Win32/Kryptik.GCKU

What is Win32/Kryptik.GCKU infection?

In this short article you will certainly find about the definition of Win32/Kryptik.GCKU as well as its adverse effect on your computer system. Such ransomware are a form of malware that is specified by on-line frauds to require paying the ransom by a target.

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In the majority of the situations, Win32/Kryptik.GCKU virus will certainly instruct its targets to initiate funds move for the objective of counteracting the amendments that the Trojan infection has actually introduced to the sufferer’s device.

Win32/Kryptik.GCKU Summary

These alterations can be as follows:

• 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);
• Attempts to connect to a dead IP:Port (1 unique times);
• 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.
• Detected script timer window indicative of sleep style evasion;
• 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.
• Unconventionial language used in binary resources: Hebrew;
• The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
• A scripting utility was executed;
• Uses Windows utilities for basic functionality;
• 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!
• 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
• Creates a 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 drive — so the target can no more utilize the information;
• Preventing normal 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.GCKU

One of the most typical networks where Win32/Kryptik.GCKU Ransomware Trojans are injected are:

• By ways of phishing e-mails;
• As a consequence of individual ending up on a resource that organizes a destructive software program;

As soon as the Trojan is effectively infused, it will either cipher the data on the victim’s computer or avoid the tool from operating in a correct fashion – while likewise positioning a ransom note that states the requirement for the sufferers to effect the settlement for the purpose of decrypting the papers or restoring the file system back to the first problem. In a lot of instances, the ransom note will turn up when the customer reboots the COMPUTER after the system has currently been damaged.

Win32/Kryptik.GCKU distribution networks.

In different edges of the globe, Win32/Kryptik.GCKU grows by jumps and bounds. Nonetheless, the ransom money notes and also methods of obtaining the ransom amount might vary depending on specific neighborhood (local) setups. The ransom money notes and also methods of extorting the ransom quantity may differ depending on particular regional (local) setups.

For example:

Faulty alerts regarding unlicensed software.

In particular locations, the Trojans usually wrongfully report having spotted some unlicensed applications enabled on the victim’s device. The sharp then demands the user to pay the ransom.

Faulty statements regarding unlawful content.

In nations where software application piracy is much less prominent, this approach is not as effective for the cyber frauds. Additionally, the Win32/Kryptik.GCKU popup alert might wrongly assert to be originating from a police organization as well as will certainly report having located child pornography or other illegal information on the gadget.

Win32/Kryptik.GCKU popup alert may wrongly declare to be deriving from a law enforcement establishment and will report having located kid pornography or other prohibited information on the tool. The alert will similarly consist of a demand for the individual to pay the ransom money.

Technical details

File Info:
crc32: 6057C5ED
md5: a92e3d0b0d7447765b4a135039b00e8a
name: A92E3D0B0D7447765B4A135039B00E8A.mlw
sha1: d631a2ab017648ebf3a7cb8bf6aff0e7ce51fee9
sha256: ab3851b7cb92a54fd07a6fa2cdb56bf1652ca3839b1d70d916602e20ca309765
sha512: ad25506af4e50c849741c1bbb9360d573cde00caaf3b941fc77dda48164094a23f118447261f9fe0379f62fad94c1338aed46f55cac0e607a294adfb1ca4fdd5
ssdeep: 3072:CIV/IiPPK7VAOzTbBlZ3v9UHdzBnnKIn8B86MND+XQ:CA/PK7y6lZ3v98tZV8B8N1+X
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:
LegalCopyright: Copyright (C) 2017, dfmbidboobdb
FileVersion: 6.3.6.8
ProductVersion: 6.3.6.8
Translation: 0x0809 0x04b0

Win32/Kryptik.GCKU also known as:

How to remove Win32/Kryptik.GCKU 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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Download GridinSoft Anti-Malware.

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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.

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.

Press “Install” button.

Once installed, Anti-Malware will automatically run.

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Win32/Kryptik.GCKU 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.

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.

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

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