This is a virus that attack and lock the files of any system and request for ransom to provide access to the files. This is stated to be the ransom of djvu ransom family which has got lot many versions and the first attack happened in the year 2016. Till now this is attacking the system and further the same is recovered with the backup and going for the recovery tools weren't found effective. It is good to be on the safer side having a backup, so that even if something goes wrong the recovery can be made with ease. Next thing is not to open unwanted e-mails that are from unknown users. Most of the spread happening through the emails.
I came across this virus reading the term
Cryptovirus. I don't know for what reason this has been termed as cryptovirus.
Vvoa Ransomware detailsName - Vvoa ransomware
Type - Ransomware
Family - Djvu ransomware
Appended File Extension - All non-system files are appended with .vvoa extension
Ransom Note - _readme.txt is created in all contaminated folders
Ransom Amount - Cybercriminals ask for 980 USD, or 480 USD if paid within 72 hours of infection
Contact info - Perpetrators can be contacted via two given emails:
helpmanager@mail.ch,
restoremanager@firemail.ccMalware Removal - To remove Vvoa ransomware use a trustworthy anti-malware software