Ransom:Win32/GandCrab.B

What is Ransom:Win32/GandCrab.B infection?

In this short article you will certainly find regarding the definition of Ransom:Win32/GandCrab.B as well as its adverse impact on your computer system. Such ransomware are a kind of malware that is specified by online scams to require paying the ransom by a sufferer.

In the majority of the cases, Ransom:Win32/GandCrab.B infection will instruct its targets to start funds transfer for the objective of reducing the effects of the modifications that the Trojan infection has presented to the victim’s gadget.

Ransom:Win32/GandCrab.B 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.
• 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;
• Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
• Ciphering the papers found on the sufferer’s hard drive — so the victim can no more make use of 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

Ransom:Win32/GandCrab.B

The most typical channels where Ransom:Win32/GandCrab.B Trojans are injected are:

• By means of phishing emails;
• As a repercussion of individual winding up on a resource that organizes a malicious software program;

As quickly as the Trojan is effectively infused, it will certainly either cipher the information on the target’s PC or protect against the tool from operating in a correct manner – while likewise putting a ransom note that mentions the demand for the sufferers to impact the settlement for the function of decrypting the records or recovering the file system back to the initial condition. In the majority of instances, the ransom money note will turn up when the customer reboots the COMPUTER after the system has currently been harmed.

Ransom:Win32/GandCrab.B circulation channels.

In different edges of the world, Ransom:Win32/GandCrab.B expands by leaps and bounds. Nevertheless, the ransom notes as well as techniques of obtaining the ransom money quantity may differ depending upon certain local (local) setups. The ransom money notes and also methods of obtaining the ransom money amount might vary depending on certain neighborhood (local) setups.

As an example:

Faulty alerts about unlicensed software program.

In particular locations, the Trojans commonly wrongfully report having actually identified some unlicensed applications made it possible for on the sufferer’s tool. The sharp then requires the customer to pay the ransom money.

Faulty declarations concerning illegal content.

In nations where software application piracy is less preferred, this approach is not as efficient for the cyber frauds. Conversely, the Ransom:Win32/GandCrab.B popup alert might incorrectly declare to be deriving from a police establishment as well as will report having located youngster pornography or other illegal data on the device.

Ransom:Win32/GandCrab.B popup alert might falsely assert to be deriving from a law enforcement organization and will certainly report having situated kid pornography or other illegal information on the device. The alert will similarly include a demand for the user to pay the ransom money.

Technical details

File Info:
crc32: 4EFA77F1md5: d631f9633368c71f23750b5d4a52d2f3name: D631F9633368C71F23750B5D4A52D2F3.mlwsha1: ffbb05240c3b3ee8498580c8e85d204ec24bbbd1sha256: 4e9fb99f16594efd42de57aa0651e56d2451a9155424d5db170462c2de977a6fsha512: 95f762b14228ce6f63ff8f36cb1d54654623b93e02bf07cec45c474aabf88f8d360c58d786fdd1d2efca9622cad6d5cc71ff0771e6b9149907b8ba27bcad4763ssdeep: 6144:D8HHCCm8hhs8UY2IwAG/6y/Gi4yD3Y/A/xn/oVlGGWyoV8:D6HCuhhs8UYV9+Gh+3Y/2ngVlGGWyo+type: PE32 executable (GUI) Intel 80386, for MS Windows
Version Info:
0: [No Data]

Ransom:Win32/GandCrab.B also known as:

How to remove Ransom:Win32/GandCrab.B virus?

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

Run the setup file.

Press “Install” button.

Once installed, Anti-Malware will automatically run.

Wait for the Anti-Malware scan to complete.

Click on “Clean Now”.

Are Your Protected?

If the guide doesn’t help you to remove Ransom:Win32/GandCrab.B you can always ask me in the comments for getting help.