Win32/Kryptik.FOJV

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

What is Win32/Kryptik.FOJV infection?

In this post you will discover about the interpretation of Win32/Kryptik.FOJV and also its unfavorable impact on your computer. Such ransomware are a type of malware that is elaborated by on the internet fraudulences to require paying the ransom by a sufferer.

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In the majority of the situations, Win32/Kryptik.FOJV infection will instruct its victims to start funds move for the purpose of counteracting the modifications that the Trojan infection has introduced to the sufferer’s gadget.

Win32/Kryptik.FOJV 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.
  • Possible date expiration check, exits too soon after checking local time;
  • At least one IP Address, Domain, or File Name was found in a crypto call;
  • A process created a hidden window;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • Attempts to delete volume shadow copies;
  • 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;
  • Steals private information from local Internet browsers;
  • 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;
  • 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.
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents located on the victim’s hard drive — so the target can no more utilize the information;
  • Preventing routine access to the sufferer’s workstation;

Win32/Kryptik.FOJV

The most normal channels whereby Win32/Kryptik.FOJV Ransomware are injected are:

  • By ways of phishing emails;
  • As a consequence of customer winding up on a resource that hosts a malicious software program;

As soon as the Trojan is effectively infused, it will certainly either cipher the data on the target’s PC or protect against the gadget from working in an appropriate manner – while additionally positioning a ransom note that points out the demand for the targets to impact the payment for the function of decrypting the records or bring back the documents system back to the initial problem. In a lot of instances, the ransom note will turn up when the client restarts the COMPUTER after the system has currently been damaged.

Win32/Kryptik.FOJV circulation networks.

In various corners of the world, Win32/Kryptik.FOJV expands by leaps and also bounds. Nonetheless, the ransom notes and techniques of obtaining the ransom quantity might differ depending upon particular local (local) setups. The ransom money notes and also tricks of obtaining the ransom money quantity might differ depending on certain local (regional) settings.

Ransomware injection

For example:

    Faulty signals about unlicensed software application.

    In particular areas, the Trojans typically wrongfully report having actually discovered some unlicensed applications enabled on the sufferer’s gadget. The alert after that requires the customer to pay the ransom money.

    Faulty declarations regarding illegal material.

    In countries where software piracy is less prominent, this method is not as reliable for the cyber fraudulences. Conversely, the Win32/Kryptik.FOJV popup alert may falsely claim to be originating from a law enforcement institution as well as will report having located youngster porn or various other illegal data on the tool.

    Win32/Kryptik.FOJV popup alert might incorrectly assert to be obtaining from a legislation enforcement institution and will report having situated child porn or various other illegal information on the tool. The alert will similarly contain a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 804301BB
md5: ba4b8b6da93a018a02e625fbdb49a76f
name: BA4B8B6DA93A018A02E625FBDB49A76F.mlw
sha1: 8c08b07134f69a04afae054ec16b56cf108142fb
sha256: ae39b4b2f1c8b97db54ea5ceb5a16fb5f8d3d0c6fdbfea1e292c5f5a17ec9c08
sha512: 81ef87c31e733ad401e235902f035c2fc6996ae0b1094f7d595873800321401b486a77fdb6b8ebf766d572f2a59bea4eaf9734e2ec789171bd82b7814aa9c506
ssdeep: 1536:0qhLYC5qCCywq2sq/FTQWt1CVlQm1XHd:B1xCyl2J9TPQVlN9
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.FOJV also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Sphinx.2
MicroWorld-eScan Trojan.Ransom.BKK
FireEye Generic.mg.ba4b8b6da93a018a
CAT-QuickHeal Ransom.Exxroute.A3
McAfee Ransomware-FMJ!BA4B8B6DA93A
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 005137001 )
BitDefender Trojan.Ransom.BKK
K7GW Trojan ( 0050529f1 )
CrowdStrike win/malicious_confidence_100% (W)
BitDefenderTheta Gen:NN.ZexaF.34590.dmW@aKyFBrii
Cyren W32/Ransom.DC.gen!Eldorado
Symantec Packed.Generic.493
APEX Malicious
Avast Win32:Filecoder-AZ [Trj]
ClamAV Win.Ransomware.Spora-9525060-0
Kaspersky HEUR:Trojan-Ransom.Win32.Spora.vho
Alibaba Ransom:Win32/Spora.3b192345
NANO-Antivirus Trojan.Win32.Spora.elnkby
AegisLab Trojan.Win32.Generic.4!c
Rising Ransom.Cerber!8.3058 (CLOUD)
Ad-Aware Trojan.Ransom.BKK
Emsisoft Trojan.Ransom.BKK (B)
Comodo TrojWare.Win32.Crypt.C@7vajd0
F-Secure Heuristic.HEUR/AGEN.1116787
Baidu Win32.Trojan.Kryptik.bjk
Zillya Trojan.Kryptik.Win32.1325187
TrendMicro Ransom_CERBER.SM37
McAfee-GW-Edition BehavesLike.Win32.Ransomware.qh
Sophos Mal/Generic-R + Mal/Elenoocka-E
Ikarus Trojan.Dalexis
Jiangmin Trojan.Spora.bb
eGambit Unsafe.AI_Score_96%
Avira HEUR/AGEN.1116787
Antiy-AVL Trojan/Win32.AGeneric
Microsoft Ransom:Win32/Spora.A
Arcabit Trojan.Ransom.BKK
ZoneAlarm HEUR:Trojan-Ransom.Win32.Spora.vho
GData Trojan.Ransom.BKK
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.RL_Generic.R299252
Acronis suspicious
VBA32 BScope.TrojanPSW.Papras
ALYac Trojan.Ransom.BKK
MAX malware (ai score=100)
Malwarebytes Ransom.Cerber
Panda Trj/Genetic.gen
ESET-NOD32 a variant of Win32/Kryptik.FOJV
TrendMicro-HouseCall Ransom_CERBER.SM37
Tencent Win32.Trojan.Cerber.Pftb
Yandex Trojan.Kryptik!JlwQl8i6m9A
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.Malware.74649600.susgen
Fortinet W32/Kryptik.GKVH!tr
AVG Win32:Filecoder-AZ [Trj]
Cybereason malicious.da93a0
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Filecoder.HxQBHB4A

How to remove Win32/Kryptik.FOJV 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.FOJV 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.FOJV 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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