How to remove Mool virus and restore encrypted files

Mool ransomware virus

Mool ransomware had penetrated hundreds of computers around the world through easiest manner: false e-mails with dangerous attachments. Occasionally hackers use zero-day vulnerabilities to penetrate the PC, but they are quickly fixed. When infection takes place, the virus scans the PC memory, determines the quantity of folders to be encrypted and their approximate cost. Nowadays, any new ransomware can cypher video, image, text and audio information in all known formats. Special attention is attracted to business information, since businessmen are the key target for hackers. All programs on PC will be untouched because hackers want only information. Encryption is executed via famous RSA and AES algorithms, and it is so complex that that decipherment of data with no key is impossible. Such complexity gives basis for such an incredible effectuality of ransomware in last years: usual customer, even having a fairly good knowledge of the PC, will never get back the data, and will need to pay the price. The sole method to get back the information is to crack the scammer's website and retrieve the encryption keys. Some experienced malware researchers can get the keys due to defects in viruse's program code.

This entry is dedicated to Mool ransomware which gets onto customers' computers around the world, and encrypts their files. Here we've gathered full info on what is Mool, and how to delete Mool from your PC. Besides, we will explain how to get back the corrupted information and is it possible.

The computer knowledge is quite important in our world, since it assists customer to guard the laptop from undesired programs. Unfortunately, most people understand the importance of PC knowledge only when ransomware penetrates their machines. To shield yourself, you have to understand these three elementary principles:

    • Heed to the pop-up windows. If the workstation is penetrated by virus, it will endeavour to eliminate the shadow copies of the files, to make the recovery impossible. The deleting of shadow copies requires administrator rights and acceptance from the operator. Thus, if you do not confirm alterations from a suspicious program at the proper time, you will save the chances to decrypt all encrypted data free of charge.
    • Attentively study your mailbox, particularly the messages that have files attached to them. If you don't know the person who send the message and it tells about earning any prize, a lost package or something like that, this might be a scam letter. The second most efficient sort of scam messages is a "business letters". lawsuits, complaints, Invoices for goods and services, summaries and similar important information cannot be sent without warning, and the addressee should know the sender. In all other cases it is a fraud.
    • Monitor the performance of your computer. It requires much of CPU resources to encode the files. If you notice a significant reduction in workstation power or detect a suspicious process in the Process Manager, you should switch off the laptop, launch it in safe mode, and scan for threats. This, in case of infection, will save some of your data.

You should understand that deleting the virus is only the first and required step for the safe operation of the computer. To decrypt the information you should follow the advices in the following chapter of this entry. To get rid of any ransomware, user needs to load the computer at safe mode and check it through antivirus. We don't advise trying to remove ransomware in manual mode, because it has many defensive mechanics which will counteract you. Many encrypting viruses are able to fully delete encrypted information, or part of it, when trying to uninstall the virus. This is very undesirable, and the following instruction will assist 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

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

After erasing the virus from the PC, you should restore the corrupted data. Actually, this is not about decryption, since the encrypting algorithms used by web-criminals are very complicated. There are the lucky chances, but most of the time data recovery needs plenty of time and money. If you picked the manual information recovery - read this article, which describes all the most effective methods.

To restore information, follow the article about files decryption.

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