Win32/Kryptik.EHIW

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

What is Win32/Kryptik.EHIW infection?

In this article you will find about the meaning of Win32/Kryptik.EHIW and its unfavorable effect on your computer system. Such ransomware are a type of malware that is clarified by on the internet scams to require paying the ransom money by a victim.

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Most of the situations, Win32/Kryptik.EHIW ransomware will instruct its victims to start funds transfer for the purpose of neutralizing the changes that the Trojan infection has actually presented to the target’s device.

Win32/Kryptik.EHIW Summary

These alterations 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Compression (or decompression);
  • 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.
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • A process created a hidden window;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Unconventionial language used in binary resources: Arabic (Libya);
  • Uses Windows utilities for basic functionality;
  • Executed a process and injected code into it, probably while unpacking;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Attempts to delete volume shadow copies;
  • Exhibits behavior characteristic of Alphacrypt/Teslacrypt ransomware;
  • Modifies boot configuration settings;
  • 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
  • Exhibits possible ransomware file modification behavior;
  • Writes a potential ransom message to disk;
  • Attempts to identify installed AV products by registry key;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • Creates a known TeslaCrypt/AlphaCrypt ransomware decryption instruction / key file.;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents located on the sufferer’s hard drive — so the target can no more use the information;
  • 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.EHIW

The most normal channels through which Win32/Kryptik.EHIW are injected are:

  • By ways of phishing e-mails;
  • As a consequence of customer ending up on a resource that holds a malicious software application;

As soon as the Trojan is efficiently injected, it will either cipher the data on the target’s computer or protect against the gadget from functioning in a correct manner – while additionally positioning a ransom money note that states the requirement for the targets to effect the settlement for the objective of decrypting the documents or recovering the file system back to the initial condition. In a lot of circumstances, the ransom money note will come up when the customer reboots the PC after the system has actually already been harmed.

Win32/Kryptik.EHIW distribution channels.

In various corners of the world, Win32/Kryptik.EHIW grows by leaps as well as bounds. Nevertheless, the ransom notes and also tricks of extorting the ransom money quantity might differ relying on specific neighborhood (local) settings. The ransom money notes and methods of extorting the ransom amount might vary depending on certain regional (local) settings.

Ransomware injection

As an example:

    Faulty signals regarding unlicensed software program.

    In certain locations, the Trojans frequently wrongfully report having actually spotted some unlicensed applications allowed on the sufferer’s gadget. The alert after that demands the customer to pay the ransom.

    Faulty declarations regarding prohibited material.

    In nations where software application piracy is much less popular, this technique is not as efficient for the cyber fraudulences. Conversely, the Win32/Kryptik.EHIW popup alert might incorrectly claim to be deriving from a police institution and also will certainly report having located youngster porn or other illegal information on the tool.

    Win32/Kryptik.EHIW popup alert may wrongly assert to be acquiring from a law enforcement institution as well as will certainly report having situated child porn or other prohibited information on the gadget. The alert will likewise consist of a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 1FCB0864
md5: e6197c07acbca5d9e20424f000670f57
name: E6197C07ACBCA5D9E20424F000670F57.mlw
sha1: 924a6fdb9f0974a95cc8748764310ecc9bf28f98
sha256: bde633a8c3879c60458bbda9f2ef98b5e7ad1113c775ef272f652e911f02d6c9
sha512: 33de7f9a0bbb36651d1eae46f23326e575238c86baabe1353027b7a4910b6e5e58a71ddfcebb9836ab893f5c9bc4d33eb0042d5049ffaba25472c86636cec44e
ssdeep: 6144:oZt6XpOxKsGJYasqPPpn6gOcx/DQT5q7NS1qSe7xs0kfG1LUnIDev4y:e6ZOxKxJY6PPhvOcx/DKqo1s1y3g
type: PE32 executable (console) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Undelivered (C) 2014
InternalName: Vegetables
FileDescription: Antedate
OriginalFilename: Titre.exe
CompanyName: iPass Inc

Win32/Kryptik.EHIW also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.3158
Cynet Malicious (score: 100)
ALYac Trojan.Downloader.JSMI
Cylance Unsafe
Zillya Adware.OutBrowse.Win32.80896
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/Kryptik.84653bd7
K7GW Trojan ( 0055dd191 )
K7AntiVirus Trojan ( 0055dd191 )
Baidu Win32.Trojan.Filecoder.k
Symantec Ransom.TeslaCrypt!g1
ESET-NOD32 a variant of Win32/Kryptik.EHIW
APEX Malicious
Avast Win32:TeslaCrypt-CW [Trj]
ClamAV Win.Malware.Agent1749641478/CRDF-1
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Downloader.JSMI
NANO-Antivirus Trojan.Win32.Encoder.dzbbpp
ViRobot Trojan.Win32.TeslaCrypt.Gen.A
MicroWorld-eScan Trojan.Downloader.JSMI
Tencent Malware.Win32.Gencirc.10c4abee
Ad-Aware Trojan.Downloader.JSMI
Sophos ML/PE-A + Mal/Tinba-Y
Comodo Malware@#u1r4rxvf2yu1
BitDefenderTheta Gen:NN.ZexaF.34628.uu0@a0!6EbeG
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CRYPTESLA.YYSIT
McAfee-GW-Edition PWSZbot-FAOI!E6197C07ACBC
FireEye Generic.mg.e6197c07acbca5d9
Emsisoft Trojan.Downloader.JSMI (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Yakes.drj
Avira HEUR/AGEN.1117173
eGambit Unsafe.AI_Score_100%
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Ransom:Win32/Tescrypt!rfn
Arcabit Trojan.Downloader.JSMI
AegisLab Trojan.Win32.Yakes.4!c
GData Trojan.Downloader.JSMI
TACHYON Trojan/W32.Yakes.331776.D
AhnLab-V3 Trojan/Win32.Teslacrypt.R169802
McAfee PWSZbot-FAOI!E6197C07ACBC
MAX malware (ai score=100)
VBA32 Trojan.Yakes
Malwarebytes Malware.Heuristic.1001
Panda Generic Suspicious
TrendMicro-HouseCall Ransom_CRYPTESLA.YYSIT
Rising Trojan.Ransom-Tesla!1.A322 (CLOUD)
Yandex Trojan.Yakes!34DZEZkpydk
Ikarus Trojan.Win32.Crypt
Fortinet W32/Injector.CNTV!tr
AVG Win32:TeslaCrypt-CW [Trj]
Qihoo-360 Win32/TrojanDownloader.Generic.HxQBInMA

How to remove Win32/Kryptik.EHIW 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.EHIW 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.EHIW 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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