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.kroput Files Ransomware Virus – How to Remove It

This article is made with the primary goal in mind to explain to you what is the .kroput file extension virus and how you can remove the Kroput ransomware from your computer, plus how you can try and get .kroput files to work once again.

A new ransomware virus, using the .kroput file extension was recently detected to infect computers silently and then extort victims to pay ransom if they want to use their files once again. The .kroput files virus, also known as Kroput ransomware is the type of virus which uses advanced encryption to hold your files hostage until a ransom has been paid to get them to work. If your computer has been affected by the .kroput files virus, we would strongly recommend that you read this article as it contains more information on the .kroput file ransomware and also aims to show you how you can remove it and try getting your files to work again.

Threat Summary

Name.kroput Files Virus
TypeRansomware, Cryptovirus
Short DescriptionIt’s main goal is to scramble the files on your computer and make it so that they no longer able to be opened.
SymptomsUses the .kroput file extension which is added to the encrypted files. May drop a ransom note on the computers of victims.
Distribution MethodSpam Emails, Email Attachments, Executable files
Detection Tool See If Your System Has Been Affected by .kroput Files Virus

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Malware Removal Tool

User ExperienceJoin Our Forum to Discuss .kroput Files 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.

.kroput Files Virus – How Does It Infect?

Probably one of the main methods that is used for infection with the .kroput ransomware is believed to be via malicious e-mail spam messages. These e-mails often tend to get users to download and start a file that is attached to the e-mails themselves. These files are often disguised as important documents of some sort, such as:

  • An invoice for a purchase.
  • A document for a cancelled order.
  • A file that is a report from a closed bank account.
  • Some type of debt-related document.

The files that are usually used may either be JavaScript (.js) files or Microsoft Word and Adobe Reader documents with malicious macros embedded in them. Either way, the files are often uploaded in an archive and once the user downloads, extracts the file and runs it, infection may immediately commence.

Another method via which infection can commence may be by uploading the virus files of the malware on several different websites that are compromised as well as suspicious sites. On those web locations, crooks may use various different types of methods to disguise the files are legitimate ones. Often criminals use the following files to trick victims into downloading and getting infected with .kroput files virus:

  • Fake installers.
  • Fake cracks.
  • Fraudulent activators for Windows.
  • Fake portable versions of programs.

.kroput File Ransomware – What Does It Do

Once an infection occurs with the .kroput files virus, the ransomware may begin to create files on your computer. The files may often reside in the following Windows directories under different, often random names:

  • %Temp%
  • %AppData%
  • %Roaming%
  • %Local%
  • %LocalLow%

The main malicious file of .kroput files ransomware was detected to have the following identification information:

→ SHA-256:114ccacb7ca57c01f3540611fdf49e68416544da8d8077f5896434a4b71b01dd
Name:updatewin.exe
Size:277.5 KB

In addition to it, since .kroput is a variant of STOP ransomware, the ransom note _readme.txt is also dropped on victimised machines:

ATTENTION!

Don’t worry, you can return all your files!
All your files documents, photos, databases and other important are encrypted with strongest encryption and unique key.
The only method of recovering files is to purchase decrypt tool and unique key for you.
This software will decrypt all your encrypted files.
What guarantees do we give to you?
You can send one of your encrypted file from your PC and we decrypt it for free.
But we can decrypt only 1 file for free. File must not contain valuable information
Don’t try to use third-party decrypt tools because it will destroy your files.
Discount 50% available if you contact us first 72 hours.
—————————————————————————————————————————
To get this software you need write on our e-mail:
blower@firemail.cc
Reserve e-mail address to contact us:
blower@firemail.cc
Your personal ID:
[redacted 43 alphanumeric chars]

In addition to the malicious files created by this ransomware, the .kroput virus may also perform other virus activities as well:

  • Create mutexes on the compromised machine.
  • Check to see if the virus is dropped on a virtual drive or is running on actual PC.
  • Take screenshots on the compromised computer.
  • Log the keystrokes you type.
  • Obtain information about your location(IP) and language.

Furthermore, the .kroput files ransomware may also perform other unwanted activities on the computers that have been compromised by it. One of them is to allegedly create a randomly named registry string on the victimised machines which has data embeded in it that may automatically run the virus files of .kroput ransomware so that the virus runs automatically each time you boot Windows. The keys that are usually used for this purpose are the Run and RunOnce sub-keys in Windows. They have the following location:

→ 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

In addition to this, the .kroput file ransomware could also perform series of other malicious activities on the computers that are infected by it and among them may be to delete the backed up files and shadow copy files on the computers, compromised by it. The outcome of this is for the user to not be able to restore files via Windows Recovery services. To reach its goal, the .kroput files virus may run the following commands as an administrator in Windows Command Prompt:

