Win32/Kryptik.HLDH

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

What is Win32/Kryptik.HLDH infection?

In this post you will certainly discover concerning the interpretation of Win32/Kryptik.HLDH as well as its adverse impact on your computer system. Such ransomware are a form of malware that is specified by on the internet frauds to require paying the ransom by a sufferer.

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In the majority of the instances, Win32/Kryptik.HLDH ransomware will instruct its victims to start funds transfer for the purpose of reducing the effects of the changes that the Trojan infection has actually introduced to the victim’s tool.

Win32/Kryptik.HLDH 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);
  • 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.
  • Possible date expiration check, exits too soon after checking local time;
  • 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;
  • 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;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • 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;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • The sample wrote data to the system hosts file.;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the records found on the target’s disk drive — so the target can no more make use of the data;
  • Preventing normal accessibility 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.
Similar behavior
Related domains
z.whorecord.xyzTrojan.Ransom.Stop
a.tomx.xyzTrojan.Ransom.Stop
api.2ip.uaTrojan.Ransom.Stop
asvb.topTrojan.Ransom.Stop
api.faceit.comTrojan.Ransom.Stop

Win32/Kryptik.HLDH

One of the most normal networks where Win32/Kryptik.HLDH Trojans are injected are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As an effect of customer winding up on a source that hosts a destructive software;

As quickly as the Trojan is effectively infused, it will either cipher the data on the sufferer’s PC or prevent the gadget from working in an appropriate way – while also putting a ransom note that mentions the requirement for the sufferers to impact the settlement for the purpose of decrypting the files or bring back the data system back to the preliminary problem. In the majority of instances, the ransom note will turn up when the client reboots the COMPUTER after the system has currently been damaged.

Win32/Kryptik.HLDH distribution networks.

In various edges of the globe, Win32/Kryptik.HLDH expands by leaps and also bounds. However, the ransom money notes and also methods of extorting the ransom amount may differ depending upon certain regional (local) settings. The ransom money notes as well as methods of obtaining the ransom quantity might vary depending on certain regional (regional) setups.

Ransomware injection

For instance:

    Faulty notifies about unlicensed software application.

    In specific areas, the Trojans typically wrongfully report having found some unlicensed applications allowed on the target’s device. The alert after that demands the individual to pay the ransom.

    Faulty statements regarding illegal material.

    In countries where software application piracy is much less popular, this method is not as efficient for the cyber scams. Additionally, the Win32/Kryptik.HLDH popup alert might incorrectly declare to be deriving from a police organization and will report having located child porn or various other unlawful information on the device.

    Win32/Kryptik.HLDH popup alert might incorrectly claim to be obtaining from a regulation enforcement organization as well as will report having located kid pornography or other illegal information on the device. The alert will likewise contain a need for the customer to pay the ransom.

Technical details

File Info:

crc32: FCBD61F2
md5: d5ef5f3b8250f962f987cf93cd7a5d26
name: D5EF5F3B8250F962F987CF93CD7A5D26.mlw
sha1: b64d8dd5bd7fe35fdaac5db7869172437a982388
sha256: bfec64c030ef5eefbcdedf8f1d77ee7e563a68e4c6de47f244f3e91a84c35324
sha512: 3eec9d681a23e7e37df5eaccfd110b6c3e8eca8b9502784c6fc1757981123faac8bf335c03c88cf30e9c63bd32bb1435a816b3c50e32d93c5547d0f26f9db8b4
ssdeep: 24576:9mglL5Dqc0H5GLSp70p0lNkPfqElCpPMQ:9pJLS70pcyfqE4EQ
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.HLDH also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusRiskware ( 0040eff71 )
Elasticmalicious (high confidence)
CynetMalicious (score: 100)
ALYacTrojan.Ransom.Stop
CylanceUnsafe
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (W)
AlibabaTrojan:Win32/Azorult.c8f648b9
K7GWRiskware ( 0040eff71 )
Cybereasonmalicious.5bd7fe
CyrenW32/Kryptik.EFF.gen!Eldorado
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Kryptik.HLDH
APEXMalicious
AvastWin32:CrypterX-gen [Trj]
KasperskyHEUR:Trojan-Ransom.Win32.Stop.gen
BitDefenderTrojan.GenericKD.37015202
MicroWorld-eScanTrojan.GenericKD.37015202
Ad-AwareTrojan.GenericKD.37015202
SophosML/PE-A + Troj/Kryptik-TR
BitDefenderThetaGen:NN.ZexaF.34692.0qW@aOsBl0lG
McAfee-GW-EditionBehavesLike.Win32.Generic.cc
FireEyeGeneric.mg.d5ef5f3b8250f962
EmsisoftTrojan.GenericKD.37015202 (B)
SentinelOneStatic AI – Malicious PE
MicrosoftTrojan:Win32/Azorult.RF!MTB
AegisLabTrojan.Win32.Malicious.4!c
ZoneAlarmHEUR:Trojan-Ransom.Win32.Stop.gen
GDataWin32.Trojan.BSE.18JIJAK
AhnLab-V3CoinMiner/Win.Glupteba.R423653
Acronissuspicious
McAfeeRDN/Generic.grp
MAXmalware (ai score=88)
MalwarebytesTrojan.MalPack.GS
RisingMalware.Obscure/Heur!1.A89F (CLASSIC)
IkarusTrojan-Spy.Win32.Raccoon
FortinetW32/Kryptik.TR!tr
AVGWin32:CrypterX-gen [Trj]
Paloaltogeneric.ml

How to remove Win32/Kryptik.HLDH 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.HLDH 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.HLDH 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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