Solutions
LegalTrademarks: Copyright xa9. All rights reserved.
Comments: Disappearing Ipod Laprie Loadimpact Hung
ProductName: Msprov
Languages: English
FileDescription: Disappearing Ipod Laprie Loadimpact Hung
OriginalFilename: Msprov
Translation: 0x0409 0x04b0

Win32/Kryptik.EWAV also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 004ec5b61 )
Elastic malicious (high confidence)
DrWeb BackDoor.DarkVNC.6
McAfee Artemis!B8E5F7F966FA
Cylance Unsafe
Zillya Adware.Foreign.Win32.7
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_80% (D)
Alibaba Ransom:Win32/Foreign.ae55e7e0
K7GW Trojan ( 004ec5b61 )
Cybereason malicious.966fa3
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.EWAV
APEX Malicious
Avast Win32:Trojan-gen
Cynet Malicious (score: 100)
Kaspersky Trojan-Ransom.Win32.Foreign.obcs
BitDefender Gen:Variant.Ransom.Troldesh.187
NANO-Antivirus Trojan.Win32.DarkVNC.fifhck
MicroWorld-eScan Gen:Variant.Ransom.Troldesh.187
Tencent Win32.Trojan.Inject.Auto
Ad-Aware Gen:Variant.Ransom.Troldesh.187
Sophos Mal/Generic-S
BitDefenderTheta Gen:NN.ZexaF.34686.wr0@aW61HZei
Emsisoft Gen:Variant.Ransom.Troldesh.187 (B)
Avira HEUR/AGEN.1121150
eGambit Unsafe.AI_Score_64%
Microsoft Trojan:Win32/Occamy.C
Arcabit Trojan.Ransom.Troldesh.187
AegisLab Trojan.Win32.Foreign.4!c
GData Gen:Variant.Ransom.Troldesh.187
VBA32 BScope.Backdoor.Androm
Panda Trj/GdSda.A
Rising Ransom.Foreign!8.292 (CLOUD)
Yandex Trojan.Foreign!pzVXvTlqvwY
Ikarus Trojan-Ransom.GandCrab
Fortinet W32/Kryptik.GKNI!tr.ransom
AVG Win32:Trojan-gen

How to remove Win32/Kryptik.EWAV 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.EWAV 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.EWAV you can always ask me in the comments for getting help.

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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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