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 .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 |
| Type | Ransomware, Cryptovirus |
| Short Description | Has 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. |
| Symptoms | Files are encrypted with the added .promoz file extension. A ransom note, called _readme.txt with the e-mail blower@firemail.cc appears. |
| Distribution Method | Spam Emails, Email Attachments, Executable files |
| Detection Tool |
See If Your System Has Been Affected by malware
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Malware Removal Tool
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| 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. |
.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:
blower@firemail.cc
Reserve e-mail address to contact us:
blower@firemail.cc
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
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
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 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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Step 1: Scan for .promoz File Ransomware with SpyHunter Anti-Malware Tool
Ransomware Automatic Removal - Video Guide
Step 2: Uninstall .promoz File Ransomware and related malware 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:
Follow the instructions above and you will successfully delete most unwanted and malicious 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:
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: Boot Your PC In Safe Mode to isolate and remove .promoz File Ransomware
Step 5: Try to Restore Files Encrypted by .promoz File Ransomware.
Method 1: Use STOP Decrypter by Emsisoft.
Not all variants of this ransomware can be decrypted for free, but we have added the decryptor used by researchers that is often updated with the variants which become eventually decrypted. You can try and decrypt your files using the instructions below, but if they do not work, then unfortunately your variant of the ransomware virus is not decryptable.
Follow the instructions below to use the Emsisoft decrypter and decrypt your files for free. You can download the Emsisoft decryption tool linked here and then follow the steps provided below:
1 Right-click on the decrypter and click on Run as Administrator as shown below:
2. Agree with the license terms:
3. Click on "Add Folder" and then add the folders where you want files decrypted as shown underneath:
4. Click on "Decrypt" and wait for your files to be decoded.
Note: Credit for the decryptor goes to Emsisoft researchers who have made the breakthrough with this virus.
Method 2: Use data recovery software
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.
Simply click on the link and on the website menus on the top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.
.promoz File Ransomware-FAQ
What is .promoz File Ransomware Ransomware?
.promoz File Ransomware 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 algorithms 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.
What Does .promoz File Ransomware Ransomware Do?
Ransomware in general is a malicious software that is designed to block access to your computer or files until a ransom is paid.
Ransomware viruses can also damage your system, corrupt data and delete files, resulting in the permanent loss of important files.
How Does .promoz File Ransomware Infect?
Via several ways..promoz File Ransomware Ransomware infects computers by being sent via phishing emails, 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.
Another way you may become a victim of .promoz File Ransomware 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 ..promoz File Ransomware files?
You can't without a decryptor. At this point, the ..promoz File Ransomware files are encrypted. You can only open them once they are decrypted using a specific decryption key for the particular algorithm.
What to Do If a Decryptor Does Not Work?
Do not panic, and backup the files. If a decryptor did not decrypt your ..promoz File Ransomware files successfully, then do not despair, because this virus is still new.
Can I Restore "..promoz File Ransomware" Files?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore ..promoz File Ransomware files.
These methods are in no way 100% guaranteed that you will be able to get your files back. But if you have a backup, your chances of success are much greater.
How To Get Rid of .promoz File Ransomware Virus?
The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti-malware program.
It will scan for and locate .promoz File Ransomware ransomware and then remove it without causing any additional harm to your important ..promoz File Ransomware files.
Can I Report Ransomware to Authorities?
In case your computer got infected with a ransomware infection, you can report it to the local Police departments. It can help authorities worldwide track and determine the perpetrators behind the virus that has infected your computer.
Below, we have prepared a list with government websites, where you can file a report in case you are a victim of a cybercrime:
Cyber-security authorities, responsible for handling ransomware attack reports in different regions all over the world:
Germany - Offizielles Portal der deutschen Polizei
United States - IC3 Internet Crime Complaint Centre
United Kingdom - Action Fraud Police
France - Ministère de l'Intérieur
Italy - Polizia Di Stato
Spain - Policía Nacional
Netherlands - Politie
Poland - Policja
Portugal - Polícia Judiciária
Greece - Cyber Crime Unit (Hellenic Police)
India - Mumbai Police - CyberCrime Investigation Cell
Australia - Australian High Tech Crime Center
Reports may be responded to in different timeframes, depending on your local authorities.
Can You Stop Ransomware from Encrypting Your Files?
Yes, you can prevent ransomware. The best way to do this is to ensure your computer system is updated with the latest security patches, use a reputable anti-malware program and firewall, backup your important files frequently, and avoid clicking on malicious links or downloading unknown files.
Can .promoz File Ransomware Ransomware Steal Your Data?
Yes, in most cases ransomware will steal your information. It is a form of malware that steals data from a user's computer, encrypts it, and then demands a ransom in order to decrypt it.
In many cases, the malware authors or attackers will threaten to delete the data or publish it online unless the ransom is paid.
Can Ransomware Infect WiFi?
Yes, ransomware can infect WiFi networks, as malicious actors can use it to gain control of the network, steal confidential data, and lock out users. If a ransomware attack is successful, it could lead to a loss of service and/or data, and in some cases, financial losses.
Should I Pay Ransomware?
No, you should not pay ransomware extortionists. Paying them only encourages criminals and does not guarantee that the files or data will be restored. The better approach is to have a secure backup of important data and be vigilant about security in the first place.
What Happens If I Don't Pay Ransom?
If you don't pay the ransom, the hackers may still have access to your computer, data, or files and may continue to threaten to expose or delete them, or even use them to commit cybercrimes. In some cases, they may even continue to demand additional ransom payments.
Can a Ransomware Attack Be Detected?
Yes, ransomware can be detected. Anti-malware software and other advanced security tools can detect ransomware and alert the user when it is present on a machine.
It is important to stay up-to-date on the latest security measures and to keep security software updated to ensure ransomware can be detected and prevented.
Do Ransomware Criminals Get Caught?
Yes, ransomware criminals do get caught. Law enforcement agencies, such as the FBI, Interpol and others have been successful in tracking down and prosecuting ransomware criminals in the US and other countries. As ransomware threats continue to increase, so does the enforcement activity.
About the .promoz File Ransomware Research
The content we publish on SensorsTechForum.com, this .promoz File Ransomware how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific malware and restore your encrypted files.
How did we conduct the research on this ransomware?
Our research is based on an independent investigation. We are in contact with independent security researchers, and as such, we receive daily updates on the latest malware and ransomware definitions.
Furthermore, the research behind the .promoz File Ransomware ransomware threat is backed with VirusTotal and the NoMoreRansom project.
To better understand the ransomware threat, please refer to the following articles which provide knowledgeable details.
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.
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