Whenever users get infected with malware, the experience is very stressful. When they get infected with the likes of Arena Ransomware, it might be even frightening. This program is a ransomware infection, and such computer security threats are really thorough about what they want and what they do. They can encrypt user’s files with a powerful algorithm and then demand that they pay a ransom fee. What’s more, removing Arena Ransomware will not be enough to get your files back. They will not revert to their original state automatically. Thus, you need to be prepared mentally in case it is not possible to restore your data.
Unlike most of the ransomware programs that tend to get distributed via spam email, Arena Ransomware is more likely to come via Remote Desktop Connection. This is the tactic that was used by Crysis Ransomware. Judging from our research, Arena Ransomware is yet another version of the original program that was released more than eighteen months ago. However, since new versions of the same program usually employ the same distribution methods, it is very likely that the malicious ransomware program gets installed on your computer manually through insecure remote connections. Therefore, it just proves how important it is to employ safe software.
Why is Arena Ransomware there? Well, the program barges into target systems to make some money. Upon the installation, it scans the infected computer looking for all the files it can encrypt. Once the targets are indicated, the program runs the encryption algorithm that scrambles the information in your files and makes them unreadable. Once the encryption is complete, all the affected files get an additional extension, and your filenames will look something like this: document.docx.id-XXXXXXXX.[firstname.lastname@example.org].arena. Please note that the 8-character alphanumeric code in the extension will be different from one computer to another because each affected system gets a unique ID.
After the encryption, Arena Ransomware drops a ransom note under the filename Info.ha in the %AppData% directory. When you open the ransom note, here is what you see:
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 email@example.com
Write this ID in the title of your message XXXXXXXX
In case of no answer in 24 hours write us to theese e-mails:firstname.lastname@example.org
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.
It might look that the people behind this infection are willing to give you back your files if you pay the ransom fee, but that is hardly the case. It is far more likely that they will collect the money and scram, leaving you with an infected computer and locked data.
Computer security experts say that after ransomware infection, your focus should be on malware removal and file retrieval from a system backup. Sometimes this infection fails to delete the Shadow Volume Copies within your computer, and then you can refer to a professional technician to restore your files from those copies. On the other hand, if that does not work, then you should look for other places where you could have saved copies of your data. The most important thing is to refrain from paying the ransom fee.