This article provides information about a version of Scarab data locker ransomware dubbed Rebus. The threat encrypts important files and demands a ransom payment. By reaching the end of the article, you will know how to remove the threat and how to restore .REBUS files.
Rebus is a newly detected ransomware that belongs to the Scarab family. It is classified as data locker ransomware due to its main purpose to locate target files and encode them. Corrupted data can be recognized by the specific extension .REBUS that stands at the end of their names. Hackers behind Rebus ransomware demand a ransom for the decryption of .REBUS files.
|Short Description||A data locker ransomware that utilizes AES cihper algorithm to encrypt target files stored on the infected computer. Then it demands a ransom for a specific decryption solution.|
|Symptoms||Important files are locked and renamed with .REBUS extension. The access to the information they store remains restricted until a ransom is paid.|
|Distribution Method||Spam Emails, Email Attachments|
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|User Experience||Join Our Forum to Discuss Rebus.|
|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.|
Rebus Ransomware – Distribution
An infection with Rebus ransomware could be triggered by a malicious payload that sneaks into computer systems with the help of various shady techniques of distribution. Preferred by hackers are the email spam campaigns. Crafted emails often attempt to trick users into installing the ransomware directly on their PCs. The malicious components parts of such emails usually are various kinds of file attachments and/or in-text links. To make users more prone to open an attached file or visit a corrupted web page, hackers impersonate representatives of well-known companies or even governmental institutions. In case of interaction with any of the malicious components the ransomware gains access to the system and starts the infection process.
Next time when you need to open a dubious file on your PC you can use a free online extractor to identify whether the file contains malicious elements or not. Once you have this information you could easily prevent severe malware infections like Rebus ransomware from infecting your system.
Rebus (Scarab) Ransomware – Overview
Once Rebus ransomware payload is running on the system it initiates a sequence of changes that affect various system settings. At first, it could create additional malicious files and locate some of them in the following folders:
As the payload may not contain the commands that will lead the infection to its very end, Rebus may contact its command and control server to drop more needed files and objects. It is likely that some of them are self-destroying so at the end of the attack, only part of all malware files may remain on the system.
The remaining files could be used by hackers to establish a connection with the infected PC and monitor the activities performed on it. Furthermore, they could unnoticeably install another malware and record all keystrokes, steal sensitive credentials or use system resources to mine for any cryptocurrency.
A specific trait of Rebus ransomware is its ransom note that it displays on the PC screen. The note is contained in a file called REBUS RECOVERY INFORMATION.TXT and that is reads is:
YOUR FILES ARE ENCRYPTED!
Your personal ID
Your documents, photos, databases, save games and other important data was encrypted.
Data recovery the necessary decryption tool. To get the decryption tool, should send an email to:
firstname.lastname@example.org or email@example.com
If you dont get reply in 24 hours use jabber:
Letter must include Your personal ID (see the beginning of this document).
In the proof we have decryption tool, you can send us 1 file for test decryption.
Next, you need to pay for the decryption tool.
In response letter You will receive the address of Bitcoin wallet which you need to perform the transfer of funds.
If you have no bitcoins
* Create Bitcoin purse: https://blockchain.info
* Buy Bitcoin in the convenient way
https://en.wikipedia.org/wiki/Bitcoin (the instruction for beginners)
– It doesn’t make sense to complain of us and to arrange a hysterics.
– Complaints having blocked e-mail, you deprive a possibility of the others, to decipher the computers.
Other people at whom computers are also ciphered you deprive of the ONLY hope to decipher. FOREVER.
– Just contact with us, we will stipulate conditions of interpretation of files and available payment,
in a friendly situation
– When money transfer is confirmed, You will receive the decrypter file for Your computer.
* Do not attempt to remove a program or run the anti-virus tools
* Attempts to decrypt the files will lead to loss of Your data
* Decoders other users is incompatible with Your data, as each user unique encryption key
Negotiations and contacts with hackers should be avoided as they can try to scam you and make you a victim of their malicious intentions for the second time.
Rebus Ransomware – Encryption Process
All initial system modifications are made to support the completion of Rebus’s main purpose which is encryption of target files. For the encryption Rebus is known to utilize the strong AES cipher. This cipher changes completely the original code of predefined types of files including:
- Audio files
- Video files
- Document files
- Image files
- Backup files
- Banking credentials, etc
After encryption, all corrupted files have completely changed names that end with the extension .REBUS. The access to the information stored by .REBUS files is restricted as hackers demand a ransom payment for the specific decryption key. The ransomware generates this key during the encryption process. Unfortunately, immediately after this event, the key is transferred to criminals’ host.
Beware that there is no guarantee that the Rebus ransomware has code that enables it to generate working decryption keys. This means that the key possessed by hackers could be broken and unable to decrypt your .REBUS files. So don’t rush into transferring them the ransom before you try to resolve the problem with the help of alternative solutions.
Remove Rebus Ransomware Ransomware and Restore .REBUS Files
The removal of this Scarab ransomware version named Rebus demands a bit of technical experience and ability to recognize characteristics of malware files. And there is no doubt that you should remove this nasty threat from the infected PC as soon as you detect it. Below you could find how to do it step by step. Beware the ransomware is a highly complex threat that is designed to plague your whole system and not only your files. That’s why security researchers recommend the use of an advanced anti-malware tool for its removal. Such tool will keep your system protected against devastating threats like Rebus as well as all other kinds of malware in future.
After you remove the ransomware make sure to check the “Restore Files” step listed in the guide below. But before you take any further actions, don’t forget to back up all encrypted files to an external drive in order to prevent their irreversible loss.
What is Rebus Ransomware?
Rebus 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.
Can Rebus Ransomware Cayse Damage?
Yes, ransomware can damage your computer. Ransomware is a malicious software that is designed to block access to your computer or files until a ransom is paid.
Ransomware can also damage your system, corrupt data and delete files, resulting in the permanent loss of important files.
Should I Ignore Viruses, Like Rebus?
No, you should never ignore ransomware. It can encrypt your data and block access to your computer, making it impossible to access your files until you pay a ransom.
Ignoring ransomware could lead to the permanent loss of your data, as well as the potential for the ransomware to spread to other computers on your network. Additionally, paying the ransom does not guarantee that your data will be recovered.
How Does Rebus Infect?
Via several ways.Rebus 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.
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 Rebus 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 .Rebus files?
You can't. At this point, the .Rebus files are encrypted. You can only open them once they are decrypted using a specific decryptionkey 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 .Rebus files successfully, then do not despair, because this virus is still new.
Can I Restore ".Rebus" Files?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .Rebus 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 Rebus 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 Rebus ransomware and then remove it without causing any additional harm to your important .Rebus files.
Also, keep in mind that viruses like Rebus ransomware also install Trojans and keyloggers that can steal your passwords and accounts.
What to Do If I Cant Get The Files Back?
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 can be re-downloaded from the web.
- Another clever way 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.
How to 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 Rebus 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.
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.
Why Is the Ransom Paid in Crypto?
Cryptocurrency is a secure and untraceable form of payment, making it the ideal choice for ransom payments. It is difficult to trace, and the transactions are almost instantaneous. This means it is nearly impossible for authorities to track the payment and recover the money.
Can 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 Rebus Research
The content we publish on SensorsTechForum.com, this Rebus 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.
To better understand the ransomware threat, please refer to the following articles which provide knowledgeable details.
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