Coos Ransomware
Coos Ransomware is a regular ransomware infection that comes from the Djvu Ransomware family. When malicious infections belong to one family, they usually are alike. Thus, Coos Ransomware happens to be similar to Bopador Ransomware, Lssr Ranoswmare, Pahd Ransomware, and several other programs that come from the same family of threats. Ransomware programs are very annoying infections because they make it difficult to recover affected files. However, there still is something you can do about the Djvu family threats because it depends on how they encrypted target files.
Why Does One Family Have So Many Infections?
It is actually common for ransomware families to have many "members." It is not only because ransomware developers create many threats. It is common for the ransomware code to be up for sale, and any owner might be able to modify it based on what they need it to do. Hence, Coos Ransomware could be one of the many ransomware infections that were created to be sold for a hefty price.
At the same time, when you have one malicious code, it is easy to tweak it and have multiple seemingly identical infections circulating around. We can see that Coos Ransomware is very similar to all the other Djvu Ransomware family programs that have been released before. Releasing such infections happens to be cost-effective, so it is not surprising.
One of the reasons we can tell that Coos Ransomware is related to all the other Djvu Ransomware infections is its ransom note. Here’s an extract from it:
The only method of recovering files is to purchase decrypt tool and unique key for you.
<…>
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.
The wording in the ransom note used by Coos Ransomware is exactly the same as used by other infections from the same group. Djvu Ransomware infections also use a file extension to indicate that the files have been encrypted. These extensions are unique to each program, and the one used by Coos Ransomware is .coos (hence the program’s name).
How to Deal With the Coos Ransomware Infection?
The truth is that it is rather easy to remove Coos Ransomware from the infected system. The main problem is what to do with your encrypted files. There is actually a public decryption tool that was created for the first STOP Djvu Ransomware infection, and it MAY unlock some of the files encrypted by all of its spawns. The catch is that the infection has to use an offline encryption key for the public decryption tool to work. If Coos Ransomware has employed an online encryption key, the public decryption tool may not be able to decrypt the files.
For that reason, it is vital to maintain a file backup. You can regularly update your files on a cloud drive or an external hard drive. But the point is that you must not give criminals a chance to hold your data against you.
To remove Coos Ransomware for good, acquire a powerful malware remediation tool, and do not hesitate to address a professional technician if you need further assistance with malware removal and file recovery. Ransomware can definitely make up step up your cybersecurity game.