→ sc stop VVS
sc stop wscsvc
sc stop WinDefend
sc stop wuauserv
sc stop BITS
sc stop ERSvc
sc stop WerSvc
cmd.exe /C bcdedit /set {default} recoveryenabled No
cmd.exe /C bcdedit /set {default} bootstatuspolicy ignoreallfailures
delete shadows [all | volume | oldest | set | id | exposed { | }]

.kroput Files Virus – Encryption

To encrypt files on the computers that have been infected, .kroput files virus may begin to scan for them, based on their file extensions. The following types of files may be encrypted by the .kroput files virus:

→ “PNG .PSD .PSPIMAGE .TGA .THM .TIF .TIFF .YUV .AI .EPS .PS .SVG .INDD .PCT .PDF .XLR .XLS .XLSX .ACCDB .DB .DBF .MDB .PDB .SQL .APK .APP .BAT .CGI .COM .EXE .GADGET .JAR .PIF .WSF .DEM .GAM .NES .ROM .SAV CAD Files .DWG .DXF GIS Files .GPX .KML .KMZ .ASP .ASPX .CER .CFM .CSR .CSS .HTM .HTML .JS .JSP .PHP .RSS .XHTML. DOC .DOCX .LOG .MSG .ODT .PAGES .RTF .TEX .TXT .WPD .WPS .CSV .DAT .GED .KEY .KEYCHAIN .PPS .PPT .PPTX ..INI .PRF Encoded Files .HQX .MIM .UUE .7Z .CBR .DEB .GZ .PKG .RAR .RPM .SITX .TAR.GZ .ZIP .ZIPX .BIN .CUE .DMG .ISO .MDF .TOAST .VCD SDF .TAR .TAX2014 .TAX2015 .VCF .XML Audio Files .AIF .IFF .M3U .M4A .MID .MP3 .MPA .WAV .WMA Video Files .3G2 .3GP .ASF .AVI .FLV .M4V .MOV .MP4 .MPG .RM .SRT .SWF .VOB .WMV 3D .3DM .3DS .MAX .OBJ R.BMP .DDS .GIF .JPG ..CRX .PLUGIN .FNT .FON .OTF .TTF .CAB .CPL .CUR .DESKTHEMEPACK .DLL .DMP .DRV .ICNS .ICO .LNK .SYS .CFG”

After the encryption process is complete, the files have part of their file data replaced with data from the encryption algorithm and they have the .kroput file extension added to them:

Remove .kroput Files Virus and Try Restoring Data

Before proceeding with the removal of .kroput files ransomware, we strongly suggest that you do a fresh backup of your files, just in case.

To remove the files of .kroput ransomware, you can follow the removal steps underneath and use the instructions in them in combination with the information in this article. In addition to this, you can also remove the .kroput ransomware automatically by using an advanced anti-malware program. Such software will save you hours of manual removal time, since it will scan for and remove all malware and unwanted files, belonging to .kroput ransomware in a matter of minutes time.

If you want to try and get files, encrypted by the .kroput file ransomware to work again, we suggest that you see the “Try to restore” step underneath. It contains methods that aim to show you how you can try to go around direct decryption (which is impossible unless you pay ransom) and restore at least some of your files, even though they are not 100% guaranteed to work.

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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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Windows Mac OS X

How to Remove .kroput Files Virus from Windows.


Step 1: Boot Your PC In Safe Mode to isolate and remove .kroput Files 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 .kroput Files 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 .kroput Files 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 .kroput Files 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 .kroput Files 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 .kroput Files Virus.

Ransomware infections and .kroput Files 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:

If the above link does not work for you and your region, try the other two links below, that lead to the same product:

and

2. On the download page, click on the "Download" button:

3. Click on "Save File" button:

4. Accept all agreements and click "Next":

5. After all the "Next" steps, click on "Install" and then wait for the installation to complete:

6. Run the software. Click on the location to scan for missing or deleted files and click on "Scan":

7. Wait for the scan to complete, it may take some time. Be advised that this scan is not 100% guaranteed to recover all files, but it does have some chance to get your data back:


Windows Mac OS X

Get rid of .kroput Files Virus from Mac OS X.


Step 1: Uninstall .kroput Files 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 .kroput Files 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 .kroput Files 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 .kroput Files 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 .kroput Files 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 .kroput Files 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.


Step 2: Scan for and remove .kroput Files Virus files from your Mac

When you are facing problems on your Mac as a result of unwanted scripts and programs such as .kroput Files Virus, the recommended way of eliminating the threat is by using an anti-malware program. Combo Cleaner offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.


Step 3 (Optional): Try to Restore Files Encrypted by .kroput Files Virus on your Mac.

Ransomware for Mac .kroput Files Virus aims to encode all your files using an encryption algorithm which may be very difficult to decode, unless you pay money. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files, but only in some cases. 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 recommended Data Recovery Mac app by clicking on the link underneath:

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