Win32/Kryptik.FJUR

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

What is Win32/Kryptik.FJUR infection?

In this short article you will find about the meaning of Win32/Kryptik.FJUR as well as its unfavorable effect on your computer. Such ransomware are a kind of malware that is elaborated by online fraudulences to require paying the ransom money by a target.

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In the majority of the cases, Win32/Kryptik.FJUR ransomware will certainly advise its sufferers to initiate funds transfer for the purpose of reducing the effects of the modifications that the Trojan infection has actually presented to the target’s tool.

Win32/Kryptik.FJUR 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.
  • A process attempted to delay the analysis task.;
  • Expresses interest in specific running processes;
  • 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.
  • Uses Windows utilities for basic functionality;
  • Attempts to delete volume shadow copies;
  • Exhibits behavior characteristic of Cerber ransomware;
  • Collects information to fingerprint the system. There are behavioral human characteristics that can be used to digitally identify a person to grant access to systems, devices, or data. Unlike passwords and verification codes, fingerprints are fundamental parts of user’s identities. Among the threats blocked on biometric data processing and storage systems is spyware, the malware used in phishing attacks (mostly spyware downloaders and droppers), ransomware, and Banking Trojans as posing the greatest danger.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files located on the sufferer’s hard drive — so the sufferer can no more utilize the data;
  • Preventing routine accessibility to the victim’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.FJUR

One of the most common channels whereby Win32/Kryptik.FJUR Ransomware Trojans are infused are:

  • By ways of phishing emails;
  • As an effect of user winding up on a source that holds a destructive software application;

As quickly as the Trojan is efficiently infused, it will certainly either cipher the information on the victim’s computer or avoid the device from working in a correct way – while additionally putting a ransom money note that mentions the demand for the victims to effect the payment for the purpose of decrypting the documents or bring back the file system back to the preliminary condition. In the majority of instances, the ransom note will certainly show up when the customer reboots the PC after the system has actually already been damaged.

Win32/Kryptik.FJUR circulation networks.

In numerous edges of the world, Win32/Kryptik.FJUR grows by jumps and also bounds. Nonetheless, the ransom money notes and also tricks of extorting the ransom money amount might vary depending on particular neighborhood (local) settings. The ransom notes and methods of extorting the ransom money amount may differ depending on particular regional (local) settings.

Ransomware injection

As an example:

    Faulty signals about unlicensed software.

    In specific areas, the Trojans typically wrongfully report having discovered some unlicensed applications enabled on the target’s tool. The sharp then requires the user to pay the ransom.

    Faulty statements regarding unlawful material.

    In nations where software piracy is less popular, this technique is not as reliable for the cyber fraudulences. Conversely, the Win32/Kryptik.FJUR popup alert may falsely declare to be deriving from a police establishment as well as will report having situated kid pornography or various other unlawful data on the device.

    Win32/Kryptik.FJUR popup alert might incorrectly declare to be deriving from a regulation enforcement institution and also will certainly report having located child porn or various other unlawful information on the gadget. The alert will likewise consist of a need for the customer to pay the ransom.

Technical details

File Info:

crc32: EE319A44
md5: bf20968e8071cc991cc919b79aeed6b1
name: BF20968E8071CC991CC919B79AEED6B1.mlw
sha1: efc2aa509962125c058c04603544124741c184ed
sha256: a443e24e56178882313cb9d5615e3a8d6f3de58ce75fb16af9ba1725f01297b5
sha512: 774f3781af37ce48d877b0ffd436f25317c86da8ac97513c997ab61cbedf850eab91b6e467efefc2d9ad99ddcee32ccfcd4a28d125bcf949283a26ed9889a7a4
ssdeep: 6144:YHbQ5W8AUzdIbMrSHoATYphTVhpPD+//clbeXAox7nx4b/Ua:YHc5eUzdIbUaoFLTVP0zXAoRnna
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.FJUR also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 005224381 )
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.7074
CynetMalicious (score: 100)
CAT-QuickHealTrojanRansom.Crowti.MUE.A4
ALYacTrojan.Ransom.Cerber.1
CylanceUnsafe
ZillyaTrojan.Kryptik.Win32.972783
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
AlibabaRansom:Win32/generic.ali2000010
K7GWTrojan ( 005224381 )
Cybereasonmalicious.e8071c
BaiduWin32.Trojan.Kryptik.ayf
CyrenW32/S-89c9c00a!Eldorado
SymantecPacked.Generic.459
ESET-NOD32a variant of Win32/Kryptik.FJUR
APEXMalicious
AvastWin32:Malware-gen
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderTrojan.Ransom.Cerber.1
NANO-AntivirusTrojan.Win32.Encoder.evdikv
MicroWorld-eScanTrojan.Ransom.Cerber.1
TencentMalware.Win32.Gencirc.10b671a0
Ad-AwareTrojan.Ransom.Cerber.1
SophosML/PE-A + Mal/Cerber-B
ComodoTrojWare.Win32.Ransom.Cerber.SD@6pf3lx
BitDefenderThetaGen:NN.ZexaF.34608.yqX@aCkcT8hO
VIPRETrojan.Win32.Generic.pak!cobra
TrendMicroRansom_HPCERBER.SM60
McAfee-GW-EditionRansom-Cerber!BF20968E8071
FireEyeGeneric.mg.bf20968e8071cc99
EmsisoftTrojan.Ransom.Cerber.1 (B)
SentinelOneStatic AI – Malicious PE
AviraHEUR/AGEN.1114444
MicrosoftRansom:Win32/Cerber!rfn
AegisLabTrojan.Win32.Generic.4!c
ZoneAlarmTrojan.Win32.Menti.gen
GDataTrojan.Ransom.Cerber.1
AhnLab-V3Win-Trojan/Lukitus2.Exp
Acronissuspicious
McAfeeRansom-Cerber!BF20968E8071
MAXmalware (ai score=100)
VBA32BScope.Trojan.Encoder
MalwarebytesGeneric.Trojan.Malicious.DDS
PandaTrj/GdSda.A
TrendMicro-HouseCallRansom_HPCERBER.SM60
RisingTrojan.Kryptik!1.A706 (CLOUD)
YandexTrojan.GenAsa!VHaY0bW3YJo
IkarusTrojan-Ransom.Cerber
MaxSecureTrojan.Malware.300983.susgen
FortinetW32/Kryptik.HGZD!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml
Qihoo-360Win32/Ransom.Cerber.HxQBpr8A

How to remove Win32/Kryptik.FJUR 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.FJUR 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.FJUR 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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