THREAT REMOVAL

.492 File Virus – Remove and Restore Your Files (GlobeImposter)

Article created to show how to remove the .492 GlobeImposter ransomware virus and then aid with the file recovery process of .492 encrypted files.

Yet another version of the notorious GlobeImposter ransomware has come out in the wild. Similar to the prevous ..726 and .725 file extensions, this infection also uses a 3 digit number for the files it encrypts. The .492 file virus’s main purpose is to encrypt the files on the compromised computer after which extort the victims into paying a hefty ransom fee to get the files back. If you are one of the victims of this ransomware virus, we recommend that you read this article completely and learn how to remove this virus and how to try and get your data back without having to pay a ransom.

Threat Summary

Name.492 File Virus
TypeRansomware, Cryptovirus
Short DescriptionEncrypts the files on the infected computer, displaying a ransom note which aims to extort victims into paying a hefty ransom fee.
SymptomsThe virus encrypts the files, adding the .492 file extension, after which drops a ransom note file, named here_your_files!.html
Distribution MethodSpam Emails, Email Attachments, Executable files
Detection Tool See If Your System Has Been Affected by malware

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Malware Removal Tool

User ExperienceJoin Our Forum to Discuss .492 File Virus.
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 .492 File Virus Infect

The infection process of the .492 ransomware is conducted via e-mail. More specifically, the cyber-criminals who are behind this virus aim to send massive waves of spam e-mails to a pre-configured list of victims to spam. The e-mails pretend to be legitimate payment receipts, however instead of such receipts, the victim opens the infection file of .492 ransomware. Here is one reported case of spam e-mail spreading GlobeImposter ransomware:


Source: Malware-Traffic-Analysis.net

Other form of e-mail spam associated with the .492 globeimposter variants is spreading the malicious file with a blank slate e-mail spam. This means that the message being sent does not contain any topic or text, only the malicious e-mail attachment. The blank slate e-mail spam has been detected by malware researchers to spread the malicious file of .492 ransomware, that has the following details, as reported in VirusTotal:

.492 File Virus – Activity

The .492 ransomware is the type of malware you do not want to have infecting your computer system. After infection it attacks different aspects of Windows, all starting with opening it’s malicious processes that grant it control over your computer. After it has done this, it may use it’s administrative power to perform a series of malicious activities on your computer.

One such activity is to execute a batch file (.bat) that has the following commands within it:

→ @echo off
vssadmin.exe Delete Shadows /All /Quiet
reg delete “HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Default” /va /f
reg delete “HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Servers” /f
reg add “HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Servers”
cd %userprofile%\documents\
attrib Default.rdp -s -h
del Default.rdp
for /F “tokens=*” %1 in (‘wevtutil.exe el’) DO wevtutil.exe cl

The functions of those commands are to heavily modify the Windows Registry Editor with it’s added registry entires in order to automatically execute malicous processes. Another activity from those commands is to delete the Shadow Volume Copies on your computer so that you are unable to restore your files via this method.

One malicious process is reported to have the function, called “CREATE_SUSPENDED”. This function creates suspended processes which are replaced with a malicious code that has previously been extracted.

When this code has previously been extracted, the malicious process’ function is to execute it without you noticing any of this activity. The malicious process may pretend to be a text file, but is actually an executable type of file, hence you may notice it by the double extension – .txt.exe.

The modification, performed by this malicious process, attacks a significant part of Windows, that changes it’s sleep settings. It attacks the Power Options, setting the Windows computer’s Sleep settings to “Never” while the .492 ransomware virus performs it’s malicious activity.

The .492 GlobeImposter virus has also been configured to prevent malware researchers to analyze it while it is running, by encrypting most strings and part of it’s APIs(Application Programming). After having “set up the ground” for the damage it’s about to do, the .492 ransomware variant begins to encrypt the files on the infected computer.

