Win32/Kryptik.HDJF

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

What is Win32/Kryptik.HDJF infection?

In this article you will certainly locate regarding the meaning of Win32/Kryptik.HDJF and also its unfavorable effect on your computer system. Such ransomware are a form of malware that is elaborated by on-line frauds to demand paying the ransom money by a victim.

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In the majority of the instances, Win32/Kryptik.HDJF infection will instruct its sufferers to start funds transfer for the function of counteracting the amendments that the Trojan infection has actually introduced to the target’s tool.

Win32/Kryptik.HDJF Summary

These adjustments can be as complies with:

  • 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Compression (or decompression);
  • 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.;
  • 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.

  • A process created a hidden window;
  • Unconventionial language used in binary resources: Sorbian;
  • Uses Windows utilities for basic functionality;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Attempts to delete volume shadow copies;
  • Executed a process and injected code into it, probably while unpacking;
  • Exhibits behavior characteristic of Alphacrypt/Teslacrypt ransomware;
  • 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
  • Writes a potential ransom message to disk;
  • 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 identify installed AV products by registry key;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the records located on the victim’s hard disk — so the sufferer can no longer utilize the information;
  • Preventing normal accessibility to the victim’s workstation;

Win32/Kryptik.HDJF

One of the most normal channels where Win32/Kryptik.HDJF are injected are:

  • By methods of phishing emails;
  • As an effect of individual winding up on a resource that holds a malicious software application;

As quickly as the Trojan is effectively injected, it will either cipher the information on the target’s PC or avoid the tool from working in a proper manner – while also placing a ransom money note that discusses the demand for the targets to effect the payment for the purpose of decrypting the papers or bring back the documents system back to the preliminary condition. In most circumstances, the ransom money note will certainly come up when the client reboots the PC after the system has already been damaged.

Win32/Kryptik.HDJF circulation channels.

In numerous corners of the world, Win32/Kryptik.HDJF grows by leaps as well as bounds. Nonetheless, the ransom money notes and also methods of obtaining the ransom quantity might differ depending upon particular local (local) settings. The ransom money notes as well as techniques of obtaining the ransom quantity might vary depending on certain local (regional) setups.

Ransomware injection

For instance:

    Faulty notifies regarding unlicensed software application.

    In particular locations, the Trojans frequently wrongfully report having actually discovered some unlicensed applications enabled on the target’s tool. The sharp then requires the individual to pay the ransom.

    Faulty statements about unlawful content.

    In nations where software program piracy is less preferred, this approach is not as effective for the cyber fraudulences. Additionally, the Win32/Kryptik.HDJF popup alert may falsely claim to be originating from a police establishment and also will report having situated youngster porn or other unlawful information on the gadget.

    Win32/Kryptik.HDJF popup alert might falsely assert to be deriving from a law enforcement establishment as well as will report having located child porn or various other prohibited data on the gadget. The alert will in a similar way contain a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: 7625833F
md5: 2b5c64d0ae335be2b30de30ed5cf9b71
name: 2B5C64D0AE335BE2B30DE30ED5CF9B71.mlw
sha1: 57a809107f1810a3ed01d4baf09f89a1fb562757
sha256: 33e6272f8a84de06327c40ad72efd8537c82d5f9d86b082ef1f6cfe7031f7c3b
sha512: 96ebf2562a60ef245aea06decf83298979368e4c4dabaa107068e430d7fe86af5f996cfffba95e7f1c5ef411e7d1265d24a84716be63eaedfd48ad3aac4dc4e8
ssdeep: 6144:REAU1eeD624pGSoJDZ2sqIrU5AsZBbgyg4s43yirHwlzKPm:RvU1eeD6282JtOI2D3bzsEHrQBKP
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2011
InternalName: Grandparents
FileVersion: 0.160.149.109
CompanyName: iFinger Ltd.
LegalTrademarks: Isolated
ProductName: Deceived Helicopter
ProductVersion: 0.37.24.214
FileDescription: Fondant Icecold Hated
OriginalFilename: Governorshipl.EXE

Win32/Kryptik.HDJF also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware2
Elasticmalicious (high confidence)
DrWebTrojan.AVKill.60304
CynetMalicious (score: 100)
CAT-QuickHealRansom.Teslacrypt.OL4
ALYacTrojan.TeslaCrypt.Gen.4
CylanceUnsafe
ZillyaTrojan.CryptGen.Win32.1
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
AlibabaTrojan:Win32/Kryptik.e9213923
K7GWTrojan ( 0055dd191 )
K7AntiVirusTrojan ( 0055dd191 )
SymantecTrojan.Gen
ESET-NOD32a variant of Win32/Kryptik.HDJF
APEXMalicious
AvastWin32:Trojan-gen
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderTrojan.TeslaCrypt.Gen.4
NANO-AntivirusVirus.Win32.Gen-Crypt.ccnc
ViRobotTrojan.Win32.TeslaCrypt.Gen.D
SUPERAntiSpywareRansom.TeslaCrypt/Variant
MicroWorld-eScanTrojan.TeslaCrypt.Gen.4
TencentMalware.Win32.Gencirc.10c16e48
Ad-AwareTrojan.TeslaCrypt.Gen.4
SophosML/PE-A + Mal/Ransom-EG
ComodoMalware@#1g3ctnq5e5lsx
BitDefenderThetaGen:NN.ZexaF.34628.wq0@a03hqakO
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_HPCRYPTESLA.SM2
McAfee-GW-EditionRansomware-FFR!2B5C64D0AE33
FireEyeGeneric.mg.2b5c64d0ae335be2
EmsisoftTrojan.TeslaCrypt.Gen.4 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Bitman.pi
WebrootW32.Trojan.TeslaCrypt.Gen
AviraHEUR/AGEN.1113545
eGambitGeneric.Malware
KingsoftWin32.Troj.Undef.(kcloud)
MicrosoftRansom:Win32/Tescrypt.A
ArcabitTrojan.TeslaCrypt.Gen.4
AegisLabTrojan.Win32.Generic.4!c
GDataTrojan.TeslaCrypt.Gen.4
TACHYONRansom/W32.TeslaCrypt.372736.B
AhnLab-V3Win-Trojan/Lockycrypt.Gen
McAfeeRansomware-FFR!2B5C64D0AE33
MAXmalware (ai score=100)
VBA32BScope.Trojan.AVKill
PandaTrj/GdSda.A
TrendMicro-HouseCallRansom_HPCRYPTESLA.SM2
RisingRansom.Tescrypt!8.3AF (CLOUD)
YandexTrojan.Bitman!l5POCTA+24A
IkarusTrojan.Win32.Crypt
FortinetW32/TeslaCrypt.I!tr
AVGWin32:Trojan-gen
Qihoo-360Win32/Ransom.Bitman.HgIASOgA

How to remove Win32/Kryptik.HDJF 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.HDJF 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.HDJF 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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