Vvoa ransomware – a new variant of the ever-expanding Djvu family
Vvoa ransomware is a computer virus that locks victim files until a ransom is paid. The cryptovirus derives from the wicked Djvu ransom family. First detected in 2016, this family keeps on growing. To this day there are more than 250 versions and there's no telling when will it stop. Viruses from this family typically use an army-based RSA[1] algorithm for encryption. Previous versions were decryptable, but recent years show activities of non-decryptable malware that uses on powerful encoding methods and online IDs while locking files. Those include Iiss, Agho, Jdyi.
As soon as Vvoa ransomware virus lands on a targeted device it starts the encryption process immediately, after that's done all files are inaccessible and renamed – a .vvoa extension is appended. Subsequently, a ransom note named _readme.txt is created in all affected folders. Developers of the virus in the said note tell their victims what happened to their devices and what needs to be done to get their files back.
| Name | 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 |
| Criminal contact info | Perpetrators can be contacted via two given emails: helpmanager@mail.ch, restoremanager@firemail.cc |
| MAlware removal | To remove Vvoa ransomware use a trustworthy anti-malware software |
| System fix | Once Vvoa virus removal is completed, it is highly recommended using the FortectIntego tool to get your device back in shape |
The creators of Vvoa ransomwareare kind enough and offer to send them one file from the infected computer. They would send a decrypted file back, thus proving that the decryption tool really exists and that they have it. Furthermore, they are enclosing a link to a video to see the decryption in action. The ransom amount is 480 USD but only if the victims contact the criminals within 72 hours, if not the price is doubled to 960 USD.
However tempting it might be to pay the criminals and retrieve your files, the FBI warns[2] that such action doesn't guarantee that you will receive the promised tool, and additionally increases criminal's motivation to expand their attacks and create more sophisticated malware than Vvoa file virus.
We recommend to remove Vvoa ransomware automatically using SpyHunterCombo Cleaner or MalwarebytesMalwarebytes anti-malware applications. These are trustworthy programs that will safeguard your future browsing experiences if you update their virus databases regularly.
After Vvoa ransomware removal, don't rush to restore your data from the backups, experts[3] advise using the FortectIntego tool to perform a full system scan and find what the file locking parasite has done to system files and its settings. If left unattended, this might lead to crashes, severe lag, and other symptoms exhibited by your device.
Ransom note with all demands and instructions state:
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-sBwlEg46JX
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:
helpmanager@mail.chReserve e-mail address to contact us:
restoremanager@firemail.ccYour personal ID
Difference between offline and online IDs that affects .vvoa file decryption
It is known that since August 2019, Djvu family is not using offline IDs, in most cases. These victim IDs or decryption keys are used when a particular set of numbers get generated during the file-locking procedure. Previously helpful decryption tools relied on offline keys and made victims happy when most of their data got recovered easily. Vvoa ransomware got released in November 2020 – it is not decryptable.
Online IDs are unique for each victim, so even when researchers obtain one decryption key – there is no way to recover other data. Decryption keys received from virus developers' can work for only one machine and those files affected on the computer. You need to either risk and pay Vvoa virus creators for the key or go for other methods.
Decryption tool development takes time. Other ways to obtain such decryption keys without paying criminals is to wait for the official file recovery program or law enforcement actions. It takes even longer. We recommend removing Vvoa file virus with anti-malware tools and recovering files yourself or with the help of third-party tools, PC options.
File recovery after Vvoa ransomware infection
Having your files locked is a nightmare. That being said, contacting the criminals, or even worse – paying the ransom isn't the only solution. Unfortunately, deleting the malware won't unlock your Vvoa virus files, but we're here to help.
The first solution after your device is virus-free and you've done the whole system checkup routine, mentioned in the paragraph below, is to restore your files from backups. If you didn't keep backups, transfer all virus affected .vvoa files to offline storage and either use one of our suggested recovery methods below this article or wait for a public decryption key to be available.
Another method to remove .vvoa extension from your files is using Emisoft created decryption tools. They specialize in such software and constantly updates their product. So if there's no decryptor available now, you should either check back with them or with us to see any updates on this matter.
Other techniques are described at the bottom of this article and require your attention to details. Remember to terminate Vvoa ransomware before any data recovery options. Emsisoft's decrypter or media file repair tool can work for some of the files, but not always.
System restore and Vvoa ransomware removal
99% of Djvu family ransomware is distributed by illegal activations toolkits for licensed software (aka cracks) and other files on torrent websites. Please refrain from using those sites. Support the developers of your desired programs by buying them directly from official websites.
Users should always have their backs watched by trustworthy anti-malware software. We recommend using reliable anti-malware apps like SpyHunterCombo Cleaner or MalwarebytesMalwarebytes to remove Vvoa ransomware from infected devices automatically. These apps will locate, isolate, and delete the computer virus and all its allocated files spread out through the device.
As good as anti-virus software is at detecting and removing infections, it can't fix registry and other system files and settings. To restore your computer to a pre-contaminated phase use the FortectIntego tool. It will automatically find and restore whatever the Vvoa ransomware virus has done to system-related settings/files.
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