Win32/Kryptik.FKHU

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

What is Win32/Kryptik.FKHU infection?

In this short article you will certainly locate concerning the definition of Win32/Kryptik.FKHU as well as its negative impact on your computer system. Such ransomware are a kind of malware that is clarified by online frauds to require paying the ransom money by a target.

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Most of the situations, Win32/Kryptik.FKHU virus will advise its sufferers to initiate funds move for the objective of reducing the effects of the amendments that the Trojan infection has presented to the target’s gadget.

Win32/Kryptik.FKHU 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.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Attempts to stop active services;
  • 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.
  • Operates on local firewall’s policies and settings;
  • Creates a copy of itself;
  • Attempts to disable UAC.

    User Account Control or just UAC is a part of the Windows security system which prevents apps from making unwanted changes on PC.

    UAC includes several technologies 1:

    • File and egistry Virtualization;
    • Same-desktop Elevation;
    • Filtered Token;
    • User Interface Privilege Isolation;
    • Protected Mode Internet Explorer;
    • Installer Detection;
  • Attempts to disable Windows Defender;
  • Attempts to modify or disable Security Center warnings;
  • Ciphering the records located on the target’s hard disk drive — so the sufferer can no longer use the information;
  • Preventing normal 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.FKHU

One of the most normal networks whereby Win32/Kryptik.FKHU Ransomware are injected are:

  • By means of phishing emails;
  • As a repercussion of individual ending up on a resource that hosts a destructive software application;

As quickly as the Trojan is effectively injected, it will certainly either cipher the data on the victim’s PC or protect against the gadget from functioning in an appropriate manner – while also positioning a ransom note that mentions the demand for the targets to effect the repayment for the purpose of decrypting the documents or bring back the data system back to the preliminary condition. In many instances, the ransom money note will show up when the customer restarts the PC after the system has currently been harmed.

Win32/Kryptik.FKHU distribution networks.

In various edges of the world, Win32/Kryptik.FKHU expands by leaps and also bounds. Nevertheless, the ransom notes and also tricks of extorting the ransom money amount may vary depending on certain local (local) settings. The ransom notes as well as techniques of obtaining the ransom amount might vary depending on particular local (local) setups.

Ransomware injection

For example:

    Faulty alerts regarding unlicensed software program.

    In specific areas, the Trojans frequently wrongfully report having actually spotted some unlicensed applications allowed on the sufferer’s gadget. The sharp after that requires the customer to pay the ransom.

    Faulty declarations concerning unlawful web content.

    In nations where software application piracy is much less popular, this technique is not as efficient for the cyber fraudulences. Additionally, the Win32/Kryptik.FKHU popup alert might falsely assert to be stemming from a law enforcement establishment and will certainly report having located kid porn or various other illegal data on the device.

    Win32/Kryptik.FKHU popup alert might incorrectly claim to be obtaining from a legislation enforcement organization as well as will report having situated child pornography or other unlawful information on the device. The alert will similarly contain a demand for the individual to pay the ransom.

Technical details

File Info:

crc32: 66828125
md5: e971658934a6e574f37cff36a35b3a7d
name: E971658934A6E574F37CFF36A35B3A7D.mlw
sha1: c2945a728386d2c48040602f752086ea095ad0b1
sha256: 49061e09b9780fe2b0c882303718593b02f37b738279d7344f074d3cebe6aa67
sha512: 71578effb98c41cd0c3ec4547033b9ffad7b3d5945e31bb405def5092352dd636076f2205a3aa1d5a534f7edf0644989143c2d1022df3fea2d405b551144c7b8
ssdeep: 6144:ipZ4RUQqaec3WL29o2fggxyl/vD0Rd8BUU7tN2RR0bnJbIVe+iKcLCGzWPUBsbQr:CZ4RUQqaec3WL29o2fgoyl/vD0Ria+NB
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: All rights reserved. Bandisoft
InternalName: Stringarray
FileVersion: 8.3.82.9
CompanyName: Bandisoft
LegalTrademarks: All rights reserved. Bandisoft
Comments: Infinity Ruined Tricky
ProductName: Stringarray
ProductVersion: 8.3.82.9
FileDescription: Infinity Ruined Tricky
OriginalFilename: Stringarray
Translation: 0x0409 0x04b0

Win32/Kryptik.FKHU also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 0056e8f51 )
Elasticmalicious (high confidence)
CynetMalicious (score: 100)
ALYacGen:Variant.Ransom.Troldesh.145
CylanceUnsafe
ZillyaTrojan.Kryptik.Win32.1083538
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_90% (D)
AlibabaRansom:Win32/Foreign.89e8b482
K7GWTrojan ( 0056e8f51 )
Cybereasonmalicious.934a6e
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Kryptik.FKHU
APEXMalicious
AvastWin32:Trojan-gen
KasperskyTrojan-Ransom.Win32.Foreign.nilh
BitDefenderGen:Variant.Ransom.Troldesh.145
NANO-AntivirusTrojan.Win32.RiskGen.ejcrbi
MicroWorld-eScanGen:Variant.Ransom.Troldesh.145
TencentMalware.Win32.Gencirc.114b2cbe
Ad-AwareGen:Variant.Ransom.Troldesh.145
SophosMal/Generic-S
BitDefenderThetaGen:NN.ZexaF.34692.tq0@aech5Vei
VIPRETrojan.Win32.Generic!BT
TrendMicroMal_MiliCry-1c
McAfee-GW-EditionBehavesLike.Win32.Dropper.fc
FireEyeGeneric.mg.e971658934a6e574
EmsisoftGen:Variant.Ransom.Troldesh.145 (B)
SentinelOneStatic AI – Suspicious PE
JiangminTrojan.Foreign.bwz
WebrootW32.Trojan.GenKD
AviraHEUR/AGEN.1128640
eGambitUnsafe.AI_Score_99%
Antiy-AVLTrojan/Generic.ASMalwS.1D679F7
KingsoftWin32.Troj.Undef.(kcloud)
MicrosoftTrojan:Win32/Vigorf.A
ArcabitTrojan.Ransom.Troldesh.145
AegisLabTrojan.Win32.Foreign.j!c
ZoneAlarmTrojan-Ransom.Win32.Foreign.nilh
GDataGen:Variant.Ransom.Troldesh.145
TACHYONRansom/W32.Foreign.321536
AhnLab-V3Trojan/Win32.Foreign.C2114768
Acronissuspicious
McAfeeArtemis!E971658934A6
MAXmalware (ai score=89)
VBA32BScope.TrojanRansom.Foreign
MalwarebytesMachineLearning/Anomalous.100%
PandaTrj/CI.A
TrendMicro-HouseCallMal_MiliCry-1c
RisingRansom.Foreign!8.292 (CLOUD)
YandexTrojan.GenAsa!OWyBnsiDXp8
IkarusVirus.Win32.Ramnit
FortinetW32/Kryptik.FQUM!tr
AVGWin32:Trojan-gen
Paloaltogeneric.ml

How to remove Win32/Kryptik.FKHU 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 GridinSoft3.

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.FKHU 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.FKHU you can always ask me in the comments for getting help.

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References

  1. Microsoft Ignite: How to disable User Account Control (UAC) on Windows Server
  2. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  3. 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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