.492 Ransomware – Encryption Analysis

The encryption process of .492 file virus is a very clever one, as the ransomware encrypts only specific files in only specific folders. For starters, the .492 file extension ransomware uses a “White List” or an exclusion list of folders in which it skips encrypting data. These folders are important folders for the proper functioning of the Windows computer after it has encrypted the important files in it. The folders which it has excluded from encryption are the following:

Windows, Microsoft, Microsoft Help, Windows App Certification Kit, Windows Defender, ESET, COMODO, Windows NT, Windows Kits, Windows Mail, Windows Media Player, Windows Multimedia Platform, Windows Phone Kits, Windows Phone Silverlight Kits, Windows Photo Viewer, Windows Portable Devices, Windows Sidebar, WindowsPowerShell, Temp, NVIDIA Corporation, Microsoft.NET, Internet Explorer, Kaspersky Lab, McAfee, Avira, spytech software, sysconfig, Avast, Dr.Web, Symantec, Symantec_Client_Security, system volume information, AVG, Microsoft Shared, Common Files, Outlook Express, Movie Maker, Chrome, Mozilla Firefox, Opera, YandexBrowser, ntldr, Wsus, ProgramData.

While those folders are fortunatey excluded, the .492 ransomware does not have any mercy for files that are audio, video, database, image and other file types. The total file extensions it attacks are 170 and are as reported by Xiaopeng Zhang at Fortinet, the following:

→ .$er .4db .4dd .4d .4mp .abs .abx .accdb .accdc .accde .accdr .accdt .accdw .accft .adn .adp .aft .ahd .alf .ask .awdb .azz .bdb .bib .bnd .bok .btr .cdb .cdb .cdb .ckp .clkw .cma .crd .daconnections .dacpac .dad .dadiagrams .daf .daschema .db .db-shm .db-wa .db2 .db3 .dbc .dbf .dbf .dbk .dbs .dbt .dbv .dbx .dcb .dct .dcx .dd .df1 .dmo .dnc .dp1 .dqy .dsk .dsn .dta .dtsx .dx .eco .ecx .edb .emd .eq .fcd .fdb .fic .fid .fi .fm5 .fmp .fmp12 .fmps .fo .fp3 .fp4 .fp5 .fp7 .fpt .fzb .fzv .gdb .gwi .hdb .his .ib .idc .ihx .itdb .itw .jtx .kdb .lgc .maq .mdb .mdbhtm .mdf .mdn .mdt .mrg .mud .mwb .myd .ndf .ns2 .ns3 .ns4 .nsf .nv2 .nyf .oce .odb .oqy .ora .orx .owc .owg .oyx .p96 .p97 .pan .pdb .pdm .phm .pnz .pth .pwa .qpx .qry .qvd .rctd .rdb .rpd .rsd .sbf .sdb .sdf .spq .sqb .sq .sqlite .sqlite3 .sqlitedb .str .tcx .tdt .te .teacher .tmd .trm .udb .usr .v12 .vdb .vpd .wdb .wmdb .xdb .xld .xlgc .zdb .zdc

After the encryption process has completed, the ransomware virus does not forget to change the default file types to it’s own one, making the files to appear like the following:

The .492 ransomware also does not forget to drop it’s extortion ransom note, named here_your_files!.html:

How to Remove .492 Virus and Recover Files

Before beginning to remove this ransomware virus from your computer, we would suggest to focus on backing up your encrypted files beforehand.

After having backed up all your files, you can proceed with the removal process of .492 ransomware virus by following the removal instructions below. If manual instructions represent a difficulty, the best method to remove .492 ransomware fully, according to experts in the field, is to use a ransomware specific anti-malware software. Such will ensure for a full and safe removal and protect your computer in the future as well.

If you want to restore your files in the event that they have the .492 file extension, we recommend trying out our alternative methods and tools suggested in step “2. Restore files encrypted by .492 File Virus” below. They may not be with 100% success rate but will make sure that you restore as many files as possible.

Avatar

Ventsislav Krastev

Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.

