Worm.Prolaco

What is Worm.Prolaco infection?

In this article you will discover about the definition of Worm.Prolaco as well as its unfavorable effect on your computer. Such ransomware are a type of malware that is clarified by on-line fraudulences to demand paying the ransom money by a target.

In the majority of the situations, Worm.Prolaco virus will certainly instruct its victims to initiate funds move for the purpose of neutralizing the changes that the Trojan infection has actually presented to the sufferer’s device.

Worm.Prolaco Summary

These adjustments can be as follows:

• Injection (inter-process);
• Injection (Process Hollowing);
• 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.;
• 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: Korean;
• 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;
• Executed a process and injected code into it, probably while unpacking;
• Attempts to stop active services;
• 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.
• Attempts to identify installed AV products by installation directory;
• Attempts to identify installed AV products by registry key;
• Operates on local firewall’s policies and settings;
• 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;
• Harvests information related to installed mail clients;
• Attempts to modify or disable Security Center warnings;
• Ciphering the papers found on the target’s hard disk — so the victim can no longer utilize the information;
• Preventing routine accessibility to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Worm.Prolaco

One of the most common networks whereby Worm.Prolaco Trojans are injected are:

• By ways of phishing emails;
• As a repercussion of customer winding up on a resource that holds a destructive software program;

As soon as the Trojan is effectively injected, it will certainly either cipher the data on the target’s PC or avoid the gadget from functioning in a correct way – while likewise placing a ransom money note that discusses the requirement for the targets to impact the payment for the function of decrypting the documents or recovering the file system back to the preliminary problem. In many circumstances, the ransom money note will show up when the customer reboots the PC after the system has currently been damaged.

Worm.Prolaco circulation channels.

In numerous corners of the globe, Worm.Prolaco grows by jumps as well as bounds. However, the ransom notes as well as methods of obtaining the ransom money quantity may vary relying on certain local (local) setups. The ransom money notes and techniques of obtaining the ransom money amount might vary depending on specific regional (regional) settings.

For instance:

Faulty informs about unlicensed software.

In certain areas, the Trojans usually wrongfully report having actually detected some unlicensed applications made it possible for on the target’s gadget. The sharp then requires the individual to pay the ransom.

Faulty statements regarding illegal material.

In countries where software program piracy is less prominent, this approach is not as efficient for the cyber frauds. Additionally, the Worm.Prolaco popup alert might wrongly claim to be originating from a law enforcement organization as well as will certainly report having situated kid porn or various other illegal data on the gadget.

Worm.Prolaco popup alert may falsely declare to be acquiring from a regulation enforcement organization and will certainly report having situated child porn or various other illegal data on the gadget. The alert will likewise have a demand for the user to pay the ransom money.

Technical details

File Info:
crc32: 7DF4F9B9md5: 5b41a093e74a3a88996c965676c1fed0name: 5B41A093E74A3A88996C965676C1FED0.mlwsha1: 8e77ed2590584bd200423ed4695c2ae100070a1fsha256: 7a127473040a724504685cf85256622528e4acfa7ffbbfa1bb315e918fca81aesha512: 32052e69aed3afc7e33339aed897e77bc46e3ea1570720186840b4c1e708f29bbd975d53b2a1df5932a314b4fb19e97c35b96c0e990cc30c136c414508992d5assdeep: 12288:IJjr582Uza0ewFLWCR7ZsLxH8cS81VCC0kODYdp/PfiON9p62v3zGF80LTZSmUvo:I1avFS/j1VrOcGOYe3zGF3XpTzddtype: PE32 executable (GUI) Intel 80386, for MS Windows
Version Info:
LegalCopyright: (C)Microsoft Corporation. All rights reserved.InternalName: Wextract                FileVersion: 6.00.2900.5512 (xpsp.080413-2105)CompanyName: Microsoft CorporationProductName: Microsoft(R) Windows(R) Operating SystemProductVersion: 6.00.2900.5512FileDescription: Win32 Cabinet Self-Extractor                                           OriginalFilename: WEXTRACT.EXE            Translation: 0x0412 0x04b0

Worm.Prolaco also known as:

How to remove Worm.Prolaco 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 Worm.Prolaco you can always ask me in the comments for getting help.

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