How to remove Ferosas virus and restore encrypted files

Ferosas ransomware virus

Ferosas is a new extension of DJVU as many others. At the end of May there are around five different variations of the ransomware like Radman and Dotmap. It's absolutely equal including text message, only the corrupted file name being changed to the Ferosas ending. The full price to return files is about 980 dollars, but if victim agrees to pay in two days, the sum will be 490$. Very generous suggestion from hackers.

ATTENTION!

Don’t worry my friend, 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:

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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” folder if you don’t get answer more than 6 hours.

To get this software you need write on our e-mail:

vengisto @ india.com

Reserve e-mail address to contact us:

vengisto @ firemail.cc

Algorithm of encryption is the same, but it's not mean that decryption will be easy. There is no special decryptor, so we can only act three ways: to pay to hackers (and it's the worst variant), to use backup copies or programs that has an ability to restore erased information, or to wait until antivirus companies will make a decryptor. Unfortunately, none of the abilities looks pretty, but that is.

To understand how virus infects the system, we needs to know the most spread penetrations way. It's mail spam when user thinks that he open legal e-mail, but instead there is a malicious malware. Other is a zero day vulnerability to prretend this, you have to update system in time.

Summary

 

Removal instruction

Malware removal is not answer to the whole problem - it is only a one-step on the long road until the complete data recovery. If you get rid of malware, you will not return the data instantly, it will demand additional measures written down in the "How to restore encrypted files" paragraph. In case of ransomware, we do not provide the manual removal tips, since its complexity and the likeliness of errors will be too high for regular user. Some viruses cannot be uninstalled even with help of AV-tool, and have many efficient mechanisms of protection. The most effective viral defensive manner is the deletion of data in event of data decryption or virus deletion attempt. This is extremely bad, and the following paragraph will help you to avoid it.

Step 1. Boot into Safe mode

Safe mode

Start -> Msconfig.exe

Safe mode. Step 1

On the tab Boot select Safe boot

Safe mode. Step 2

Step 2. Check Startup folder

Start -> Msconfig.exe ->Disable unknown programs in the Startup tab

Startup

Step 3. Check hosts file

Modify hosts file, that located in C:\Windows\System32\drivers\etc\ .

Hosts file.Step 1

Open the file with Notepad and delete suspicious strings.

Hosts file.Step 2

It has to look like this:

Hosts file.Step 3

Step 4. Scan the system with antiviral scanner

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Step 5. Disable Safe mode

Start -> Msconfig.exe ->Disable Safe boot in the Boot tab

Deactivate Safe mode

How to restore information

After removing the virus from the PC, user has to restore the encrypted information. Actually, this is not about decipherment, as the encrypting manners used by scammers are very complicated. Commonly, to restore the data, you should ask for help on specialized communities or from famous virus researchers and AV program vendors. If you picked the independent file recovery - read this item, which shows all the most efficient methods. To restore information, follow the article about files decryption.

What is ransomware virus

It is the dangerous software penetrating computers mostly through e-mail spam and Trojans. Occasionally web-criminals use zero-day vulnerabilities to penetrate the system, but major program vendors promptly correct them. After penetration, ransomware reviews the PC memory, determines the number of files for encryption and their approximate value. At the moment, each modern virus can cypher image, text, video and audio files in all known formats. Ferosas corrupts all folders, but those that look like business correspondence go first. Ferosas targets only information, and does not spoil the programs, so that the user can use his PC to make the payment. Encryption is performed through world-known AES and RSA algorithms, and its intricacy is so high that it can't be bruteforced. Such complexity is the basis for unbelievable effectuality of this sort of viruses in recent years: common customer, even if he has a fairly good knowledge of the PC, won't ever be able to recover the files, and will have no way out except paying to scammers. The sole manner to decrypt files is to crack the fraudster's webpage and retrieve the master key. Sometimes it is possible to obtain these keys due to defects in viruse's program code.

The computer knowledge is very substantial in progressive world, since it helps you to protect the PC from undesired software. For ransomware it's very important, because, unlike most viruses, after removing ransomware from the computer, the effects of its actions won't vanish anywhere. It's very easy to decrease the chances to get ransomware if you'll follow these rules:

    • Do not ignore the signs that your workstation shows. It consumes a lot of hardware power to encrypt the information. In few seconds of infection, the workstation slows down, and the encryption process appears in Process Manager. You can catch this moment and unplug the system before information will be totally damaged. This, in case of penetration, will save a lot of your data.
    • Attentively inspect your mailbox, particularly the messages which have attached files. The most popular pattern of scam e-mails is the notification about prize winning or package receiving. The second most efficient type of fraud messages is a "business messages". It is OK to be interested and open the message even if it's sent to the incorrect address, but don't forget that a single click on the viral file may cost you a lot of efforts, time and money.
    • Don't admit any alterations to your system, originating from strange software. One of the simplest methods of file recovery is the restoration via Shadow Copies, and Web-criminals have included the removal of shadow copies into the default features of malware. However removal of copies requires administrator rights and verification from the operator. The second of thinking before verifying the dialogue box can save your information and your time.

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