.promos Files Virus - How to Remove It

.promos Files Virus – How to Remove It

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In this article, you will find more information about .promos files virus as well as a step-by-step guide on how to remove malicious files from an infected system and how to potentially recover files encrypted by this ransomware.

In case that you see the extension .promos at the end of the names of your files and cannot open them, your system has been infected by a version of STOP ransomware. The threat is named after the extension it uses to mark locked files – .promos files virus. For more details about the decryption of .promos files, the ransomware drops a ransom message and demands a ransom fee. Keep up with the article to find more details on the removal of this threat and the recovery process of encrypted files.

Threat Summary

Name.promos Files Virus
TypeRansomware, Cryptovirus
Short DescriptionA data locker ransomware that encrypts valuable data and demands ransom payment for a decryption solution.
SymptomsImportant files are encoded and renamed with the extension .promos
The access to their information is restricted.
Distribution MethodSpam Emails, Email Attachments
Detection Tool See If Your System Has Been Affected by .promos Files Virus


Malware Removal Tool

User ExperienceJoin Our Forum to Discuss .promos 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.

.promos Files Virus – Distribution

The main infection vector used by authors of .promos files virus is likely to be the malspam. Malspam (spam emails that deliver malicious code) is a commonly used technique used for the spread of ransomware like .promos. There are several common components that are typical of these emails:

  • An URL address presented in the form of an in-text link, button, image, banner or other form. Once loaded in the browser the web page associated with this link usually triggers an automatic download process of the malicious ransomware payload. After downloading the payload the same page usually activates specific scripts that execute it directly on your PC.
  • An attachment that contains the malware in it. Usually, according to the text message this file should be reviewed as soon as possible due to the importance of its information. The moment you open it on your device is the moment when you trigger the infection process with .djvu files virus. This file may be a familiar type of file such as .rar, .zip, .7z, .docx When infected such a file could be set to evade active security measures and complete the attack without leaving you any chance of detecting the malicious activities it performs on the background.

Since the security of your device and your data is of paramount importance we recommend you to use the help of free online scanners like VirusTotal and ZipeZip every next time you receive a questionable email that contains any of the mentioned components. With the help of these scanners, you will easily identify whether the components are malicious or not.

.promos Files Virus – Overview

The ransomware named .promos files virus has been identified as a strain of

STOP threat family. While infecting computer systems, the ransomware corrupts the settings of some essential components. The process is realized with the help of a bunch of malicious files which it could create in some of the following folders:

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

The Registry Editor is a component that is likely to be affected by STOP .promos cryptovirus. Since there are registry keys that have the functionality to auto-execute files and processes, ransomware threats like .promos often misuse them to gain persistence on the infected system. To achieve this, the threat accesses Run and RunOnce registry keys and adds its malicious values under them. Once added under the registry key Run, these malicious values enable the automatic load of ransomware files on each system start.

At the end of the attack, a ransom note file could be automatically loaded on the screen. The message presented by this file attempts to trick you into contacting hackers for more details about a ransom payment. Like previous STOP ransomware versions, .promos files virus could create a message that reads the following:

———————————————- 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]

Let us warn you that hackers could send you broken decryption key even if you pay them the demanded ransom. The good news is that security experts have managed to crack the code of almost all variants of this ransomware family and released a decryption tool. Eventually, it may work for the recovery of .promos files as well. You can download it via the Decryption Tool link. The tool requires a pair of an original file and its encrypted version.

.promos Files Virus – Encryption Process

When .promos files virus reaches the data encryption stage, it activates a built-in encryption module which is designed to transform the code of target files with the help of two sophisticated cipher algorithms – AES and RSA. The completion of this process leaves corrupted files out of order.

Once the original code of a target file is transformed, the file receives the extension .promos. Unfortunately, the ransomware is likely to encode all files that keep sensitive information of yours. Among these files may be all:

  • Audio files
  • Video files
  • Document files
  • Image files
  • Backup files
  • Banking credentials, etc

Remove .promos Files Virus and Data

The so-called .promos files virus is a threat with highly complex code designed to corrupt both system settings and valuable data. So the only way to use your infected system in a secure manner again is to remove all malicious files and objects created by the ransomware. For the purpose, you could use our removal guide that reveals how to clean and secure your system step by step. In addition, in the guide, you will find several alternative data recovery approaches that may be helpful in attempting to restore files encrypted by STOP .promos ransomware. We remind you to back up all encrypted files to an external drive before the recovery process.

Gergana Ivanova

Gergana Ivanova

Gergana has completed a bachelor degree in Marketing from the University of National and World Economy. She has been with the STF team for four years, researching malware and reporting on the latest infections.

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