Win32/Kryptik.FNIF

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

What is Win32/Kryptik.FNIF infection?

In this post you will discover regarding the meaning of Win32/Kryptik.FNIF and also its unfavorable influence on your computer. Such ransomware are a form of malware that is clarified by on-line frauds to demand paying the ransom money by a target.

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In the majority of the instances, Win32/Kryptik.FNIF ransomware will certainly advise its victims to launch funds move for the objective of neutralizing the modifications that the Trojan infection has actually presented to the victim’s device.

Win32/Kryptik.FNIF Summary

These adjustments 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.
  • 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.

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • 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
  • 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.
  • Creates a copy of itself;
  • Ciphering the papers situated on the target’s hard disk drive — so the sufferer can no longer utilize the information;
  • Preventing regular accessibility to the target’s workstation;

Win32/Kryptik.FNIF

One of the most regular channels whereby Win32/Kryptik.FNIF Ransomware Trojans are injected are:

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

As quickly as the Trojan is effectively infused, it will certainly either cipher the information on the sufferer’s computer or prevent the gadget from working in a correct way – while also putting a ransom money note that points out the requirement for the sufferers to effect the repayment for the purpose of decrypting the records or bring back the documents system back to the preliminary condition. In a lot of instances, the ransom money note will certainly come up when the client reboots the PC after the system has actually currently been harmed.

Win32/Kryptik.FNIF distribution channels.

In different corners of the world, Win32/Kryptik.FNIF expands by leaps as well as bounds. Nevertheless, the ransom money notes and also methods of obtaining the ransom money quantity might vary depending on specific regional (local) setups. The ransom money notes and also tricks of obtaining the ransom amount may vary depending on certain regional (regional) setups.

Ransomware injection

As an example:

    Faulty signals about unlicensed software.

    In particular locations, the Trojans often wrongfully report having identified some unlicensed applications allowed on the victim’s tool. The alert then demands the individual to pay the ransom.

    Faulty declarations about unlawful material.

    In nations where software program piracy is less popular, this method is not as reliable for the cyber frauds. Alternatively, the Win32/Kryptik.FNIF popup alert may wrongly declare to be deriving from a law enforcement establishment as well as will certainly report having located child pornography or various other unlawful data on the tool.

    Win32/Kryptik.FNIF popup alert might incorrectly assert to be deriving from a legislation enforcement organization as well as will report having situated kid porn or various other prohibited data on the tool. The alert will similarly include a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: 1A8EC76B
md5: 907342b248dc4f0ad1c79bfa6f7a9754
name: 907342B248DC4F0AD1C79BFA6F7A9754.mlw
sha1: 0dc9ce1701dee9c46c54aa1611cded9bc0ab5572
sha256: 79fb8dff339f1c4f578b9f33a56fc5dba068ee4649c39cd8c57aa37466458891
sha512: 63ab17468bb115b8f9f19cd208f244dc50ba8cf57c50392715fe4ec66f9190689e94851dc36511d1805292bfbae7ffe1dd3b2fdce4339eecc34abcd1c39d1d94
ssdeep: 6144:D7JKd2RJ9ML/qNDUwN9aveJILrWKun3paa6ht6V:DlK4Py/uD/N9awI+v3pwkV
type: MS-DOS executable, MZ for MS-DOS

Version Info:

LegalCopyright: AlekseyPopovv
FileVersion: 2.2.0.9
CompanyName: AlekseyPopovv
ProductName: Poster Designer
ProductVersion: 2.2.0.9
FileDescription: RePack (& Portable) by AlekseyPopovv
Translation: 0x0409 0x04b0

Win32/Kryptik.FNIF also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
MicroWorld-eScan Gen:Variant.Jaiko.1263
FireEye Generic.mg.907342b248dc4f0a
ALYac Gen:Variant.Jaiko.1263
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
AegisLab Trojan.Win32.DarkKomet.lnxL
Sangfor Trojan.Win32.Save.a
K7AntiVirus Riskware ( 0040eff71 )
BitDefender Gen:Variant.Jaiko.1263
K7GW Riskware ( 0040eff71 )
CrowdStrike win/malicious_confidence_60% (D)
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Crusis.dp
NANO-Antivirus Trojan.Win32.Crusis.eiovds
Rising Ransom.FileCryptor!8.1A7 (CLOUD)
Ad-Aware Gen:Variant.Jaiko.1263
Sophos Mal/Generic-S
F-Secure Trojan.TR/AD.Injector.rjxml
DrWeb Trojan.Encoder.3953
TrendMicro Ransom_CRYSIS.F116KL
McAfee-GW-Edition BehavesLike.Win32.Generic.dc
Emsisoft Gen:Variant.Jaiko.1263 (B)
SentinelOne Static AI – Suspicious PE
Webroot W32.Trojan.Gen
Avira TR/AD.Injector.rjxml
eGambit Unsafe.AI_Score_99%
MAX malware (ai score=80)
Antiy-AVL Trojan[Ransom]/Win32.Crusis
Kingsoft Win32.Heur.KVMH008.a.(kcloud)
Microsoft Trojan:Win32/Glupteba!ml
Arcabit Trojan.Jaiko.D4EF
ZoneAlarm Trojan-Ransom.Win32.Crusis.dp
GData Gen:Variant.Jaiko.1263
Cynet Malicious (score: 100)
ESET-NOD32 a variant of Win32/Kryptik.FNIF
Acronis suspicious
McAfee Artemis!907342B248DC
VBA32 BScope.Trojan.Tiggre
Malwarebytes Malware.Heuristic.1003
Panda Trj/CI.A
TrendMicro-HouseCall Ransom_CRYSIS.F116KL
Tencent Win32.Trojan.Crusis.Hrep
Yandex Trojan.Crusis!myOeUAVaToQ
Ikarus Trojan.Win32.Filecoder
Fortinet W32/Crusis.DP!tr
BitDefenderTheta Gen:NN.ZexaF.34608.nmuaaqLyZygi
AVG Win32:Malware-gen
Cybereason malicious.248dc4
Paloalto generic.ml
Qihoo-360 HEUR/QVM18.1.41FF.Malware.Gen

How to remove Win32/Kryptik.FNIF ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

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.FNIF 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.FNIF 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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