.promoz Files Virus – How to Remove It

.promoz Files Virus – How to Remove It

This article has been created with the main idea to help explain what is the .promoz file ransomware, how to remove it from your computer and how you can try and restore files, encrypted by it.

Yet another variant of the STOP/Djvu ransomware strain was detected by malware researcher Michael Gillespie (@demonslay335). The ransomware is an evolved variant of the previously detected

.promos ransomware virus and the main idea of those is that this infection encrypts your files and makes them unable to be opened, until you pay ransom in order to get them to work once more. In case your computer has been infected by the .promoz file ransomware, we recommend that you read this article thoroughly.

Threat Summary

Name.promoz File Ransomware
TypeRansomware, Cryptovirus
Short DescriptionHas the main goal of encrypting your files so that you can no longer use them and then asks you to pay ransom in order to get them to work again.
SymptomsFiles are encrypted with the added .promoz file extension. A ransom note, called _readme.txt with the e-mail blower@firemail.cc appears.
Distribution MethodSpam Emails, Email Attachments, Executable files
Detection Tool See If Your System Has Been Affected by .promoz File Ransomware


Malware Removal Tool

User ExperienceJoin Our Forum to Discuss .promoz File Ransomware.
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.

.promoz Ransomware – Distribution Tactics

The .promoz file ransomware may be distributed via multiple different ways and among those two primary types exist:

  • Infection via a malicious file.
  • Infection via malicious URL.

The infection process via malicious files can be conducted via e-mail messages that may be sent to victims, carrying the malicious attachments, similar to what the image below shows;

The e-mails may pretend to carry important types of documents such as invoices or receipts of purchases and these documents often turn out to contain malicious macros that cause the infection once you enable the content on the documents.

In addition to this, other types of files may also be used to infect victims, when they randomly browse the web to download something they are looking for. These types of files usually pretend to be:

  • Setups of programs.
  • Portable executable files of programs.
  • Cracks.
  • Patches.
  • Activation programs.
  • Key generators.

In addition to malicious files, your computer may also become a victim of .promoz ransomware as a result of malicious web links that may contain JavaScript or other type of auto-execute scripts and simply visiting the web link can comrpomise you. These types of links are many and it is very difficult to predict an infection of this type, so an anti-malware protection with web shield should be used for future prevention.

.promoz Files Virus – Activity

When an infection with the .promoz ransomware takes place on your computer, the ransomware may drop it’s virus files in the following Windows directories:

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

The behaviour is very similar to other variants of the same ransomware family as .promoz ransomware is and that is the variants of the STOP/DJVU ransomware family, linked below:

After dropping the malicious files on the computers infected by it, the .promoz ransomware may also leave its extortionist message, called _readme.txt. It has the following note:

———————————————- ALL YOUR FILES ARE ENCRYPTED ———————————————–

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:
Reserve e-mail address to contact us:
Your personal ID:
[redacted 43 alphanumeric chars]

After this version of STOP ransomware has already infected computers, it may also begin to generate mutexes and interfere with multiple different Windows system and DLL files. This is done in order for the .promoz ransomware to obtain rights as an administrator on the comrpomised computer. The virus may use those rights not only for the encryption, but to also create registry value strings with the following data in them:

→ HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run

The registry entries that are dropped there may have data pointing out to auto running the malicious files of .promoz ransomware each time you start Windows, so that the virus is able to re-encrypt any newly added files.

In addition to this, the ransomware virus may also run several commands as an administrator in Windows Command prompt in /quiet mode so that you do not even notice them. They may involve disabling Windows Recovery services and they may also result in the shadow volume copies of your computer being deleted. The commands may be among the ones listed below and they may be executed simultaneously via a Batch (.bat) script file:

→ 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
C:\Windows\System32\cmd.exe” /C vssadmin.exe Delete Shadows /All /Quiet

.promoz Ransomware – Encryption of Files

Similar to other STOP/Djvu ransomware viruses, the .promoz variant also uses the same AES encryption method, which encrypts bytes of the targeted files and then generates a symmetric decryption key. The outcome of the encryption is that the following types of files on victimized computers can no longer be opened:

  • Documents.
  • Videos.
  • Images.
  • Archives.
  • Virtual Drive files.
  • Audio files.
  • Other files, belonging to often-used programs.

After encryption, the files are appended the .promoz file suffix and they start to look like the following:

Remove .promoz Files Virus and Try Restoring Your Data

If you want to remove the .promoz file ransomware, we would suggest that you make a backup copy of your encrypted files first, since such viruses are often very unpredictable and may contain CBC(cipher-block-chaining) mode, which may break your files if you try to change their file extension.

To remove the .promoz files virus, we would suggest that you follow the removal instructions that are underneath this article. They have been created with the main idea to assist you in removing this ransomware the way you prefer. If manual removal does not seem to have any effect, we would strongly suggest what most cyber-security experts advise – to download and un a scan of your PC, using an advanced anti-malware software. This particular tool will make sure that all of the .promoz malicious files are erased from your computer permanently and this tool will also protect your computer against any future infections too.

If you want to try and restore files, encrypted by the .promoz file ransowmare, we would also recommend that you try the alternative file recovery steps underneath. They may not come with a 100% guarantee to be able to restore all your files, but with their aid, you might be able to recover at least some encrypted files.


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 .promoz File Ransomware from Windows.

Step 1: Boot Your PC In Safe Mode to isolate and remove .promoz File Ransomware


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 .promoz File Ransomware 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 .promoz File Ransomware 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 .promoz File Ransomware 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.

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 .promoz File Ransomware 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.


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 .promoz File Ransomware.

Ransomware infections and .promoz File Ransomware 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:


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 .promoz File Ransomware from Mac OS X.

Step 1: Uninstall .promoz File Ransomware and remove related files and objects

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 .promoz File Ransomware:

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 .promoz File Ransomware. 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 .promoz File Ransomware. 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 .promoz File Ransomware 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 .promoz File Ransomware. 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

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

Step 2: Scan for and remove .promoz File Ransomware files from your Mac

When you are facing problems on your Mac as a result of unwanted scripts and programs such as .promoz File Ransomware, 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 .promoz File Ransomware on your Mac.

Ransomware for Mac .promoz File Ransomware 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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