Trojan.Downloader.Dofoil

What is Trojan.Downloader.Dofoil infection?

In this post you will locate concerning the definition of Trojan.Downloader.Dofoil as well as its unfavorable impact on your computer system. Such ransomware are a form of malware that is elaborated by on-line scams to demand paying the ransom money by a target.

In the majority of the situations, Trojan.Downloader.Dofoil ransomware will advise its sufferers to launch funds transfer for the function of reducing the effects of the changes that the Trojan infection has presented to the target’s tool.

Trojan.Downloader.Dofoil Summary

These modifications 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.
• Attempts to connect to a dead IP:Port (3 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.
• A process attempted to delay the analysis task.;
• Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
• 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.
• 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.
• Detects Sandboxie through the presence of a library;
• Deletes its original binary from disk;
• Attempts to remove evidence of file being downloaded from the Internet;
• Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
• A system process is generating network traffic likely as a result of process injection;
• 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.
• Checks the presence of disk drives in the registry, possibly for anti-virtualization;
• Creates a copy of itself;
• Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
• Ciphering the documents situated on the target’s hard disk drive — so the sufferer can no more make use of 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:RATX-gen [Trj]
  • Ransom:Win32/LockedFile.G!MSR
  • Generik.IMJCMPM

Trojan.Downloader.Dofoil

One of the most typical networks through which Trojan.Downloader.Dofoil Trojans are infused are:

• By means of phishing e-mails;
• As a repercussion of individual winding up on a resource that organizes a malicious software application;

As quickly as the Trojan is effectively injected, it will certainly either cipher the information on the sufferer’s PC or avoid the gadget from operating in a correct way – while additionally putting a ransom money note that discusses the need for the sufferers to impact the repayment for the function of decrypting the papers or recovering the file system back to the initial problem. In a lot of instances, the ransom note will certainly come up when the client reboots the PC after the system has actually currently been damaged.

Trojan.Downloader.Dofoil distribution networks.

In numerous corners of the globe, Trojan.Downloader.Dofoil grows by jumps and bounds. Nevertheless, the ransom notes as well as tricks of extorting the ransom amount may vary depending on particular neighborhood (local) setups. The ransom money notes as well as methods of extorting the ransom amount may differ depending on certain regional (regional) setups.

For instance:

Faulty alerts about unlicensed software program.

In particular locations, the Trojans frequently wrongfully report having identified some unlicensed applications allowed on the victim’s tool. The alert after that requires the customer to pay the ransom.

Faulty declarations about prohibited content.

In countries where software program piracy is less preferred, this method is not as reliable for the cyber frauds. Additionally, the Trojan.Downloader.Dofoil popup alert might falsely assert to be deriving from a law enforcement establishment and will certainly report having situated child porn or other illegal information on the tool.

Trojan.Downloader.Dofoil popup alert may wrongly declare to be obtaining from a regulation enforcement establishment as well as will report having situated kid porn or other prohibited information on the tool. The alert will likewise have a requirement for the customer to pay the ransom money.

Technical details

File Info:
crc32: BBB76C1Dmd5: 2a6734d4d4ba9290ff3309cf6c3275f1name: wp.exesha1: 29b9e9d65275cad1b4b099d92c61a27d2c1b0b7fsha256: 08f442c4d7bcbbfbed9cf39ed382529fdb1368f2cd8e8d88d39a987b566b705asha512: a6db8c638c630673c784da54b67affffa1974e1b6d5d6217cc5964ccf0d03e8460b1c0d52293141fb2237a2c227726e20fae793c78534fe2da46dbf347fa07fessdeep: 768:FrqQ7AmV3rjBkyo1bJke8K9KWowCtwTx93FASDp3jVrzZVv:F33kNBowvF91AcrzZVtype: PE32 executable (GUI) Intel 80386, for MS Windows
Version Info:
0: [No Data]

Trojan.Downloader.Dofoil also known as:

How to remove Trojan.Downloader.Dofoil virus?

The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.">².

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.

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 Trojan.Downloader.Dofoil 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.

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:

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Trojan.Downloader.Dofoil you can always ask me in the comments for getting help.

References

1. GridinSoft Anti-Malware Review from HowToFix site:
2. More information about GridinSoft products: