Recently detected data locker ransomware associated with the Russian exchange platform BestChange extorts a ransom of 25 000 Russian Ruble in Bitcoin for a decryption tool. When started on a target computer system it applies a variety of malicious changes that enable the encryption of certain types of files. Following encryption, corrupted files could not be opened.
In this article, you will find more information about this ransomware as well as a step-by-step removal and data recovery guide.
|Name||BestChange Russian Ransomware|
|Short Description||A data locker ransomware that encodes important files and extorts a ransom payment in Bitcoin.|
|Symptoms||Essential system setitngs are plagued. Important files are locked and inaccessbile. A ransom message blackmails victims to pay a ransom fee within a fixed time frame.|
|Distribution Method||Spam Emails, Email Attachments|
|Detection Tool|| See If Your System Has Been Affected by BestChange Russian Ransomware |
Malware Removal Tool
|User Experience||Join Our Forum to Discuss BestChange Russian Ransomware.|
|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.|
BestChange Russian Ransomware – Distribution
Infecting BestChange ransomware files could be spread with the help of commonly used techniques like malspam, malvertising, unexpected redirects to corrupted web pages and fake software updates and infected software installers. Spread campaigns are presumably launched against Russian speaking countries. However, this does not eliminate the possibility of other countries to be targets of launched attack campaigns.
Here are some traits you should keep an eye on when you receive 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.
BestChange Russia Ransomware – Overview
When started on a target computer system the so-called BestChange ransomware performs a variety of malicious actions that enable it to apply changes to essential system components and eventually reach data encryption stage. Before it could run its built-in cipher module, the ransomware should establish more malicious files and objects. Where these files could be located are the following folders:
- User Folders
By executing them in a predefined order, BestChange ransomware evades detection and gains persistence on the infected system. The latter is usually achieved after successful contamination of the registry keys Run and RunOnce. These keys are part of the Registry Editor which in turn is a hierarchical database where settings of some essential system processes are kept.
Once malicious values are added under the registry key Run ransomware files are automatically loaded on each system start.
Among the traits that signify for an infection with BestChange ransomware is a text file called инструкция по оплате. This file contains a ransom message written in Russian that reads the following:
Переходите по ссылке на сайт мониторинга обмена криптовалют.
В левой колонке “отдадите” указываете удобный для Вас способ передачи денег. (сбербанк ,альфа ,киви, яндекс и т.д.)
В правой колонке “получите” выбираете Bitcoin.
Мониторинг предложит варианты обменников и их резервы.
Выберете один и самых верхних и перейдите к ним на сайт.
Создайте заявку и укажите наш адрес кошелька Bitcoin “1AxE1iGGGRt2YxW1h5Xzw6ConoW89P54cx” – без кавычек.
Для каждого человека выдается свой уникальный адрес и только Вы можете послать на него деньги.
Обмен происходит безопасно и быстро. (5-15 минут).
После оплаты, обменный пункт выдаст вам номер заявки со статусом.
В доказательство обмена средств с Вашей стороны скопируйте ссылку с заявкой и пришлите нам.
Для оплаты отводится 48 часа. По истечению срока сумма дешифратора увеличивается на 50%.
После оплаты мы вышлем вам дешифратор и будем сопровождать Вас по почте до полной расшифровки всех файлов.
Приобрести биткоины Вы также можете на сайте https://localbitcoins.com/ru/
Не советуем обменивать или покупать криптовалюту из контекстной рекламы Яндекс Директ или Google Adwords!!!
Сумма дешифратора 25000 рублей. После оплаты высылаем дешифратор. Запускаете его, и в вашем случаи ждать расшифровки около 10-20 минут. Полностью сопроводим вас по почте до восстановления. Убедительная просьба, если хотите
проводить эксперименты с файлами сами или “мастерами” , то сохраните все отдельно и пусть проводят эксперименты отдельно, чтобы не испортить ничего. На данный момент кроме нас вам никто не поможет.
Поучительная статья на будущее!
Translated with the help of an automatic translator it becomes clear that the message in English reads the following:
Follow the link to the cryptocurrency exchange monitoring site.
In the left column “give away” you specify a convenient way for you to transfer money. (Sberbank, alpha, kiwi, yandex, etc.)
In the right column “get” choose Bitcoin.
Monitoring will offer options for exchangers and their reserves.
Select the one and the top and go to them on the site.
Create a request and specify our Bitcoin wallet address “1AxE1iGGGRt2YxW1h5Xzw6ConoW89P54cx” – without quotes.
Each person is given a unique address and only you can send money to him.
The exchange takes place safely and quickly. (5-15 minutes).
After payment, the exchange office will give you the application number with the status.
As proof of your exchange, copy the link with the application and send it to us.
48 hours are allowed for payment. At the end of the period, the amount of the decoder is increased by 50%.
After payment, we will send you a descrambler and will accompany you by mail until full decryption of all files.
You can also buy bitcoins at https://localbitcoins.com/ru/
We do not recommend to exchange or buy cryptocurrency from contextual advertising Yandex Direct or Google Adwords !!!
