Win32/Kryptik.GHWH

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

What is Win32/Kryptik.GHWH infection?

In this article you will discover concerning the interpretation of Win32/Kryptik.GHWH and also its unfavorable influence on your computer. Such ransomware are a form of malware that is specified by online frauds to require paying the ransom money by a sufferer.

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In the majority of the instances, Win32/Kryptik.GHWH ransomware will certainly instruct its sufferers to launch funds move for the objective of counteracting the changes that the Trojan infection has presented to the target’s gadget.

Win32/Kryptik.GHWH 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.
  • Possible date expiration check, exits too soon after checking local time;
  • 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;
  • 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 documents situated on the target’s disk drive — so the target can no more utilize the data;
  • Preventing routine accessibility to the sufferer’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.GandCrab.Gen.2
a.tomx.xyzTrojan.Ransom.GandCrab.Gen.2
ipv4bot.whatismyipaddress.comTrojan.Ransom.GandCrab.Gen.2
ns1.wowservers.ruTrojan.Ransom.GandCrab.Gen.2
carder.bitTrojan.Ransom.GandCrab.Gen.2
ns2.wowservers.ruTrojan.Ransom.GandCrab.Gen.2
ransomware.bitTrojan.Ransom.GandCrab.Gen.2

Win32/Kryptik.GHWH

The most typical channels through which Win32/Kryptik.GHWH Ransomware are infused 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 a repercussion of user winding up on a resource that hosts a harmful software application;

As soon as the Trojan is effectively infused, it will certainly either cipher the information on the victim’s PC or stop the tool from working in a proper way – while additionally placing a ransom note that points out the demand for the targets to effect the settlement for the purpose of decrypting the documents or recovering the documents system back to the first problem. In a lot of instances, the ransom money note will come up when the customer restarts the COMPUTER after the system has already been harmed.

Win32/Kryptik.GHWH distribution channels.

In different edges of the world, Win32/Kryptik.GHWH expands by leaps and bounds. However, the ransom money notes and also methods of extorting the ransom amount may vary depending upon certain local (regional) setups. The ransom notes as well as tricks of extorting the ransom quantity might differ depending on specific regional (local) setups.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software.

    In specific locations, the Trojans often wrongfully report having actually spotted some unlicensed applications made it possible for on the sufferer’s tool. The sharp then requires the user to pay the ransom.

    Faulty declarations regarding prohibited material.

    In countries where software application piracy is less prominent, this technique is not as effective for the cyber fraudulences. Additionally, the Win32/Kryptik.GHWH popup alert may wrongly claim to be originating from a law enforcement establishment as well as will report having located youngster porn or other prohibited information on the tool.

    Win32/Kryptik.GHWH popup alert may wrongly claim to be obtaining from a regulation enforcement organization and will certainly report having located youngster pornography or other unlawful data on the gadget. The alert will likewise include a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: E4497638
md5: a64ddf294f7e83535049a4c752eb243a
name: A64DDF294F7E83535049A4C752EB243A.mlw
sha1: 477b9f3e183a3463285e70ad27a24300b9005fde
sha256: 4f3eb5a4631836441bac03edd30192a1f275fbcd1e3fb225651f2c3bf0a48e22
sha512: 842f2415e2264cbe135440ff74cfc46877900f02ee0eb322692ed108b0d430d4f3427d3b1fd756516c844a017245fdfc337c96af201b657ecd77eb6bdc5c9f3a
ssdeep: 6144:OVoWkJntgizTU6dAy7FYDexSkkgOovsWi2T:O4ntD/U8/YDaStgOktT
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

ProductVersion: 10.1.10.11
Translation: 0x0346 0x093e

Win32/Kryptik.GHWH also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
MicroWorld-eScanTrojan.Ransom.GandCrab.Gen.2
FireEyeGeneric.mg.a64ddf294f7e8353
CAT-QuickHealTrojan.Chapak.ZZ5
ALYacTrojan.Ransom.GandCrab.Gen.2
CylanceUnsafe
ZillyaTrojan.GandCrypt.Win32.389
SangforTrojan.Win32.Save.a
K7AntiVirusTrojan ( 00534d7f1 )
BitDefenderTrojan.Ransom.GandCrab.Gen.2
K7GWTrojan ( 00534d7f1 )
Cybereasonmalicious.94f7e8
CyrenW32/S-b8ae1aeb!Eldorado
SymantecPacked.Generic.525
APEXMalicious
AvastWin32:Trojan-gen
ClamAVWin.Packer.Crypter-6539596-1
KasperskyHEUR:Trojan.Win32.Generic
NANO-AntivirusTrojan.Win32.Encoder.fefrqf
ViRobotTrojan.Win32.GandCrab.Gen.A
AegisLabTrojan.Win32.GandCrypt.j!c
TencentMalware.Win32.Gencirc.10b45169
Ad-AwareTrojan.Ransom.GandCrab.Gen.2
TACHYONRansom/W32.GandCrab
EmsisoftTrojan.Ransom.GandCrab.Gen.2 (B)
ComodoTrojWare.Win32.GandCrab.AL@7phhjz
F-SecureHeuristic.HEUR/AGEN.1121531
DrWebTrojan.Encoder.24384
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom.Win32.GANDCRAB.SMLA.hp
McAfee-GW-EditionBehavesLike.Win32.Emotet.dc
SophosML/PE-A + Mal/Agent-AUL
IkarusTrojan-Ransom.GandCrab
JiangminTrojan.GandCrypt.fp
AviraHEUR/AGEN.1121531
Antiy-AVLTrojan[Ransom]/Win32.GandCrypt
MicrosoftTrojan:Win32/Ursnif.KDS!MTB
ArcabitTrojan.Ransom.GandCrab.Gen.2
SUPERAntiSpywareTrojan.Agent/Gen-Kryptik
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataTrojan.Ransom.GandCrab.Gen.2
CynetMalicious (score: 100)
AhnLab-V3Win-Trojan/Gandcrab.Exp
Acronissuspicious
McAfeeTrojan-FPST!A64DDF294F7E
MAXmalware (ai score=100)
VBA32BScope.TrojanPSW.Stealer
MalwarebytesTrojan.MalPack
PandaTrj/Genetic.gen
ESET-NOD32a variant of Win32/Kryptik.GHWH
TrendMicro-HouseCallRansom.Win32.GANDCRAB.SMLA.hp
RisingTrojan.Ursnif!8.A22D (RDMK:cmRtazqLuSIikYin/z2W+9eKjlA9)
YandexTrojan.GenAsa!0bz0dK1mOPc
SentinelOneStatic AI – Malicious PE
MaxSecureRansomeware.CRAB.gen
FortinetW32/GandCrab.C!tr
BitDefenderThetaGen:NN.ZexaF.34590.pu1@a8!dtAeO
AVGWin32:Trojan-gen
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_100% (D)
Qihoo-360HEUR/QVM10.2.2C01.Malware.Gen

How to remove Win32/Kryptik.GHWH ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

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.GHWH 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.GHWH 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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