![Ransom note of Crysis’s Arena: 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 [contact-email]
Write this ID in the title of your message [your-id]
In case of no answer in 24 hours write us to theese e-mails:[contact-email]
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 decryption 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 10Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.)
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.
https://localbitcoins.com/buy_bitcoins
Also you can find other places to buy Bitcoins and beginners guide here:
http://www.coindesk.com/information/how-can-i-buy-bitcoins/
Attention!
Do not rename encrypted files.
Do not try to decrypt your data using third party software, it may cause permanent data loss.
Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.](https://www.computips.org/wp-content/uploads/2017/12/arena-ransomware.png)
What is Arena ransomware
At least two ransomware variants use .arena extension for encrypted files: Arena from Crysis (Dharma) ransomware family and Arena from CryptoMix family. Crysis’s Arena usually infects computers through Remote Desktop Services (RDP). It encrypts files using strong encryption algorithm that is considered unbreakable and upends .id-[your-id].[contact-email].arena to file names. From the information we gathered, users are asked to pay 0.5 bitcoins in the first 24 hours and 1 bitcoin later. This Arena will launch automatically every time you login to Windows and will encrypt new files that were created since its last run. Crysis’s Arena will create ransom notes called info.hta and FILES ENCRYPTED.txt (with a short text “all your data has been locked us You want to return? write email [contact-email]”).
CryptoMix’s Arena modifies names of encrypted files into hexadecimal strings and upends .arena extension. Its ransom note is named _HELP_INSTRUCTION.TXT.
Unfortunately, both Arena versions don’t have free decrypters as of now. However, you may try some other methods of recovering encrypted files.