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Attention! SensorsTechForum strongly recommends that all malware victims should look for assistance only by reputable sources. Many guides out there claim to offer free recovery and decryption for files encrypted by ransomware viruses. Be advised that some of them may only be after your money.

As a site that has been dedicated to providing free removal instructions for ransomware and malware since 2014, SensorsTechForum’s recommendation is to only pay attention to trustworthy sources.

How to recognize trustworthy sources:

  • Always check "About Us" web page.
  • Profile of the content creator.
  • Make sure that real people are behind the site and not fake names and profiles.
  • Verify Facebook, LinkedIn and Twitter personal profiles.


OFFER

REMOVE IT NOW (PC)
with Anti-Malware
We recommend you to download SpyHunter and run free scan to remove all virus files on your PC. This saves you hours of time and effort compared to doing the removal yourself.
SpyHunter 5 free remover allows you, subject to a 48-hour waiting period, one remediation and removal for results found. Read EULA and Privacy Policy


Windows Mac OS X

How to Remove .492 File Virus from Windows.


Step 1: Boot Your PC In Safe Mode to isolate and remove .492 File Virus

OFFER

Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter

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

1. Hold Windows key() + R


2. The "Run" Window will appear. In it, type "msconfig" and click OK.


3. Go to the "Boot" tab. There select "Safe Boot" and then click "Apply" and "OK".
Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.


4. When prompted, click on "Restart" to go into Safe Mode.


5. You can recognise Safe Mode by the words written on the corners of your screen.


Step 2: Uninstall .492 File Virus and related software from Windows

Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:


1. Hold the Windows Logo Button and "R" on your keyboard. A Pop-up window will appear.


2. In the field type in "appwiz.cpl" and press ENTER.


3. This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press "Uninstall"
Follow the instructions above and you will successfully uninstall most programs.


Step 3: Clean any registries, created by .492 File Virus on your computer.

The usually targeted registries of Windows machines are the following:

  • 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

You can access them by opening the Windows registry editor and deleting any values, created by .492 File Virus there. This can happen by following the steps underneath:

1. Open the Run Window again, type "regedit" and click OK.


2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.


3. You can remove the value of the virus by right-clicking on it and removing it.
Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.

IMPORTANT!
Before starting "Step 4", 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.

Step 4: Scan for .492 File Virus with SpyHunter Anti-Malware Tool

1. Click on the "Download" button to proceed to SpyHunter's download page.


It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria.


2. After you have installed SpyHunter, wait for it to update automatically.

SpyHunter5-update-2018


3. After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.

SpyHunter5-Free-Scan-2018


4. After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the 'Next' button.

SpyHunter-5-Free-Scan-Next-2018

If any threats have been removed, it is highly recommended to restart your PC.

Step 5 (Optional): Try to Restore Files Encrypted by .492 File Virus.

Ransomware infections and .492 File Virus aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the reccomended Data Recovery software by clicking on the link underneath:

Simply click on the link and on the website menus on top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.


Windows Mac OS X

Get rid of .492 File Virus from Mac OS X.


Step 1: Uninstall .492 File Virus and remove related files and objects

OFFER
Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your Mac with SpyHunter for Mac
Keep in mind, that SpyHunter for Mac needs to purchased to remove the malware threats. Click on the corresponding links to check SpyHunter’s EULA and Privacy Policy


1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:


2. Find Activity Monitor and double-click it:


3. In the Activity Monitor look for any suspicious processes, belonging or related to .492 File Virus:

Tip: To quit a process completely, choose the “Force Quit” option.


4. Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.


5. In the Applications menu, look for any suspicious app or an app with a name, similar or identical to .492 File Virus. If you find it, right-click on the app and select “Move to Trash”.


6: Select Accounts, after which click on the Login Items preference. Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to .492 File Virus. Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.


7: Remove any left-over files that might be related to this threat manually by following the sub-steps below:

  • Go to Finder.
  • In the search bar type the name of the app that you want to remove.
  • Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
  • If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.