================================================= ================================================= ===========
The amount of the decoder is 25,000 rubles. After payment we will send the decoder. Run it, and in your cases wait for decryption about 10-20 minutes. Fully escort you to the mail before recovery. Kindly requested if you want
conduct experiments with the files themselves or “masters”, then save everything separately and let them conduct experiments separately, so as not to spoil anything. At the moment, except for us, no one will help you.
An instructive article for the future!
This message could be loaded on your screen at the end of the attack. Apparently, hackers behind this evil threat urge victims to transfer 25 000 Russian Ruble in Bitcoin within 48 hours. At the end of this period, the amount of the decoder is increased by 50%. At the moment of writing this article this amount equals to 0.10 Bitcoin or 377.30 US Dollars.
Our advice is to avoid their instructions and attempt to deal with the problem without risking the loss of both your money and data. Check the guide at the end of this article to learn how to clean your system, make it secure and find out how to potentially restore encrypted files.
BestChange Russia Ransomware – Encryption Process
The encryption stage begins soon after all initial malicious modifications are applied. For it, BestChange RU ransomware activates a built-in cipher module that is designed to scan all drives for targeted types of files and transform their original code with the help of sophisticated cipher algorithm. At last, corrupted files are inaccessible unless their code is reverted back to its original state.
All types of files that are commonly used for the storage of important data could be encoded by this ransomware:
- Audio files
- Video files
- Document files
- Image files
- Backup files
- Banking credentials, etc
At this point, there is no specific file extension related to BestChange cryptovirus. So your corrupted files may only appear with the system icon used for broken files and without any added extensions.
Remove BestChange Russia Ransomware
The so-called BestChange Russia Ransomware 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 this ransomware. We remind you to back up all encrypted files to an external drive before the recovery process.
- Guide 1: How to Remove BestChange Russian Ransomware from Windows.
- Guide 2: Get rid of BestChange Russian Ransomware from Mac OS X.
- Guide 3: Remove BestChange Russian Ransomware from Google Chrome.
- Guide 4: Erase BestChange Russian Ransomware from Mozilla Firefox.
- Guide 5: Uninstall BestChange Russian Ransomware from Microsoft Edge.
- Guide 6: Remove BestChange Russian Ransomware from Safari.
- Guide 7: Eliminate BestChange Russian Ransomware from Internet Explorer.
How to Remove BestChange Russian Ransomware from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove BestChange Russian Ransomware
Step 2: Uninstall BestChange Russian 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.
Step 3: Clean any registries, created by BestChange Russian Ransomware on your computer.
The usually targeted registries of Windows machines are the following:
You can access them by opening the Windows registry editor and deleting any values, created by BestChange Russian Ransomware there. This can happen by following the steps underneath:
Get rid of BestChange Russian Ransomware from Mac OS X.
Step 1: Uninstall BestChange Russian Ransomware and remove related files and objects
1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
- 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 BestChange Russian 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:
You can repeat the same procedure with the following other Library directories:
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 2: Scan for and remove BestChange Russian Ransomware files from your Mac
When you are facing problems on your Mac as a result of unwanted scripts and programs such as BestChange Russian 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.
Remove BestChange Russian Ransomware from Google Chrome.
Step 1: Start Google Chrome and open the drop menu
Step 2: Move the cursor over "Tools" and then from the extended menu choose "Extensions"
Step 3: From the opened "Extensions" menu locate the unwanted extension and click on its "Remove" button.
Step 4: After the extension is removed, restart Google Chrome by closing it from the red "X" button at the top right corner and start it again.
Erase BestChange Russian Ransomware from Mozilla Firefox.
Step 1: Start Mozilla Firefox. Open the menu window
Step 2: Select the "Add-ons" icon from the menu.
Step 3: Select the unwanted extension and click "Remove"
Step 4: After the extension is removed, restart Mozilla Firefox by closing it from the red "X" button at the top right corner and start it again.
Uninstall BestChange Russian Ransomware from Microsoft Edge.
Step 1: Start Edge browser.
Step 2: Open the drop menu by clicking on the icon at the top right corner.
Step 3: From the drop menu select "Extensions".
Step 4: Choose the suspected malicious extension you want to remove and then click on the gear icon.
Step 5: Remove the malicious extension by scrolling down and then clicking on Uninstall.
Remove BestChange Russian Ransomware from Safari.
Step 1: Start the Safari app.
Step 2: After hovering your mouse cursor to the top of the screen, click on the Safari text to open its drop down menu.
Step 3: From the menu, click on "Preferences".
Step 4: After that, select the 'Extensions' Tab.
Step 5: Click once on the extension you want to remove.
Step 6: Click 'Uninstall'.
A pop-up window will appear asking for confirmation to uninstall the extension. Select 'Uninstall' again, and the BestChange Russian Ransomware will be removed.
Eliminate BestChange Russian Ransomware from Internet Explorer.
Step 1: Start Internet Explorer.
Step 2: Click on the gear icon labeled 'Tools' to open the drop menu and select 'Manage Add-ons'
Step 3: In the 'Manage Add-ons' window.
Step 4: Select the extension you want to remove and then click 'Disable'. A pop-up window will appear to inform you that you are about to disable the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and click 'Disable'.
Step 5: After the unwanted extension has been removed, restart Internet Explorer by closing it from the red 'X' button located at the top right corner and start it again.