Win32/LockScreen.BUE

What is Win32/LockScreen.BUE infection?

In this short article you will find about the interpretation of Win32/LockScreen.BUE as well as its negative impact on your computer system. Such ransomware are a type of malware that is elaborated by online fraudulences to demand paying the ransom by a target.

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Most of the situations, Win32/LockScreen.BUE virus will instruct its sufferers to start funds transfer for the purpose of reducing the effects of the modifications that the Trojan infection has presented to the target’s gadget.

Win32/LockScreen.BUE 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.
• 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.
• Expresses interest in specific running processes;
• The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
• 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.
• Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
• Attempts to disable System Restore. System Restore function – allows you to revert the computer’s state (system files, applications, and system settings) to that of a previous point in time, which can be used to recover after a virus attack.
• 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;
• Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
• Ciphering the documents found on the target’s hard disk — so the sufferer can no longer use the data;
• Preventing routine access 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.

Win32/LockScreen.BUE

One of the most normal networks where Win32/LockScreen.BUE Trojans are injected are:

• By ways of phishing e-mails;
• As an effect of customer ending up on a resource that organizes a malicious software;

As soon as the Trojan is efficiently infused, it will certainly either cipher the data on the victim’s computer or avoid the gadget from functioning in a proper manner – while likewise placing a ransom money note that states the need for the victims to impact the settlement for the purpose of decrypting the files or bring back the documents system back to the preliminary condition. In most circumstances, the ransom money note will show up when the customer restarts the PC after the system has actually currently been damaged.

Win32/LockScreen.BUE distribution channels.

In different edges of the globe, Win32/LockScreen.BUE expands by jumps as well as bounds. However, the ransom money notes and also methods of obtaining the ransom amount might differ depending on certain regional (regional) settings. The ransom notes as well as techniques of extorting the ransom quantity may vary depending on specific neighborhood (regional) setups.

For instance:

Faulty signals about unlicensed software application.

In specific areas, the Trojans often wrongfully report having found some unlicensed applications made it possible for on the victim’s tool. The alert after that requires the individual to pay the ransom money.

Faulty statements about illegal material.

In countries where software program piracy is less prominent, this technique is not as reliable for the cyber fraudulences. Additionally, the Win32/LockScreen.BUE popup alert might wrongly claim to be originating from a law enforcement organization and will report having situated kid pornography or various other illegal information on the tool.

Win32/LockScreen.BUE popup alert might falsely claim to be obtaining from a regulation enforcement institution as well as will report having located youngster pornography or various other prohibited information on the device. The alert will likewise have a demand for the individual to pay the ransom.

Technical details

File Info:
crc32: 427E9D16
md5: 0412cf1201da139d4035b08c80635080
name: 0412CF1201DA139D4035B08C80635080.mlw
sha1: 0cb44c61647f918ae4a97d72d75c0f4f24d8635b
sha256: 1ebef317751dad5c49ce6b90d8a431a945712de1f61871cb0d0c68639413e172
sha512: 791daea5402c8af94d8e328b1c79d8f5bb063fadf6f6667b25225e2d1b786dc690ef23ba9c828179173a422bef846968c1d16e7f7cd13c8f7c1bd256cf85d774
ssdeep: 12288:zecRYLe5NUn7aPMDkd0L1JLacvHysok8QkPOLaOOcHsDiIF:zecOWnEDQgacZo7QVaIa
type: PE32 executable (GUI) Intel 80386, for MS Windows, PECompact2 compressed

Version Info:
InternalName: Screen Locker
FileVersion: 1.0.0.0
ProductName: Screen Locker
ProgramID: Screen.Locker
ProductVersion: 1.0.0.0
FileDescription: Screen Locker
OriginalFilename: Locker.exe
Translation: 0x0409 0x04e4

Win32/LockScreen.BUE also known as:

How to remove Win32/LockScreen.BUE ransomware?

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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There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft³.

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 Win32/LockScreen.BUE 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/LockScreen.BUE you can always ask me in the comments for getting help.

1. Microsoft Ignite: How to disable User Account Control (UAC) on Windows Server
2. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
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