What Is Tcbu Virus?
Tcbu virus is a cryptovirus ransomware infection, which has been specifically created in order to make sure and encrypt your files and then extort you for a ransom payoff. This virus is part of the STOP/DJVU threats and uses the _readme.txt extortion note plus the .Tcbu extension.
Read this article to learn about this virus and what you can do to fully get rid of it, try fixing your files and make sure that it does not come back in the future.
Tcbu Virus Summary
|Tcbu virus, also known as UDS:Trojan.Win32.Chapak.gen, Ransom:Win32/StopCrypt.KM!MTB, Win32:PWSX-gen [Trj], Win32:PWSX-gen [Trj], A Variant Of Win32/GenKryptik.FHJB – more detections of this virus on VirusTotal
|The ransomware encrypts files on your computer system and demands a ransom to be paid to allegedly recover them.
|The Tcbu Virus ransomware will encrypt your files by appending the .Tcbu extension to them.
|Ransom Demanding Note
|Spam Emails, Email Attachments
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Tcbu Virus – How Did I Get Infected?Tcbu virus is just like other STOP/DJVU variants, such as .iios, .kqgs and .bpqd. Tcbu virus may end up infecting your computer via the following main methods:
- By being downloaded from a shady site.
- If it is sent to you as an e-mail attachment or a URL.
- Work-related files.
- E-Tickets for events or flights.
If this is the case, then the Tcbu virus may trigger an infection with malicious macros when opened, which looks somewhat like the following:Tcbu virus may also cause an infection by appearing as if it is a legitimate form of executable that the victim may have downloaded online, like:
- Software patches.
- Self extracting archives or regular archives.
- Cracked portable versions of apps.
- Software or game cracks.
- Fake installation files.
- Key generator (or Keygen).
Tcbu Virus – What Does It Do?Tcbu virus may connect to a remote host after it infects your computer and download its payload files that may be located in the following Windows directories:
Among the files is the _readme.txt ransom note, that is created mainly to give users instructions that are necessary to get the files decrypted by paying the crooks behind the virus a hefty ransom in BitCoin:
Text from the _readme.txt note:
Don’t worry, you can return all your files!
All your files like pictures, databases, documents 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 you have?
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.
You can get and look video overview decrypt tool:
Price of private key and decrypt software is $980.
Discount 50% available if you contact us first 72 hours, that’s price for you is $490.
Please note that you’ll never restore your data without payment.
Check your e-mail “Spam” or “Junk” folder if you don’t get answer more than 6 hours.
To get this software you need write on our e-mail:
Reserve e-mail address to contact us:
Your personal ID:
Among the malicious activities of this virus is to also perform a lot of modifications to the Windows Registries, mainly in the Run and RunOnce sub-keys:
The outcome of this is that the malware may run automatically each time you boot Windows.
What Are .Tcbu Files
The .Tcbu files are actually encrypted copies of your original files via the AES encryption algorithm, which changes their core structure code, making them inaccessible. The virus may generate two types of decryption keys – either online or offline, with the latter being easier to decrypt. What happens is Tcbu virus may scan for the following types of files to encrypt:
- Archive file formats (.zip, .rar, etc).
- Documents of different types (.docx, .pptx, etc.).
- Audio (.mp3, .wav, etc.).
- Picture file kinds (.jpg, .png, .etc).
- Videos (.mp4, .avi, etc.).
After encryption, the files assume the following appearance:
How to Remove Tcbu Virus?
How to Decrypt .Tcbu Files?
To fix .Tcbu files, you could try the STOP Ransomware Decryption Steps or the video guide below.
Video guide for using the STOP Ransomware Decryptor:
What is Tcbu Ransomware?
Tcbu 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 Tcbu 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 Tcbu Infect?
Via several ways.Tcbu 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 Tcbu 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 .Tcbu files?
You can't without a decryptor. At this point, the .Tcbu 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 .Tcbu files successfully, then do not despair, because this virus is still new.
Can I Restore ".Tcbu" Files?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .Tcbu 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 Tcbu 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 Tcbu ransomware and then remove it without causing any additional harm to your important .Tcbu 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 Tcbu 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.
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 Tcbu Research
The content we publish on SensorsTechForum.com, this Tcbu 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.
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.
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