How to remove Zoldon virus and restore encrypted files

Zoldon ransomware virus

Zoldon is the malicious program penetrating laptops mostly with help of e-mail spam and Trojans. Sometimes web-criminals use exploits to get into the system, but they are speedily corrected. When infection takes place, ransomware examines the hard disc, defines the quantity of files to be encrypted and their general cost. At the moment, any new ransomware can cypher audio, text, image and video info in all popular extensions. Extra attention is attracted to businesslike information, since medium and large companies are the main objective for scammers. Zoldon targets only information, and doesn't touch the software, so that the user can use the machine to make the payment. The operation is made via famous AES and RSA algorithms, and it is so complicated that that it cannot be bruteforced. Such complexity is the reason for such a stunning effectuality of ransomware in last years: usual customer, even having a very good knowledge of the PC, will never recover the data, and will have no choice except paying the ransom. The only way to get back files is to hack the fraudster's webpage and retrieve the encryption keys. Also there's a way to withdraw these keys due to defects in viruse's program code.

This item is dedicated to ransomware called Zoldon that infects machines around the world, and cyphers their data. Here you can find full info on what is Zoldon, and the deletion of Zoldon from your workstation. In addition, we'll explain how to recover the corrupted data and is it possible.

For any types of computer viruses, one thing is correct: it's way easier to avoid it than to neutralize its consequences. For ransomware it's very relevant, as, in contradistinction to most malicious software, after removing ransomware from the system, the effects of its doings do not vanish anywhere. To defend your files, you have to understand these few elementary rules:

    • Do not neglect the signs that your machine shows. It takes much of CPU resources to encrypt the data. When the ransomware is starting to work, the machine slows down, and the encryption process emerges in Process Manager. You may anticipate this moment and unplug the system before information will be fully lost. Naturally, the certain amount of information will be lost, but you will have the other part.
    • Attentively study your mailbox, particularly those messages that have attached files. If the letter was sent from an unknown address and it is about obtaining some prize, a lost parcel or anything similar, this could be a scam letter. You also should be watchful with business-related e-mails, particularly if the sender's address and the content is unknown. It is natural to take an interest and click on the letter even if it might be not for you, but remember that one click on the attached file may cost you lots of time, money and headache.
    • Do not accept any changes to the system, coming from strange programs. One of the simplest methods of data recovery is the restoration via Shadow Copies, and Web-criminals have added the removal of those copies in the default features of ransomware. The deletion of copies requires admin rights and your verification. So, not confirming alterations from a strange program at the proper moment, you will keep the chances to restore all corrupted data for free.

Malware removal is not solution of the whole problem - it's just a one turn in the long road before the total data restoration. If you delete malware, you won't recover the data immediately, it will require more actions written down in the "How to restore encrypted files" part. To uninstall Zoldon, you have to load the computer in safe mode and scan it via AV-tool. We don't recommend anyone to eliminate Zoldon manually, because it has numerous security features that will interfere you. The very effective viral defensive technique is the removal of data in case of file decryption or virus removal attempt. This is very unwanted, and the following paragraph will help you to cope with it.

Removal instruction

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


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

After uninstalling Zoldon from the machine, user has to recover the corrupted information. We're not able to reverse the encryption, but we'll get them back using Windows functionality and the extra programs. There are the few chances, but generally data restoration takes a lot of time and money. If you can't linger and are ready to restore the data in manual mode - here's the full entry on that topic.

To restore information, follow the article about files decryption.

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