In case you cannot remove .492 File Virus via Step 1 above:

In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:

Disclaimer! If you are about to tamper with Library files on Mac, be sure to know the name of the virus file, because if you delete the wrong file, it may cause irreversible damage to your MacOS. Continue on your own responsibility!

1: Click on "Go" and Then "Go to Folder" as shown underneath:

2: Type in "/Library/LauchAgents/" and click Ok:

3: Delete all of the virus files that have similar or the same name as .492 File Virus. If you believe there is no such file, do not delete anything.

You can repeat the same procedure with the following other Library directories:

→ ~/Library/LaunchAgents
/Library/LaunchDaemons

Tip: ~ is there on purpose, because it leads to more LaunchAgents.


Click the button below below to download SpyHunter for Mac and scan for .492 File Virus:


Download

SpyHunter for Mac



Step 3 (Optional): Try to Restore Files Encrypted by .492 File Virus.

Ransomware infections and .492 File Virus aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the reccomended Data Recovery software by clicking on the link underneath:

Simply click on the link and on the website menus on top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.


.492 File Virus FAQ

What is .492 File Virus ransomware and how does it work?

.492 File Virus is a ransomware infection - the malicious software that enters your computer silently and blocks either access to the computer itself or encrypt your files.

Many ransomware viruses use sophisticated encryption algorithm how to make your files inaccessible. The goal of ransomware infections is to demand that you pay a ransom payment to get access to your files back.

How does .492 File Virus ransomware infect my computer?

Via several ways..492 File Virus Ransomware infects computers by being sent via phishing e-mails, containing virus attachment.

This attachment is usually masked as an important document, like an invoice, bank document or even a plane ticket and it looks very convincing to users.

After you download and execute this attachment, a drive-by download occurs and your computer is infected with the ransomware virus.

Another way, you may become a victim of .492 File Virus is if you download a fake installer, crack or patch from a low reputation website or if you click on a virus link. Many users report getting a ransomware infection by downloading torrents.

How to open ..492 File Virus files?

You can't. At this point the ..492 File Virus files are encrypted. You can only open them once they are decrypted.

Decryptor did not decrypt my data. What now?

Do not panic and backup the files. If a decryptor did not decrypt your ..492 File Virus files successfully, then do not despair, because this virus is still new.

One way to restore files, encrypted by .492 File Virus ransomware is to use a decryptor for it. But since it's a new virus, advised that the decryption keys for it may not be out yet and available to the public. We will update this article and keep you posted as soon as this decryptor is released.

How Do I restore "..492 File Virus" files (Other Methods)?

Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore ..492 File Virus files.

These methods are in no way 100% guarantee that you will be able to get your files back. But if you have a backup, your chances of success are much greater.

How do I get rid of .492 File Virus ransomware virus?

The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti malware software. It will scan for and locate .492 File Virus ransomware and then remove it without causing any additional harm to your important ..492 File Virus files.

Also, keep in mind that viruses like .492 File Virus ransomware also install Trojans and keyloggers that can steal your passwords and accounts. Scanning your computer with an anti-malware software will make sure that all of these virus components are removed and your computer is protected in the future.

What to Do If nothing works?

There is still a lot you can do. If none of the above methods seem to work for you, then try these methods:

  • Try to find a safe computer from where you can can login on your own line accounts like One Drive, iDrive, Google Drive and so on.
  • Try to contact your friends, relatives and other people so that they can check if they have some of your important photos or documents just in case you sent them.
  • Also, check if some of the files that were encrypted it can be re-downloaded from the web.
  • Another clever way to get back some of your files is to find another old computer, a flash drive or even a CD or a DVD where you may have saved your older documents. You might be surprised what will turn up.
  • You can also go to your email account to check if you can send any attachments to other people. Usually what is sent the email is saved on your account and you can re-download it. But most importantly, make sure that this is done from a safe computer and make sure to remove the virus first.

More tips you can find on our forums, where you can also asks any questions about your ransomware problem.

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