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

What is Win32/Kryptik.FOHG infection?

In this article you will certainly discover regarding the meaning of Win32/Kryptik.FOHG and its adverse influence on your computer. Such ransomware are a form of malware that is elaborated by on-line scams to require paying the ransom money by a target.

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Most of the situations, Win32/Kryptik.FOHG infection will certainly instruct its targets to start funds transfer for the purpose of reducing the effects of the modifications that the Trojan infection has presented to the target’s gadget.

Win32/Kryptik.FOHG Summary

These alterations can be as adheres to:

  • 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.
  • Attempts to connect to a dead IP:Port (1 unique times);
  • 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.
  • Attempts to remove evidence of file being downloaded from the Internet;
  • 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;
  • Creates a copy of itself;
  • Appends a known CryptoShield ransomware file extension to files that have been encrypted;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files situated on the target’s hard disk — so the sufferer can no more utilize the information;
  • Preventing routine access to the sufferer’s workstation;


The most regular networks through which Win32/Kryptik.FOHG are injected are:

  • By ways of phishing e-mails;
  • As a consequence of user ending up on a resource that hosts a malicious software;

As soon as the Trojan is efficiently injected, it will certainly either cipher the data on the victim’s computer or stop the gadget from functioning in a proper fashion – while also putting a ransom money note that points out the demand for the victims to impact the payment for the purpose of decrypting the files or restoring the file system back to the initial condition. In a lot of instances, the ransom money note will come up when the client reboots the PC after the system has currently been harmed.

Win32/Kryptik.FOHG distribution channels.

In different edges of the world, Win32/Kryptik.FOHG grows by leaps and also bounds. Nevertheless, the ransom notes and also methods of extorting the ransom money amount may vary depending on particular local (regional) setups. The ransom notes and tricks of obtaining the ransom money quantity might vary depending on certain neighborhood (regional) setups.

Ransomware injection

As an example:

    Faulty informs concerning unlicensed software.

    In specific locations, the Trojans typically wrongfully report having discovered some unlicensed applications allowed on the target’s gadget. The alert then requires the customer to pay the ransom money.

    Faulty statements regarding illegal content.

    In nations where software application piracy is much less prominent, this technique is not as efficient for the cyber fraudulences. Additionally, the Win32/Kryptik.FOHG popup alert may incorrectly assert to be originating from a police establishment as well as will report having situated child pornography or various other illegal information on the device.

    Win32/Kryptik.FOHG popup alert might incorrectly assert to be obtaining from a law enforcement organization as well as will report having located child pornography or various other illegal data on the gadget. The alert will similarly consist of a demand for the individual to pay the ransom money.

Technical details

File Info:

crc32: 64C9D0C6
md5: ca175385bc9639267d6c03603c4360c9
name: CA175385BC9639267D6C03603C4360C9.mlw
sha1: 6599553b6fad9202a279458dda52a4640c3e3fb2
sha256: 55a09a91c36049377ca52dcbec09e2893dc36844b22dfcaee42f2fb3e6bfe738
sha512: 2cc7d2f13a9855c9ec1905d7ebcbf6ddbf05242d3ca027033328fc8615fe195321d12112b44123f1237c4850bc993b91d9f088689dce19340da1d079aa9c76da
ssdeep: 1536:VKO4KnPXGEg52wjfVCegA58OaIBB+LPZ6FzT:ccGEg52wd2IBB+LZKf
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 1998
InternalName: Protected SoftWare
FileVersion: 11, 20, 18, 10
CompanyName: Protected SoftWare
ProductName: Protected SoftWare
ProductVersion: 11, 20, 18, 10
FileDescription: Protected SoftWare
OriginalFilename: Protected SoftWare
Translation: 0x081a 0x036a

Win32/Kryptik.FOHG also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 0056e9111 )
DrWeb Trojan.DownLoader23.56445
Cynet Malicious (score: 100)
ALYac Trojan.Ransom.CryptoShield
Cylance Unsafe
Zillya Trojan.Fury.Win32.174
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_60% (D)
K7GW Trojan ( 0056e9111 )
Cybereason malicious.5bc963
Cyren W32/Filecoder.F.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.FOHG
APEX Malicious
Avast Win32:Trojan-gen
Kaspersky Trojan-Ransom.Win32.Fury.di
BitDefender Gen:Variant.Ransom.HydraCrypt.21
NANO-Antivirus Trojan.Win32.Kryptik.evedtt
SUPERAntiSpyware Ransom.CryptoShield/Variant
MicroWorld-eScan Gen:Variant.Ransom.HydraCrypt.21
Tencent Win32.Trojan.Raas.Auto
Ad-Aware Gen:Variant.Ransom.HydraCrypt.21
Sophos Mal/Generic-S
Comodo Malware@#1bxhpvqcmm2p7
BitDefenderTheta Gen:NN.ZexaF.34692.gu0@aOa!gwoi
VIPRE BehavesLike.Win32.Malware.rwx (mx-v)
TrendMicro Ransom_FURY.F117BF
McAfee-GW-Edition GenericRXDI-NN!CA175385BC96
Emsisoft Trojan-Ransom.Fury (A)
SentinelOne Static AI – Malicious PE
Webroot Trojan.Dropper.Gen
Avira HEUR/AGEN.1113618
eGambit Unsafe.AI_Score_99%
Antiy-AVL Trojan/Generic.ASMalwS.1E838DD
Kingsoft Win32.Heur.KVM003.a.(kcloud)
Microsoft Ransom:Win32/Shieldcrypt.A
AegisLab Trojan.Win32.Generic.4!c
GData Win32.Trojan-Ransom.CryptoShield.A
TACHYON Ransom/W32.CryptoShield.101888
AhnLab-V3 Win-Trojan/CryptoShield.Gen
McAfee GenericRXDI-NN!CA175385BC96
MAX malware (ai score=100)
VBA32 BScope.Trojan.Cosmu
Panda Trj/CI.A
TrendMicro-HouseCall Ransom_FURY.F117BF
Rising Ransom.Fury!8.470A (C64:YzY0OnHYZKowrUEw)
Yandex Trojan.GenAsa!sh4FzkiR6Gk
Ikarus Trojan-Ransom.Shieldcrypt
Fortinet W32/Kryptik.FOHG!tr
AVG Win32:Trojan-gen

How to remove Win32/Kryptik.FOHG 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.FOHG 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.FOHG 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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