Win32/Kryptik.GDOU

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

What is Win32/Kryptik.GDOU infection?

In this short article you will certainly find regarding the definition of Win32/Kryptik.GDOU as well as its unfavorable influence on your computer. Such ransomware are a type of malware that is elaborated by on the internet scams to require paying the ransom by a sufferer.

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In the majority of the instances, Win32/Kryptik.GDOU infection will certainly instruct its sufferers to initiate funds move for the function of neutralizing the modifications that the Trojan infection has actually introduced to the victim’s tool.

Win32/Kryptik.GDOU 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.
  • A process attempted to delay the analysis task.;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • A process created a hidden window;
  • 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 delete volume shadow copies;
  • 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!
  • Modifies boot configuration settings;
  • 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
  • Exhibits possible ransomware file modification behavior;
  • Likely virus infection of existing system binary;
  • Clears Windows events or logs;
  • Creates a copy of itself;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents found on the sufferer’s hard disk drive — so the victim can no longer use the information;
  • Preventing routine 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.Ransomware.GenericKD.44171144
a.tomx.xyzTrojan.Ransomware.GenericKD.44171144

Win32/Kryptik.GDOU

The most common networks through which Win32/Kryptik.GDOU Trojans are infused are:

  • By means of phishing emails;
  • As an effect of individual ending up on a resource that organizes a destructive software application;

As quickly as the Trojan is efficiently infused, it will either cipher the data on the victim’s computer or protect against the gadget from functioning in an appropriate manner – while likewise putting a ransom money note that mentions the requirement for the sufferers to effect the repayment for the objective of decrypting the records or bring back the documents system back to the preliminary problem. In most instances, the ransom money note will certainly show up when the customer reboots the PC after the system has actually currently been harmed.

Win32/Kryptik.GDOU circulation channels.

In various edges of the world, Win32/Kryptik.GDOU grows by jumps and also bounds. Nonetheless, the ransom notes and also tricks of extorting the ransom money amount may differ relying on certain local (local) setups. The ransom money notes as well as techniques of extorting the ransom money amount might vary depending on particular regional (local) setups.

Ransomware injection

For example:

    Faulty signals concerning unlicensed software.

    In particular areas, the Trojans usually wrongfully report having actually spotted some unlicensed applications allowed on the victim’s device. The alert then requires the user to pay the ransom.

    Faulty declarations about unlawful web content.

    In nations where software piracy is much less popular, this method is not as efficient for the cyber frauds. Alternatively, the Win32/Kryptik.GDOU popup alert might falsely claim to be deriving from a police institution and will report having situated child pornography or various other unlawful information on the tool.

    Win32/Kryptik.GDOU popup alert may wrongly claim to be acquiring from a law enforcement establishment as well as will report having situated kid pornography or other prohibited data on the tool. The alert will in a similar way include a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: EEE97CDF
md5: 299c8c833811ccc9bb7d390382e13a18
name: 299C8C833811CCC9BB7D390382E13A18.mlw
sha1: 11be15bc93f30a49561d50824195f96cdef0f2f1
sha256: 9cc3558054cfa0580e454ecd6c24923177573567c58c1e4002394ab3fdbe24dc
sha512: d725d8c9a5147d00dcd0ea376f2e05b11667c11f09c2961f5b59fbc10cca323eddd0eaeca5e38cddde5d7eb0cd943e7170cfb08b3d4a8a395637172da72cc19e
ssdeep: 24576:u8GsHrSgCEc+9nwn+RRFcCULhTZKWj1N/SDvqan:uGvCEc+9v3FRQTZBhIrqW
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright xa9 1999 - 2014 The Audacity Team
InternalName: Arg
FileVersion: 5.8.2.624
CompanyName: The Audacity Team
FileDescription: 90 Cherry
LegalTrademarks: Copyright xa9 1999 - 2014 The Audacity Team
Comments: 90 Cherry
ProductName: Arg
ProductVersion: 5.8.2.624
PrivateBuild: 5.8.2.624
OriginalFilename: Arg
Translation: 0x0409 0x04b0

Win32/Kryptik.GDOU also known as:

GridinSoftTrojan.Ransom.Gen
K7AntiVirusTrojan ( 005282bd1 )
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.24249
CynetMalicious (score: 99)
ALYacTrojan.Ransomware.GenericKD.44171144
CylanceUnsafe
ZillyaTrojan.Foreign.Win32.58342
SangforRansom.Win32.Foreign.nypn
AlibabaRansom:Win32/Foreign.492a6f78
K7GWTrojan ( 005282bd1 )
Cybereasonmalicious.33811c
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Kryptik.GDOU
APEXMalicious
AvastWin32:Malware-gen
KasperskyTrojan-Ransom.Win32.Foreign.nypn
BitDefenderTrojan.Ransomware.GenericKD.44171144
NANO-AntivirusTrojan.Win32.Encoder.eyikas
MicroWorld-eScanTrojan.Ransomware.GenericKD.44171144
TencentWin32.Trojan.Foreign.Hssy
Ad-AwareTrojan.Ransomware.GenericKD.44171144
SophosMal/Generic-S
BitDefenderThetaGen:NN.ZexaF.34690.pr0@amDCc0ii
VIPRETrojan.Win32.Generic!BT
TrendMicroPossible_HPGen-38
McAfee-GW-EditionBehavesLike.Win32.TrojanAitInject.tc
FireEyeGeneric.mg.299c8c833811ccc9
EmsisoftTrojan.Ransomware.GenericKD.44171144 (B)
WebrootW32.Malware.Gen
AviraTR/AD.MalwareCrypter.ykamn
Antiy-AVLTrojan/Generic.ASMalwS.24AA536
MicrosoftTrojan:Win32/Occamy.B
ArcabitTrojan.Ransomware.Generic.D2A1FF88
AegisLabTrojan.Win32.Foreign.j!c
GDataTrojan.Ransomware.GenericKD.44171144
TACHYONRansom/W32.Foreign.1296896
McAfeeArtemis!299C8C833811
MAXmalware (ai score=95)
VBA32BScope.Trojan.Poweliks
MalwarebytesRansom.Rapid
PandaTrj/CI.A
TrendMicro-HouseCallPossible_HPGen-38
RisingRansom.Foreign!8.292 (CLOUD)
IkarusTrojan.Win32.Krypt
FortinetW32/GenKryptik.BRDD!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml

How to remove Win32/Kryptik.GDOU 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.GDOU 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.GDOU 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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