Booa Virus Removal Guide (+Decrypt .booa files)

Booa – Ransomware

Booa is a malicious software functioning as common ransomware. Michael Gillespie, the popular virus researcher, very first discovered this new name in the DJVU ransomware family.

Booa was developed for the sole function to encrypt all popular file types. Realistically, as soon as the file encryption is effectively accomplished, the users are unable to get access to them. Booa virus adds its own “.booa” to all the encrypted files. For instance, the file “price_list.xls”, as soon as crypted by Booa, will be titled as “price_list.xls.booa”. When the encryption is accomplished, Booa puts its own unique text file (_readme.txt) into all the folders that store the encrypted files.

The alert stated by document requesting for the random os extremely comparable to the notifications offered by other ransomware dangers belonging to the DJVU family. The caution essentially shows that the files have been encrypted and the only service to get access to it is to use an unique standalone key. Regretfully, this statement is absolutely real.

The method to encrypt the files used by Booa is not totally researched. Nevertheless, there is no doubt that each computer system owner may be issued a special decryption key, which is definitely special. It is extremely tough to recover the information without the proper key in location.

“Don’t worry, you can return all your files!”, from _readme.txt message:

message from Booa virus

One more peculiarity of the Booa ransomware is that the users are not able to get access to the key. The decrypting key is hosted on an unique server under the complete control by the crooks who have launched the Booa ransomware into the internet. In order to get the key and restore the crucial data, the users are told to contact the frauds by means of e-mail or by telegram and to pay the ransom in the amount of $980.

The message likewise states that individuals need to get in touch with the Booa authors within 72 hours upon the moment of the information file encryption. The alert suggests that by doing so individuals will obtain a 50% discount, for that reason, the ransom quantity falls to $490.

No matter what the amount of the ransom is, we highly advise that you do not pay the ransom. There is no guarantee that these online crooks will keep their promises, so they might not care at all what the victims feel about the encryption, even when the amount of the ransom is received into their accounts. Hence, paying ransom often does not result in an effective healing. So, the users might just lose their money for nothing.

Likewise, we urge you not to call the frauds as they advise. Do not move cash into their wallets. There are no applications that could split the Booa virus or bring back the information for free. Therefore, the only proper choice is to bring back the information from possible backups (if readily available).

Virus Summary

NameBooa Ransomware
File Extensionbooa
TypeRansomware
FamilyDJVU
Short DescriptionThe ransomware encrypts all the data stored on your system and requires a ransom to be paid on your part supposedly to recover your important files.
SymptomsFile encryption by the ransomware is performed by means of the AES-256 algorithm (CFB mode) encryption algorithm. Once the encryption is completed, the ransomware adds its special .booa extension to all the files modified by it.
Distribution MethodAdware bundles and software cracks
Similar InfectionsIgdm, Nobu, Weui
Booa Removal Tool   GridinSoft Anti-Malware
Booa Decryption Tool   Emsisoft Djvu Decryptor

Do not forget that the Web is now filled with infections similar to the Booa ransomware. For example, this particular danger is essentially identical to Brusaf and other ransomware-type infections. These destructive energies have actually been established in order to encrypt the important information and reveal the need for the users to pay the ransom. All these infections use the identical algorithm to create the particular key for successful data decryption.

Unless the Booa ransomware is still under the development procedure or has got some hidden bugs, it is not possible to bring back the information manually. Thus, the only working option to prevent the loss of your crucial data is to routinely preserve updated backups of all your important data.

Another crucial piece of suggestions is to store the backups on unique storage not connected to your primary device. For example, you may store it on the USB Flash Drive, or some external drive, or by using the cloud data storage services. Keeping the backups on your system drive is really dangerous, because the backup might also be secured by the Booa .

Leakages for the Booa ransomware attack.

Booa uses lots of paths to penetrate the susceptible computer systems. It is not specific what specific technique was utilized in your case, nevertheless, the intrusion might occur via the following channels:

  • bundling with third-party programs, mainly free apps;
  • spam e-mails from the unidentified senders;
  • sites providing complimentary hosting;
  • P2P (peer-to-peer) torrent software.

There are times when the Booa might disguise itself as some authentic application, for instance, through the misleading notifies demanding installation of some software application update. This is the most common technique utilized by the frauds to inject the Booa ransomware files into the system. This way users partly participate in its installation, without plainly understanding the danger.

