by Ventsislav Krastev | September 6, 2017 | 0 Comments file-encryption, malware, Pendor ransomware, ransomware

This article has been created to help you remove Pendor ransomware infection from your computer system and restore files encrypted with the added .pnr file extension.

The beginning of September 2017 has brought multiple new ransomware viruses on the block. One such virus is Pendor ransomware. It’s end goal is to encrypt the files on your computer after it has infected it and then demand from you to pay a hefty ransom fee in order to access them again. The virus uses the AES encryption for the files which makes them no longer able to be opened and after encryption, adds the .pnr file extension. If you have been infected by Pendor ransomware, we advise you to read this article thoroughly.

Threat Summary

Name	Pendor
Type	Ransomware, Cryptovirus
Short Description	Aims to encrypt the files on your computer and then demand a hefty ransom “fee” to decrypt them and make them work again.
Symptoms	Attacks the most often used files, they become no longer openable and appends the .pnr file extension.
Distribution Method	Spam Emails, Email Attachments, Executable files
Detection Tool	See If Your System Has Been Affected by malware Download Malware Removal Tool
User Experience	Join Our Forum to Discuss Pendor.
Data Recovery Tool	Windows 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.

Pendor Ransomware – Distribution Methods

In order for this ransomware virus to be spread, the creators of it have used the same strategy as with most ransomware infections out there – malicious e-mail spam. Such spam messages are often sent to unsuspecting victims and their primary purpose is to trick them to open the objects attached to the e-mails. These are usually:

Archives (.zip, .rar) that contain malicious files used for the infection.
Malicious documents that are used to infect a user PC via macros.
Malicious web links which cause drive-by downloads and hence infect.

The infection objects that spread Pendor ransomware are usually accompanied by convincing statement that the attachments or web links are important invoices, bank statements or other such documents.

Pendor Ransomware – More Information

As soon as one becomes infected by this virus, it immediately runs malicious processes in a hidden manner. This results in the virus extracting or downloading it’s files on your computer. They are generally located in the following Windows folders:

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

After the Pendor ransomware drops it’s malicious files, it may also modify the Windows registry editor of the infected computer system. It may use it to modify different actions that the computer performs automatically, like change the wallpaper, force restart the computer and primarily to make it so that it runs automatically on system start. To do this, Pendor ransomware may modify the Run and RunOnce registry sub-keys, adding value strings with data in them that point to the actual location of the file-encryption file on the infected PC. The malicious entries are located in the following sub-keys:

• 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 activity, the Pendor virus may also delete the backups on your computer by using the vssadmin and bcedit commands in Windows Command Prompt without you noticing it:

process call create “cmd.exe /c vssadmin.exe delete shadows /all /quiet & bcdedit.exe /set {default} recoveryenabled no & bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures”

After the virus has done this, it may also drop it’s distinctive ransom note which looks like the following:

The ransom note leads the user to a TOR-based web page which is anonymous and the victim can pay the ransom there in BitCoin. This is an untraceable method often used by cyber-criminals.

Pendor Virus – Encryption Process

For this virus to succeed in encrypting the files and make it very difficult to decrypt them directly, it uses the AES encryption algorithm which translates to Advanced Encryption Standard. This cipher aims to generate a unique decryption key which is asymmetric. This key is known to the cyber-criminals only, making them the sole possessors of your files. They demand $50 in BTC (BitCoin) to be paid to them to give you a crafted decryption software.

The files which are attacked by the Pendor ransomware infection are multiple. The malware primarily targets often used types of files, such as:

Documents.
Pictures.
Music.
Videos.
Audio files.
Often used file types (.pdf, .vmd, etc.).
Other.

Once it has already encrypted the files, Pendor ransomware adds it’s unique file extension to them, making them look like the following:

Pendor Virus – How to Remove and Decrypt Files

The first thing you should do after experiencing an infection by this ransomware virus is to backup all the .pnr encrypted files on a flash drive or somewhere else and create copies of them. After doing so, you can proceed with the removal of this virus. To remove Pendor, you can go ahead and follow the removal instructions down below. They are crafted so that you have the options to remove the virus files and objects manually or automatically. Malware researchers often suggest to use a ransomware-specific removal tool In order to automatically remove all the objects created by Pendor on your computer and secure it against future threats as well.

In order to reverse as much of the damage done by Pendor ransomware as possible, you should try the alternative methods for file recovery below, located in step “2. Restore files encrypted by Pendor”. They are not 100% guarantee you will be able to recover all your data, but aim to help you restore as many files as possible without having to pay the ransom to the cyber-criminals.

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.

How to Remove Pendor from Windows.

Step 1: Boot Your PC In Safe Mode to isolate and remove Pendor

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 Pendor 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 Pendor 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 Pendor 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 Pendor with SpyHunter Anti-Malware Tool

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

Download

Malware Removal Tool

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.

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

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.

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

Step 5 (Optional): Try to Restore Files Encrypted by Pendor.

Ransomware infections and Pendor 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:

EaseUS Data Recovery Software

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 Pendor from Mac OS X.

Step 1: Uninstall Pendor 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 Pendor:

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 Pendor. 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 Pendor. 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 Pendor 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 Pendor. 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 Pendor:

Download

SpyHunter for Mac

Step 3 (Optional): Try to Restore Files Encrypted by Pendor.

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

EaseUS Data Recovery Software

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.

Pendor FAQ

What is Pendor ransomware and how does it work?

Pendor 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 Pendor ransomware infect my computer?

Via several ways.Pendor 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 Pendor 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 .Pendor files?

You can't. At this point the .Pendor 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 .Pendor files successfully, then do not despair, because this virus is still new.

One way to restore files, encrypted by Pendor 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 ".Pendor" files (Other Methods)?

Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .Pendor 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 Pendor 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 Pendor ransomware and then remove it without causing any additional harm to your important .Pendor files.

Also, keep in mind that viruses like Pendor 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.

Pendor Ransomware – Remove and Restore .pnr Files