Win32/Kryptik.HLDB

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

What is Win32/Kryptik.HLDB infection?

In this article you will certainly discover about the definition of Win32/Kryptik.HLDB and also its unfavorable impact on your computer. Such ransomware are a form of malware that is elaborated by online frauds to demand paying the ransom money by a victim.

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In the majority of the instances, Win32/Kryptik.HLDB virus will instruct its sufferers to launch funds move for the function of neutralizing the modifications that the Trojan infection has introduced to the target’s device.

Win32/Kryptik.HLDB 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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.;
  • A process created a hidden window;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Performs some HTTP requests;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Executed a process and injected code into it, probably while unpacking;
  • Network activity contains more than one unique useragent.;
  • 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 copy of itself;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the records situated on the sufferer’s hard disk — so the victim can no longer use the information;
  • Preventing regular accessibility to the target’s workstation;
Similar behavior
Related domains
api.2ip.ua HEUR:Trojan-Ransom.Win32.Stop.gen
asvb.top HEUR:Trojan-Ransom.Win32.Stop.gen
api.faceit.com HEUR:Trojan-Ransom.Win32.Stop.gen

Win32/Kryptik.HLDB

The most regular networks whereby Win32/Kryptik.HLDB are infused are:

  • By ways of phishing e-mails;
  • As a consequence of customer winding up on a resource that organizes a malicious software program;

As quickly as the Trojan is efficiently injected, it will either cipher the information on the target’s PC or prevent the tool from operating in a proper fashion – while additionally placing a ransom money note that discusses the requirement for the sufferers to impact the settlement for the purpose of decrypting the documents or recovering the file system back to the first problem. In most circumstances, the ransom note will certainly come up when the client reboots the COMPUTER after the system has actually currently been harmed.

Win32/Kryptik.HLDB distribution channels.

In numerous corners of the world, Win32/Kryptik.HLDB expands by leaps as well as bounds. Nevertheless, the ransom notes and tricks of obtaining the ransom quantity may vary relying on certain neighborhood (local) setups. The ransom money notes and also tricks of extorting the ransom quantity may differ depending on particular regional (local) setups.

Ransomware injection

For instance:

    Faulty alerts regarding unlicensed software.

    In specific locations, the Trojans typically wrongfully report having actually found some unlicensed applications enabled on the victim’s device. The sharp then demands the customer to pay the ransom.

    Faulty declarations about unlawful web content.

    In nations where software program piracy is much less prominent, this approach is not as effective for the cyber fraudulences. Additionally, the Win32/Kryptik.HLDB popup alert might wrongly claim to be originating from a police institution and also will certainly report having located youngster porn or other prohibited information on the tool.

    Win32/Kryptik.HLDB popup alert might incorrectly claim to be deriving from a law enforcement institution as well as will certainly report having situated child porn or various other unlawful information on the gadget. The alert will likewise have a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: 7F3E05CD
md5: 94416a8acb50fafc2f5eb356b1409dec
name: 94416A8ACB50FAFC2F5EB356B1409DEC.mlw
sha1: f813ce5c000b25c7ebf0406e2161b50ac188b152
sha256: 122972b10f87102950e2683e2eb7f579332970a376c5027a5e846b8d00c00aaa
sha512: d2bd2d6874aba8419ac6c6afd73f9e841bce737a7ed7e670d9d32ff11e52e11422c13208873d834ce6be897663f85ba6769e82df615356837ed5873084ecf112
ssdeep: 24576:7Dt7Rm6nHjmrbF4N2CBYztXVKL7ddG/I:7dnDMJXCByML73G/I
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

FileVersus: 1.0.98.58
ProductVersus: 1.0.98.58
Translations: 0x0786 0x036f

Win32/Kryptik.HLDB also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/Azorult.f78b400b
K7GW Riskware ( 0040eff71 )
Cybereason malicious.c000b2
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.HLDB
APEX Malicious
Avast FileRepMalware
Kaspersky HEUR:Trojan-Ransom.Win32.Stop.gen
BitDefender Trojan.GenericKD.37010400
ViRobot Trojan.Win32.Z.Agent.867840.CH
MicroWorld-eScan Trojan.GenericKD.37010400
Ad-Aware Trojan.GenericKD.37010400
Sophos Mal/Generic-S + Troj/Kryptik-TR
BitDefenderTheta Gen:NN.ZexaF.34692.0qW@a0xxIJcG
McAfee-GW-Edition BehavesLike.Win32.Generic.cc
FireEye Generic.mg.94416a8acb50fafc
Emsisoft Trojan.GenericKD.37010400 (B)
SentinelOne Static AI – Malicious PE
Webroot W32.Trojan.Gen
eGambit Unsafe.AI_Score_99%
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Trojan:Win32/Azorult.RF!MTB
AegisLab Trojan.Win32.Malicious.4!c
GData Win32.Trojan-Ransom.STOP.HUIRZ1
AhnLab-V3 CoinMiner/Win.Glupteba.R423559
Acronis suspicious
McAfee Artemis!94416A8ACB50
MAX malware (ai score=87)
Malwarebytes Trojan.MalPack.GS
Rising Trojan.Kryptik!1.D63F (CLASSIC)
Ikarus Trojan.Win32.Crypt
Fortinet W32/Kryptik.HLDB!tr
AVG FileRepMalware
Paloalto generic.ml

How to remove Win32/Kryptik.HLDB 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.HLDB 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.HLDB 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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