Win32/Kryptik.GDDN

What is Win32/Kryptik.GDDN infection?

In this short article you will certainly locate about the definition of Win32/Kryptik.GDDN and its negative effect on your computer system. Such ransomware are a form of malware that is clarified by on-line fraudulences to demand paying the ransom money by a sufferer.

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In the majority of the instances, Win32/Kryptik.GDDN virus will certainly instruct its victims to initiate funds transfer for the purpose of neutralizing the changes that the Trojan infection has actually introduced to the target’s device.

Win32/Kryptik.GDDN Summary

These alterations can be as adheres to:

  • 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.
  • 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;
  • 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;
  • 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.
  • Ciphering the documents found on the sufferer’s hard disk — so the target can no more use the data;
  • Preventing regular access 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.

Win32/Kryptik.GDDN

One of the most typical networks where Win32/Kryptik.GDDN are injected are:

  • By methods of phishing emails;
  • As an effect of user winding up on a source that organizes a harmful software program;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the data on the victim’s PC or prevent the device from functioning in a correct manner – while additionally positioning a ransom note that states the demand for the targets to impact the repayment for the function of decrypting the records or restoring the file system back to the preliminary condition. In the majority of instances, the ransom note will certainly show up when the client restarts the PC after the system has actually already been damaged.

Win32/Kryptik.GDDN distribution channels.

In various edges of the globe, Win32/Kryptik.GDDN grows by jumps as well as bounds. Nevertheless, the ransom money notes and also tricks of obtaining the ransom money amount may vary depending upon particular regional (regional) settings. The ransom notes and also tricks of obtaining the ransom quantity might differ depending on certain local (regional) setups.

Ransomware injection

As an example:

    Faulty informs about unlicensed software application.

    In specific areas, the Trojans typically wrongfully report having actually detected some unlicensed applications made it possible for on the victim’s gadget. The alert then requires the individual to pay the ransom.

    Faulty declarations concerning unlawful content.

    In countries where software piracy is less preferred, this method is not as effective for the cyber fraudulences. Additionally, the Win32/Kryptik.GDDN popup alert may incorrectly declare to be originating from a law enforcement establishment and will certainly report having situated youngster porn or other unlawful information on the device.

    Win32/Kryptik.GDDN popup alert might incorrectly claim to be deriving from a legislation enforcement establishment as well as will certainly report having located youngster porn or other prohibited data on the device. The alert will likewise have a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: 59E752D9
md5: ce32cd4f95d47865f199a363bf5446b1
name: CE32CD4F95D47865F199A363BF5446B1.mlw
sha1: 0a98ae7570b95d8b9afefc11222e43c827234555
sha256: 7e8c2c9bf20d63146af80e0e67626e0618c6f373f3e6e46cfb1ece17657563aa
sha512: d758ad833dcc4eee1d971db25fd0ac33f6b127239bf360de353247e55f290125434c7c09ee2ff5c1853afecde2e221bb6f30298030ea91fcbf28432a9b32d3b0
ssdeep: 6144:9NUfkbOOj4Oe5zl8UhvngoQQ/JAMRh530fehDNC:9meJj4Oejdg1QxLT5k2hxC
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.GDDN also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 003e58dd1 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.24384
Cynet Malicious (score: 100)
CAT-QuickHeal Trojan.Chapak.ZZ5
ALYac DeepScan:Generic.BrResMon.1.34B06957
Cylance Unsafe
Zillya Trojan.GandCrypt.Win32.79
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Ransom:Win32/Gandcrab.54e85841
K7GW Trojan ( 0056e9401 )
Cybereason malicious.f95d47
Cyren W32/S-ce744902!Eldorado
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GDDN
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Packer.Crypter-6539596-1
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender DeepScan:Generic.BrResMon.1.34B06957
NANO-Antivirus Trojan.Win32.Encoder.eyaicb
ViRobot Trojan.Win32.Ransom.321024
SUPERAntiSpyware Trojan.Agent/Gen-Kryptik
MicroWorld-eScan DeepScan:Generic.BrResMon.1.34B06957
Tencent Malware.Win32.Gencirc.10b672c0
Ad-Aware DeepScan:Generic.BrResMon.1.34B06957
Sophos ML/PE-A + Mal/Kryptik-BT
Comodo TrojWare.Win32.Ransom.GandCrab.A@7jk3ar
BitDefenderTheta Gen:NN.ZexaF.34628.tuW@amxckaai
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_HPGANDCRAB.SMG2
McAfee-GW-Edition BehavesLike.Win32.Generic.fc
FireEye Generic.mg.ce32cd4f95d47865
Emsisoft DeepScan:Generic.BrResMon.1.34B06957 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Generic.cayhn
Avira HEUR/AGEN.1117310
Microsoft Ransom:Win32/Gandcrab.SF!MTB
Arcabit DeepScan:Generic.BrResMon.1.34B06957
AegisLab Trojan.Win32.GandCrypt.j!c
GData DeepScan:Generic.BrResMon.1.34B06957
AhnLab-V3 Win-Trojan/MalPe34.Suspicious.X2029
Acronis suspicious
McAfee Packed-FAG!CE32CD4F95D4
MAX malware (ai score=98)
VBA32 TrojanRansom.GandCrypt
Malwarebytes Trojan.Injector
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom_HPGANDCRAB.SMG2
Rising Malware.Obscure/Heur!1.9E03 (CLOUD)
Yandex Trojan.Nymaim!zp1QANqguJw
Ikarus Trojan-Dropper.Win32.Danabot
MaxSecure Ransomeware.CRAB.gen
Fortinet W32/Kryptik.GLKY!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.GandCrab.HwoCEpsA

How to remove Win32/Kryptik.GDDN 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.GDDN 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.GDDN 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/products/

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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