How to remove Kasp virus and restore encrypted files

Kasp ransomware virus

Kasp ransomware already penetrated hundreds of laptops in different parts of the world with help of basic method: false messages with dangerous attachments. Sometimes hackers use exploits to infect the PC, but they are speedily fixed. After penetration, the virus examines the hard disc, defines the amount of files to be cyphered and their approximate price. At the moment, any new virus can encrypt text, audio, image and video files in all most used formats. Special attention is attracted to business documents, because medium and large companies are the key target for fraudsters. All programs on hard drive will be untouched because hackers are interested only in information. Encryption is executed with the help of world-known AES and RSA algorithms, and it is so sophisticated that that it can't be bruteforced. This is the basis for impressive success of ransomware in last years: common user, even having a fairly good knowledge of the PC, will never be able to get back the files, and will have no choice except paying to criminals. The only method to restore the information is to hack the fraudster's website and obtain the encryption keys. Also there's a chance to withdraw the keys via defects in viruse's program code.

That entry is dedicated to virus called Kasp that gets into customers' machines around the world, and corrupts the files. In this page we've compiled full information about what is Kasp, and how to get rid of Kasp from the workstation. Furthermore, we will explain how to get back the corrupted information, if possible.

There is one common feature for all types of harmful programs: it is much simpler to dodge it than to cure it. For encrypting viruses it's most relevant, since, in contradistinction to normal viruses, when you uninstall ransomware from the system, the effects of its actions do not disappear anywhere. To guard your information, you need to keep in mind a three elementary regulations:

    • Heed to the dialog boxes. If the laptop is penetrated by ransomware, it will seek to eliminate all copies of your files, to decrease the possibility of restoration. Anyway, removal of copies requires admin rights and operator's verification. The second of thinking before accepting the checkbox can save your data and your money.
    • Attentively study your mailbox, particularly the messages that have files attached to them. If the message was sent from an unknown address and it notifies about obtaining some prize, a lost package or anything similar, this could be ransomware. The second very popular sort of fraud letters is a "business letters". lawsuits, Bills for services or products, reports, summaries and other sensitive files don't come without warning, and the addressee should know the sender. Otherwise, it is a scam.
    • Monitor the performance of your laptop. It requires a lot of hardware power to encode the files. When the ransomware starts to operate, the PC slows down, and the encryption process is visible in Process Manager. You can anticipate this moment and switch off the workstation before data will be completely spoiled. Of course, some files will be lost, but the other part of them will remain intact.

We draw your attention to the fact that the removal of the virus is only the, first step, which is required for the normal operation of the computer. To decrypt the information you'll need to read the advices in the below section of our article. To eliminate Kasp, you need to start the workstation at safe mode and scan it through antivirus software. We do not suggest trying to remove ransomware manually, since it has many protection mechanisms which can counteract you. Qualitative malware are able to fully remove cyphered data, or part of it, if user tries to uninstall the virus. This is extremely bad, and the below guide 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


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 fulfilled all conditions, mentioned in previous part of an entry - it's time to decypher the files. We're not able to decrypt the files, but we'll restore them through Windows functionality and the particular programs. There are the some exceptions, but generally file recovery needs lots of time and efforts. If you don't want to linger and are willing to recover the information manually - here's the full entry on that topic.

To restore information, follow the article about files decryption.

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