Ransom:Win32/Dircrypt.A

What is Ransom:Win32/Dircrypt.A infection?

In this article you will find about the interpretation of Ransom:Win32/Dircrypt.A as well as its negative influence on your computer system. Such ransomware are a type of malware that is elaborated by online fraudulences to require paying the ransom money by a victim.

In the majority of the instances, Ransom:Win32/Dircrypt.A infection will instruct its sufferers to start funds transfer for the function of counteracting the changes that the Trojan infection has actually introduced to the victim’s tool.

Ransom:Win32/Dircrypt.A Summary

These modifications can be as follows:

• Injection (inter-process);
• Injection (Process Hollowing);
• 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;
• 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.
• Executed a process and injected code into it, probably while unpacking;
• Attempts to remove evidence of file being downloaded from the Internet;
• 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 hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
• Likely virus infection of existing system binary;
• Operates on local firewall’s policies and settings;
• Creates a copy of itself;
• Attempts to disable UAC.

  User Account Control or just UAC is a part of the Windows security system which prevents apps from making unwanted changes on PC.

  UAC includes several technologies ¹:

  • File and egistry Virtualization;
  • Same-desktop Elevation;
  • Filtered Token;
  • User Interface Privilege Isolation;
  • Protected Mode Internet Explorer;
  • Installer Detection;
• Attempts to disable Windows Defender;
• Attempts to modify or disable Security Center warnings;
• Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
• Ciphering the documents located on the victim’s disk drive — so the victim can no more use 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.

Ransom:Win32/Dircrypt.A

The most typical channels through which Ransom:Win32/Dircrypt.A Ransomware Trojans are infused are:

• By methods of phishing emails;
• As an effect of individual winding up on a resource that holds a harmful software program;

As quickly as the Trojan is successfully infused, it will either cipher the data on the victim’s computer or protect against the device from functioning in a correct fashion – while likewise placing a ransom money note that discusses the need for the sufferers to effect the settlement for the function of decrypting the documents or restoring the file system back to the initial problem. In the majority of instances, the ransom note will certainly show up when the customer reboots the PC after the system has currently been damaged.

Ransom:Win32/Dircrypt.A circulation channels.

In numerous edges of the world, Ransom:Win32/Dircrypt.A grows by leaps as well as bounds. Nevertheless, the ransom notes and techniques of obtaining the ransom money amount may differ depending upon certain regional (regional) settings. The ransom notes and also techniques of extorting the ransom quantity might differ depending on particular regional (local) setups.

As an example:

Faulty notifies concerning unlicensed software.

In specific areas, the Trojans commonly wrongfully report having actually identified some unlicensed applications enabled on the target’s gadget. The sharp then demands the user to pay the ransom money.

Faulty declarations concerning illegal content.

In countries where software piracy is less popular, this approach is not as efficient for the cyber scams. Additionally, the Ransom:Win32/Dircrypt.A popup alert may falsely claim to be originating from a law enforcement establishment and will report having situated youngster pornography or various other unlawful information on the tool.

Ransom:Win32/Dircrypt.A popup alert may wrongly assert to be obtaining from a regulation enforcement institution and will report having situated kid pornography or other unlawful information on the device. The alert will in a similar way have a demand for the user to pay the ransom.

Technical details

File Info:
crc32: B28F9591md5: ab0e35060bafd1d198f409104d89bea6name: AB0E35060BAFD1D198F409104D89BEA6.mlwsha1: a5ba624056e36e89148225939d165d2da874a765sha256: 8c4bbfdc8394adae821f82d41cba5478384401d6762250a0a89cf654ae6716dfsha512: e4ea97e70f2e8c3b0e126f0a78c764a0daaf1ae4e0d1bdf88207031b92507dda1db6bf25a8917f896e099f64fdad84dc2d0875a2b7942e7245ae781a440eb203ssdeep: 6144:Zq5IlpNLcjUe+Co6iLcxZeT59tagKJTp9thFW7Fi9C:ZHlplyV+CobEAIgKf9thWitype: PE32 executable (GUI) Intel 80386, for MS Windows
Version Info:
0: [No Data]

Ransom:Win32/Dircrypt.A also known as:

How to remove Ransom:Win32/Dircrypt.A 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 GridinSoft²

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/Dircrypt.A you can always ask me in the comments for getting help.

1. Microsoft Ignite: How to disable User Account Control (UAC) on Windows Server