How to remove Msop virus and restore encrypted files

Msop ransomware virus

The item is about Msop virus that infects customers' computers around the world, and cyphers their files. In this item we've gathered important information on Msop's essence, and the removal of Msop from your workstation. Except that, we'll explain how to get back the corrupted data, if possible.

Msop ransomware had infected hundreds of machines in many countries through easiest manner: false e-mails with dangerous attachments. Sometimes hackers use zero-day vulnerabilities to infect the computer, but they are promptly corrected. After penetration, ransomware examines the computer memory to find the files to be cyphered and their general value. At the moment, any new virus is able to cypher text, video, image and audio information in all popular extensions. Special attention is attracted to business files, because medium and large companies are the priority objective for criminals. Virus corrupts only files with information, and doesn't touch the programs, so that the victim can pay the ransom with help of his PC. Encryption is executed through well-known AES and RSA algorithms, and its intricacy is so high that it cannot be bruteforced. Such complexity creates root for such an incredible efficiency of ransomware in last years: common user, even having a fairly high knowledge of the PC, won't ever get back the files, and will have no choice except paying to scammers. The sole way to decrypt files is to crack the scam website and retrieve the master key. Some experienced malware specialists can withdraw encryption keys through flaws in viruse's program code.

The computer knowledge is extremely significant in our century, because it helps you to protect the workstation from computer viruses. For encrypting viruses this is most relevant, because, in contradistinction to regular viruses, when you delete ransomware from the system, the fruits of its actions do not disappear anywhere. To shield your computer, you should remember a three basic regulations:

    • Closely inspect your e-mails, particularly the messages that have attached files. The most effective template of scam messages is the story about prize winning or package receiving. Also you should be attentive with business correspondence, particularly if the sender and the content is unknown. summaries, reports, Invoices for goods or services, lawsuits and suchlike specific documents cannot be sent without warning, and the receiver should know the sender. In most of the cases it is a fraud.
    • Take notice to the pop-up windows. If the machine is polluted by malware, it will seek to eliminate all copies of the files, to decrease the chances of recovery. However deletion of shadow copies requires admin rights and your confirmation. The moment of thought before accepting the changes might save your information and your efforts.
    • Don't disregard the symptoms that your computer shows. Information encrypting is a intricate process that needs a lot of system resources. If you notice a strange decline in PC capacity or notice a unknown string in the Process Manager, you need to unplug the PC, load it in safe mode, and run the antivirus. Of course, the certain amount of files will be damaged, but you will protect the other part.

Malware uninstalling isn't solution of the whole issue - it's just a one step from many before the total file recovery. If you uninstall Msop, you will not get back the data immediately, it will need more actions described in the next section. To get rid of any virus, you need to boot the computer in safe mode and run the scanning via antivirus software. High grade viruses can't be eliminated even with help of AV-software, and have lots of serious mechanics of protection. Some malware can easily remove encrypted information, or part of it, when trying to eliminate the program. To avoid this, abide to the guide under this paragraph.

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

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

If you made all steps, mentioned in previous paragraph - it's time to restore the information. It's impossible to decrypt the information, but we'll get them back through OS functionality and the particular programs. Generally, to get back the information, you should seek assistance on anti-malware forums or from famous malware researchers and antiviral software manufacturers. If you are more interested in the by-hand information restore - read our item, which describes all the safest ways.

To restore information, follow the article about files decryption.

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