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

What is Win32/Kryptik.HDSD infection?

In this article you will certainly locate regarding the interpretation of Win32/Kryptik.HDSD as well as its unfavorable impact on your computer. Such ransomware are a kind of malware that is specified by on the internet scams to require paying the ransom by a sufferer.

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Most of the cases, Win32/Kryptik.HDSD virus will certainly advise its targets to launch funds move for the objective of neutralizing the modifications that the Trojan infection has actually presented to the target’s device.

Win32/Kryptik.HDSD 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.
  • 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.

  • Performs some HTTP requests;
  • Unconventionial language used in binary resources: Spanish (Guatemala);
  • 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 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!
  • 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
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Creates a slightly modified copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records found on the target’s hard disk — so the target can no more use the information;
  • Preventing regular accessibility to the victim’s workstation;
Similar behavior
Related domains Gandcrab.Ransom.Encrypt.DDS Gandcrab.Ransom.Encrypt.DDS
carder.bit Gandcrab.Ransom.Encrypt.DDS Gandcrab.Ransom.Encrypt.DDS
ransomware.bit Gandcrab.Ransom.Encrypt.DDS


The most typical networks through which Win32/Kryptik.HDSD Ransomware Trojans are infused are:

  • By means of phishing e-mails;
  • As an effect of customer winding up on a source that holds a destructive software application;

As quickly as the Trojan is successfully injected, it will either cipher the data on the victim’s computer or protect against the gadget from functioning in an appropriate way – while also placing a ransom note that discusses the need for the victims to effect the repayment for the purpose of decrypting the records or recovering the documents system back to the preliminary problem. In many circumstances, the ransom note will certainly show up when the client reboots the PC after the system has already been damaged.

Win32/Kryptik.HDSD distribution networks.

In various edges of the world, Win32/Kryptik.HDSD expands by leaps as well as bounds. Nevertheless, the ransom money notes and also methods of obtaining the ransom money amount may differ relying on certain local (local) setups. The ransom notes and also techniques of obtaining the ransom money quantity may differ depending on specific regional (local) setups.

Ransomware injection

For instance:

    Faulty signals about unlicensed software.

    In particular locations, the Trojans commonly wrongfully report having identified some unlicensed applications enabled on the sufferer’s gadget. The sharp then demands the user to pay the ransom.

    Faulty declarations regarding unlawful material.

    In nations where software application piracy is much less prominent, this method is not as efficient for the cyber scams. Alternatively, the Win32/Kryptik.HDSD popup alert may falsely declare to be deriving from a police establishment and will certainly report having situated kid porn or other prohibited data on the device.

    Win32/Kryptik.HDSD popup alert might incorrectly claim to be obtaining from a regulation enforcement organization and will certainly report having situated kid pornography or various other illegal data on the device. The alert will similarly have a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: 73611EAA
md5: 1734cca06b290a4f37d8f3cab230bab3
name: 1734CCA06B290A4F37D8F3CAB230BAB3.mlw
sha1: e042aad4b4b76e8dbfe10d60081bdc0e163de9ef
sha256: 4e0feda54fb64efcdb6a1d3aa263865cc01b996a74f7a3bf58d1d2ae1d3ef9a0
sha512: def57d2b94cfa0f081ff7c58c526d2ad38d5a22a46583452803312e5231be3a72f56d88cf3713a2b13618f34ae19e261a4161fab9980286d5018661d5a80e6b6
ssdeep: 6144:iGGJyHAOpy0h3PruDBHsRR92LfEoBF4kIj:iGfb3TEHshq9b4jj
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2017, svezabpuekb
Translation: 0x0809 0x04b0

Win32/Kryptik.HDSD also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Heur.Mint.Titirez.ry0@LCsM3DVG
CAT-QuickHeal Trojan.Chapak.ZZ5
McAfee Trojan-FPOH!1734CCA06B29
Malwarebytes Gandcrab.Ransom.Encrypt.DDS
VIPRE Trojan.Win32.Generic!BT
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 0053305e1 )
BitDefender Gen:Heur.Mint.Titirez.ry0@LCsM3DVG
K7GW Trojan ( 655333331 )
CrowdStrike win/malicious_confidence_100% (D)
BitDefenderTheta Gen:NN.ZexaF.34590.ry0@aCsM3DVG
Cyren W32/S-91e57f8d!Eldorado
Symantec Packed.Generic.525
APEX Malicious
Avast FileRepMalware
ClamAV Win.Malware.Titirez-6900356-0
Kaspersky HEUR:Trojan.Win32.Generic
Alibaba Trojan:Win32/Gandcrab.ac1ebfe5
NANO-Antivirus Trojan.Win32.Encoder.fcwfae
ViRobot Trojan.Win32.GandCrab.280585.A
AegisLab Trojan.Win32.Generic.4!c
Rising Trojan.Fuerboos!8.EFC8 (TFE:5:lnitVGZMhIU)
Ad-Aware Gen:Heur.Mint.Titirez.ry0@LCsM3DVG
Emsisoft Gen:Heur.Mint.Titirez.ry0@LCsM3DVG (B)
Comodo TrojWare.Win32.Cloxer.AY@7o68fu
F-Secure Heuristic.HEUR/AGEN.1103298
DrWeb Trojan.Encoder.24384
Zillya Trojan.Kryptik.Win32.1462737
TrendMicro Mal_HPGen-37b
McAfee-GW-Edition BehavesLike.Win32.Generic.dc
Sophos Mal/Generic-R + Mal/Agent-AUL
Jiangmin TrojanDropper.Sysn.eha
Avira HEUR/AGEN.1103298
Antiy-AVL Trojan/Win32.Kryptik
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Gen:Heur.Mint.Titirez.ry0@LCsM3DVG
Cynet Malicious (score: 100)
AhnLab-V3 Win-Trojan/Gandcrab02.Exp
Acronis suspicious
VBA32 Malware-Cryptor.Limpopo
ALYac Gen:Heur.Mint.Titirez.ry0@LCsM3DVG
MAX malware (ai score=100)
Panda Trj/Genetic.gen
Zoner Trojan.Win32.81147
ESET-NOD32 a variant of Win32/Kryptik.HDSD
TrendMicro-HouseCall Mal_HPGen-37b
Tencent Malware.Win32.Gencirc.10b9acfd
Yandex Trojan.GenAsa!UyadntvZSLE
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_64%
Fortinet W32/GenKryptik.DWPH!tr
AVG FileRepMalware
Cybereason malicious.06b290
Qihoo-360 Win32/Trojan.Ransom.c5f

How to remove Win32/Kryptik.HDSD 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.HDSD 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Win32/Kryptik.HDSD you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site:
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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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