.Explorer v1.58 Virus (Remove Ransomware + Restore Files)
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.Explorer v1.58 Virus (Remove Ransomware + Restore Files)

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This blog post is created to help you removeExplorer v1.58 ransomware virus and show you how to restore files encrypted with the .explorer file extension.

A wallpaper with the e-mail [email protected] has started appearing randomly on the computers of victims on different locations. The wallpaper is associated with a ransomware virus, known as Explorer v1.58 and this virus uses the AES encryption algorithm to encode the files on the computers that have been infected by it. The ransomware then drops a ransom note, named READ_IT.txt and just like the wallpaper it demands for victims to make a hefty ransom payoff in order to get their files decrypted.

Threat Summary

NameExplorer v1.58
TypeRansomware
Short DescriptionThe ransomware encrypts files on your computer and changes the wallpaper with instructions to contact an e-mail to make a payment in order to get the files back.td>
SymptomsExplorer ransomware encrypts the files and ads the .explorer file extension to them. Also changes the wallpaper with the image above and drops a ransom note file, named READ_IT.txt.
Distribution MethodSpam Emails, Email Attachments
Detection Tool See If Your System Has Been Affected by Explorer v1.58

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Malware Removal Tool

User ExperienceJoin Our Forum to Discuss Explorer v1.58.
Data Recovery ToolWindows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.

How Does Explorer v1.58 Spread

In order to be widespread and infect the maximum amount of victims, the virus spreads a loader file associated with it’s primary executable, named “explerer.exe” with the following parameters:

The malicious executable of the ransomware virus can enter your computer primarily via spam e-mails. Such messages may advertise a loader that may drop the executable after it was opened. The malicious file may pose as legitimate document, such as Invoice, a receipt or a banking statement of suspicious activity in the banking account. In addition to this a message may come together with the attachment to convince victims in order to open the attachment. Most sophisticated spam mails may even use your name in the e-mail body.

Other methods besides this primary one include the usage of several different types of fake setups, key generators, software activators or other fake software uploaded on shady websites.

Explorer v1.58 Ransomware Analysis

When an infection takes place by the .explorer file virus, the victim may notice a brief slowdown on his computer. At this moment, the explorer virus aims to perform multiple different activities on the computer. One of them may be to begin modifying the primary system processes by injecting malicious code in them. It may attack the user UAC (User Account Control) and via it and other Windows modules obtain administrative permissions. These permissions allow the virus to read and write everything on your infected computer.

After obtaining permissions, the Explorer v1.58 threat may begin to modify the Windows Registry Editor, more specifically attack the following Windows Registry Entries:

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

Among the activity of Explorer v1.58 is to likely delete the backups on your computer including the shadow volume copies. This is achievable by the following administrative Windows Commands:

  • vssadmin.exe
  • bcedit

Among the activity of Explorer v1.58 is to change the wallpaper of the computer infected by it is to drop it’s ransom note and change the wallpaper o the victim’s computer. The ransom note is named READ_IT.txt and has the same message to the message in the wallpaper it changes:

Explorer v1.58 – Encryption Process

After the Explorer v1.58 ransomware has infected your computer, it will use the AES encryption algorithm to render the files on it, non-usable. The algorithm aims to replicate key data from the original file. Explorer v1.58 does not encrypt the whole file, since if it does this to each file, it will take a lot of time for the virus to complete the process. Instead, it only encrypts enough of the files to render them no longer openable. The Explorer virus targets primarily the following file types for the encryption process:

  • Music and other audio file types.
  • Image files.
  • Photoshop documents.
  • Microsoft Office documents.
  • Adobe Reader .PDF files.
  • Virtual Drives.
  • Archives.

After the encryption process has completed the Explorer v1.58 ransomware virus aims to add the .explorer file extension as a suffix to the encrypted files:

Remove Explorer v1.58 and Restore .explorer Files

For the removal process of Explorer ransomware, it is strongly advisable to first back up your encrypted files and then focus on the removal. We advise you to follow the removal instructions below, since they are divided in manual as well as automatic removal instructions. Since manual removal may be a risky process, because Explorer v1.58 may tamper with system files, experts often advise to use a ransomware-specific malware removal tool for safe deletion of all files associated with Explorer v1.58.

Furthermore, if you want to restore files that have been encrypted by the Explorer v1.58 virus, we advise you to follow the alternative instructions in step “2” under “Automatic Removal” below. They are not a direct solution, but are a good temporary choice to recover as many files as you can, while a decrypter for the virus is released, which we will update and link here as soon as it is out.

Note! Your computer system may be affected by Explorer v1.58 and other threats.
Scan Your PC with SpyHunter
SpyHunter is a powerful malware removal tool designed to help users with in-depth system security analysis, detection and removal of threats such as Explorer v1.58.
Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter’s malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.

To remove Explorer v1.58 follow these steps:

1. Boot Your PC In Safe Mode to isolate and remove Explorer v1.58 files and objects
2. Find files created by Explorer v1.58 on your PC

IMPORTANT!
Before starting the Automatic Removal below, please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.

Use SpyHunter to scan for malware and unwanted programs

3. Scan for malware and unwanted programs with SpyHunter Anti-Malware Tool
4. Try to Restore files encrypted by Explorer v1.58

Ventsislav Krastev

Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.

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