In addition, the frauds may send out unsolicited spam email with difficult alerts motivating the people to open dubious accessories or click on some download links, for example, those encouraging the people to open certain photos, text files, tax files and other information.

No doubt, opening these files or clicking on the destructive links may basically damage the system. Fake Media Player update notifications may lead to the Booa ransomware infiltration. Likewise, downloading the broken software application may furthermore consist of the ransomware installer. The last but not the least, installation of Booa might happen through some Trojan horses that may be set up stealthily into the system and without the user’s direct permission or even permission.

Preventing the Booa attack.

Naturally, there is no absolute warranty that your computer will be constantly without any malware attacks, nevertheless, we wish to share some beneficial tips with you to make it safer. Make sure to pay really attention while browsing the web and particularly while getting cost-free programs. Do not open any suspicious e-mail attachments, particularly if the sender is not known to you.

Do not forget that certain freeware installer may also include some other extra apps in the package. These additional applications might be really damaging. It is of utmost importance to keep your anti-virus software and your os in basic to be constantly effectively updated.

It is rather rational that downloading cracked software is unlawful, nevertheless, in addition, such unauthorized software application usage may also bring major damage to your computer. Thus, do not download any split programs. Plus, the fact that your existing anti-virus did not protect the system from the Booa ransomware is a good factor for you to reassess your choices and switch to another program that can render the protecting functions on a far better level.

Below please find the quotation from the Booa text file:

ATTENTION!
 
 Don't worry, you can return all your files!
 All your files like photos, 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:
 https://we.tl/t-2P5WrE5b9f
 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:
 restorealldata@firemail.cc
  
 Reserve e-mail address to contact us:
 gorentos@bitmessage.ch 

 Our Telegram account:
 @datarestore

Screenshot of files with “.booa” extension added by the ransomware:”

Booa Ransomware - encrypt files with .booa extension

Use GridinSoft Anti-Malware to remove Booa ransomware from your computer

1.Download GridinSoft Anti-Malware.

You can get GridinSoft Anti-Malware by clicking the button below:

  GridinSoft Anti-Malware

2. Double-click on the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-ag.exe file to install GridinSoft Anti-Malware on your computer.
GridinSoft Anti-Malware
An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.
GridinSoft Anti-Malware Setup

3. Press Install button for run GridinSoft Anti-Malware.

GridinSoft Anti-Malware Install

3.Once installed, GridinSoft Anti-Malware will automatically run.

GridinSoft Anti-Malware  Start

4. Wait for the GridinSoft Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your computer for Win Speedup 2018 and other malicious programs. This process can take a 20-30 minutes, so we suggest you periodically check on the status of the scan process.
GridinSoft Anti-Malware Scan

5. Click on “Clean Now”.

When the scan has completed, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.
GridinSoft Anti-Malware Scan Result

Use Emsisoft Decryptor for restore booa files

You can download Emsisoft Decryptor by clicking the button below:

  Emsisoft Decryptor

  1. Run the decryptor as an administrator. The license terms will show up, which you have to agree to by clicking the “Yes” button.
  2. Once the license terms are accepted, the primary decryptor user interface opens.
  3. By default, the decryptor will pre-populate the locations to decrypt with the currently connected drives and network drives. Additional locations can be added using the Add” button.
  4. Decryptors typically offer various options depending on the particular malware family. The available options are located in the Options tab and can be enabled or disabled there. You can find a detailed list of the available Options below.
  5. After you have added all the locations you want to decrypt to the list, click the “Decrypt” button to start the decryption process. The screen will switch to a status view, informing you about the current process and decryption status of your files
  6. The decryptor will inform you once the decryption process is finished. If you require the report for your personal records, you can save it by clicking the “Save log” button. You can also copy it straight to your clipboard to paste it into emails or forum posts if you are asked to.
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About Daniel Zimmermann

Daniel Zimmermann has been writing on security and malware subjects for many years and has been working in the security industry for over 10 years. Daniel was educated at the Saarland University in Saarbrücken, Germany and currently lives in New York.

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5 comments

  1. Here is my manual of the BOOA removal guide: https://virus-removal.info/rasnomware/remove-booa/

  2. thank for the help, i got it today is it new

    my nickname is virous360 but i don’t make viruses

  3. how to decrypt files with
    booa ransware
    with online id

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