How to remove Ooss virus and restore encrypted files

This item was written to help our readers to get rid of Ooss ransomware. Here, we’ve gathered everything you need to learn about Ooss removal, together with knowledge on the decryption of encrypted data. Here we have the common advice on encrypting viruses that will help you to avoid problems in future.

Ooss ransomware virus

Ooss is the worst thing that might meet you on the Web It is a clear pillage, but with no living robbers involved: hackers get into your computer and take all they want, leaving you with a crippled hard drive that contains only spoiled files. Ooss ransomware is the purest instance of this type of viruses: it’s easy to pick up and almost impossible to beat, but we can help you with it. In our item, we'll explain to you the significant rules of encrypting virus' work and how it infected your machine. We'll tell you in which ways you can avoid encrypting virus' infestation, and how you can get your information back. Remember that many these viruses will never get beaten, and if you have one – the files might be already lost forever. Sometimes web-criminals make an error to create the switch to remove their virus or to reverse its actions. The customer might be guarded by some controls of his computer, and we will explain to you how to use it.

What is Ooss ransomware

The encrypting malware, also known as ransomware, are the programs that penetrate your systems and waste their files to ask a ransom from them. The penetration is usually performed through malspam campaigns or 0-day Trojans. E-mail scam is very easy to identify – you'll get it suddenly, and it will have a file in it. When it comes to 0-day vulnerabilities, it’s a bit harder – you'll never realize what it will be before the machine gets infected so that the most effective defensive manner is to daily download the newest updates for the OS and other utilities which you use.

The code of ransomware isn't a big deal, yet even the sloppiest ransomware is extremely perilous, and we can explain our point. They all apply the very powerful encryption algorithms. Viruses' goal is not to literally smug the files. It only has to get into the machine, encode the data and remove the original data, putting the encoded copies in their place. You can't use those data afterwards. You can’t use them and cannot repair them. We know not many manners to recover the files, and they all are written down in our article.

The point is that all viruses utilize the well-known encoding systems, such as the RSA and the AES. These two are very complex and cannot be decrypted. Of course, you can break them, having a hundred years of common computer’s working time or several years of operation on the most efficient computer in the world. We sincerely doubt that any of the given options suits a victim. The best technique to beat an encrypting virus is to decline its installation, and we will tell you how it could be done.

As soon as the encryption is performed, scammers give you a ransom message, and when you see it – it's too late. The best turn you can take now - to remove a virus from the system and attempt to reconstruct the files. We've said “try” because the probability to handle it without a decryptor are faint.

Ooss removal guide

You have to remove Ooss before you start working on data restoration as if it sticks on your PC – it will start encoding any file which enters the system. You should understand that every device you're sticking into the corrupted computer will become encrypted too. To evade this – delete the virus through following our plain removal instruction. Don't forget that the deletion will not reverse caused damage, and if you do it, you won’t be able to pay the ransom. It will be wise that as every dollar paid makes swindlers more confident in fraud schemes and increases their money to create intricate encrypting programs. The important thing is that if you’re forced to deal with fraudsters, they might just take the money and do nothing. They’ve recently decrypted your files, and you, surely, don't lean to transfer them the ransom on top of that.

Removal instruction

Step 1. Boot in 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

Ooss decryption instruction

When Ooss is removed from your device, and you're sure about it, it’s time to think about the restoration ways. From the very beginning, we have to notice that the sole 100% reliable technique is to load the safety copies. In case you had the copies of your information and the virus is fully removed – don't hesitate. Erase the spoiled files and load the copies. If there were no backups – the odds of recovering your data are critically low. The only way to get there is the Shadow Volume Copies. We're saying about the common service of Windows, and it saves every single file that was modified. You may find them via specific restoration utilities.

No doubt, all modern viruses can erase these files, but if you use a profile without master rights, the ransomware just had no ability perform that not having your order. You may recall that sometime prior to the display of a scammer's message you've seen another dialogue window, offering to apply changes to your computer. If you've declined those changes – your SVC are safe and waiting for you, so they can be found and used with the help of such utilities as ShadowExplorer or Recuva. You can easily find them both on the Internet. Both of them have their official pages, so you better get them there, with tested guides. If you want more information on this topic – you might look at our article about file restoration: article about files decryption.

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