Remove Acuna Virus (.[Cusapool@firemail.cc].Acuna Files Ransomware) – Phobos Ransomware

Acuna Virus – Details

The Acuna stands for a ransomware-type infection. The infection comes from the Phobos ransomware family. Acuna was elaborated particularly to encrypt all major file types. Once the file is encrypted people are not able to use them. Acuna adds the “.[Cusapool@firemail.cc].Acuna” extension for each file encrypted by it. For example, the file “myphoto.jpg“, as soon as encrypted by Acuna, will be renamed into “myphoto.jpg.[Cusapool@firemail.cc].Acuna“. As quickly as the encryption is completed, Acuna places a special text file into every folder containing the encrypted data.

The message given by Acuna text file requesting for the ransom is absolutely the like the statements given by other ransomware virus representatives belonging to the Phobos type. It literally points out that the information is encrypted and that the only way to restore it is to use a a special decryption key. Unfortunately, this is definitely true. The kind of cryptography mechanism used by Acuna is still not correctly examined. Still, it is absolutely particular that each victim might be given the specific decryption key, which is absolutely distinct. It is impossible to restore the files without the key available.

Another technique of Acuna is that the victims cannot access to the key. The key is stored on a particular server run by the frauds connected with Acuna ransomware. To get the key and recover the important info people need to pay the ransom.

Nevertheless, irrespective of the asked for quantity, people should stay away from paying the ransom. Cyber frauds are unfair, so they tend to entirely disregard what their victims feel about the issue, even when the payment reaches their pockets. This is why paying the ransom usually does not provide any positive outcome and people simply waste their money for absolutely nothing.

We highly advise that you do not contact these crooks and absolutely do not transfer money into their accounts. It is said to admit that there are no utilities able to crack Acuna ransomware and to recover the information data free of charge. Hence, the only best decision is to recover the lost information from the available backup.

Virus Summary

Name Acuna Ransomware
File Extension .[Cusapool@firemail.cc].Acuna
Type Ransomware
Family Phobos
Short Description The 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.
Symptoms File encryption by the ransomware is performed by means of the AES and RSA encryption algorithms. Once the encryption is completed, the ransomware adds its special [Cusapool@firemail.cc].Acuna extension to all the files modified by it.
Distribution Method Spam Emails, Email Attachments
Removal Tool   GridinSoft Anti-Malware

Bear in mind that the internet is now overwhelmed with threats that look similar to Acuna ransomware. Malicious programs of such kind are normally elaborated to encrypt crucial information and to set forth the need prior to the user to pay the ransom. The peculiarity of all such ransomware threats is that all apply a similar algorithm to create the special decryption key for files decryption.

Hence, as long as the ransomware is still being developed or has some hidden bugs, by hand recovering the information is just not feasible. The only way to avoid the loss of your essential information is to routinely create backups of your important information.

Bear in mind that even if you create such backups, they need to be placed into a special storage utility not connect to your main computer. You may use the Memory Stick or external hard disk for this purpose, or refer to the help of the cloud storage. If you save your backup files on your common system they may be encrypted along with other files, so it’s definitely not a good storage location.

How did ransomware infect my PC?

There are several ways used by online scams to distribute Acuna ransom virus. Although it is uncertain how exactly Acuna injects your computer, there are some leaks through which it may penetrate the system:

  • integration with third-party apps, especially freeware;
  • spam e-mails from unknown senders;
  • websites rendering free hosting services;
  • pirated peer-to-peer (P2P) downloads.

Often Acuna virus may be presented as some genuine software application, for instance, in the pop-ups advising users to carry out some important software updates. This is the common technique used by online frauds to persuade people into downloading and installing Acuna infection manually, by means of their direct participation in the installation process.

Furthermore, the criminals might refer to different e-mail spam strategies to inject malicious codes into systems. So, they may describe to sending unsolicited spam e-mails with tricky notices promoting users to download the attachments or click on certain download links, for example, the ones motivating users to open some receipts, documents, tax reports or invoices.

Needless to mention, opening such files or clicking on such dangerous links may significantly damage the PC. Fictitious Adobe Flash Player upgrade notifies may result in Acuna virus injection. When it comes to the cracked software, these illegally downloaded programs may also consist of harmful codes causing Acuna secret installation. Lastly, injection of Acuna may happen by methods of Trojans that privately get injected into the system and install harmful tools without the user’s permission.

Is there any method to avoid the injection of Acuna ransomware?

Although there is no 100% guarantee to avoid your computer from getting infected, there are some pieces of suggestions we wish to show with you. Firstly, be very cautious when you browse the web and especially while downloading totally free programs. Keep away from opening suspicious email attachments, especially when the sender of the email is not familiar to you.

Remember that some freeware installers may contain other unwanted utilities in the package, so they may be malicious. Make certain that your current antivirus and your entire operating system is always appropriately updated.

Of course, downloading pirated software is prohibited and may result in important damage to be made for your system. Hence, stay away from downloading cracked software. You are also strongly encouraged to reconsider your existing security software and potentially change to another security solution that can render far better services of defending your PC.

Below please find the quotation from the Acuna text file:

info.hta:

All your files have been encrypted!
All your files have been encrypted due to a security problem with your PC. If you want to restore them, write us to the e-mail: Cusapool@firemail.cc
Write this ID in the title of your message -
To increase the likelihood of receiving a response to your request, also duplicate your letters to the following e-mails:zezoxo@libertymail.net and togerpo@zohomail.eu
For quick and convenient feedback, write to the online operator in the Telegram messenger: @zezoxo
(The username of the Telegram account must be exactly the same as above.)
You have to pay for decryption in Bitcoins. The price depends on how fast you write to us. After payment we will send you the tool that will decrypt all your files.
Free decryption as guarantee
Before paying you can send us up to 5 files for free decryption. The total size of files must be less than 4Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.)
Attention!
To get guaranteed assistance in decrypting your files, please contact only the contacts indicated in this note, otherwise we are not responsible for the decryption!
Do not rename encrypted files.
Do not try to decrypt your data using third-party software, as this may result in irreversible data loss.
Decrypting your files with the help of third parties may increase the price (they add their fee to ours) or you risk losing money without receiving files decryption in return.
!!! When contacting third parties, we do not give a guarantee for decryption of your files !!!
How to obtain Bitcoins
The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click \'Buy bitcoins\', and select the seller by payment method and price.
hxxps://localbitcoins.com/buy_bitcoins

Also you can find other places to buy Bitcoins and beginners guide here:
hxxp://www.coindesk.com/information/how-can-i-buy-bitcoins/
==============================================

!! All your files are encrypted !!!
To decrypt them, send an email to this address: Cusapool@firemail.cc.
To increase the likelihood of receiving a response to your request, also duplicate your letters to the following e-mails:
zezoxo@libertymail.net and togerpo@zohomail.eu
For quick and convenient feedback, write to the online operator in the Telegram messenger: @zezoxo
(The username of the Telegram account must be exactly the same as above.)

Attention!
To get guaranteed assistance in decrypting your files, please contact only the contacts indicated in this note, otherwise, we are not responsible for the decryption!

Screenshot of files with “.[Cusapool@firemail.cc].Acuna” extension added by the ransomware:

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

1.Download GridinSoft Anti-Malware.

You can download 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.

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.

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

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

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.

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.

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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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