Katyusha Ransomware Removal Guide

Do you see .katyusha appended to your files? Is it impossible to open them? Can you locate new .html and .txt files on your PC? If so, Katyusha Ransomware must have entered your computer successfully. This threat is a nasty computer infection that will encrypt all your personal files after the successful entrance. “What does it want from me?,” you may ask, and the answer to this question is obvious. Such infections are developed by cyber criminals and actively distributed through the web with the intention of obtaining money from users. Cyber criminals know that you will not agree to send them money for nothing, so they use ransomware infections to lock the most valuable users’ files and then offer them to purchase a tool that can unlock files. Nobody knows whether they really have it and whether this tool will reach you even if you make a payment, so if you know you could easily live without those encrypted files, you should definitely refrain from transferring money to cyber criminals. Even though a free decryptor is unavailable, you could restore your files without difficulty if you have their copies. Make sure you transfer these copies to your computer only after the Katyusha Ransomware removal because this infection might lock those fixed files once again. We are sure you do not want the ransomware infection to ruin them again, do you?

Katyusha Ransomware infiltrates computers to encrypt files on them. It performs this malicious activity in the first place after entering the system successfully, so we are 99% sure that you will find out about the entrance of this malicious application after you find your personal files encrypted too. To be more specific, the ransomware infection should encrypt all valuable files, including documents, music, pictures, and more. If you see that your file has the .katyusha extension appended, it means that it has already been encrypted. This is, in fact, only one of two clear signs showing that Katyusha Ransomware has entered your system successfully. You should be able to locate _how_to_decrypt_you_files.txt and _how_to_decrypt_you_files.html on your computer too if Katyusha Ransomware is the ransomware infection you have encountered. These files contain an identical message, aka a ransom note. You will first get a short explanation about what has happened to your files: “All your documents, photos, databases and other important personal files were encrypted!.” Then, you will find out what you can do to fix them: “Please send 0.5 bitcoins to my wallet address: 3ALmvAWLEothnMF5BjckAFaKB5S6zan9PK .” Only 3 days are given to users to purchase the key and the special decryptor. If the payment is not made within the given time, it will no longer be possible to decrypt files: “we will no longer support decryption” and the encrypted data “will be open to the public download.” You do not know whether you will get anything from cyber criminals, so if you have found unimportant files locked, our piece of advice for you would be not to send a cent to cyber criminals behind this nasty infection. You could restore your files from a backup if you have it for free, but no matter what you decide to do, you will have to erase the ransomware infection from the system yourself. Nobody will come to erase it for you.

Ordinary distribution methods like spam emails can be used to distribute Katyusha Ransomware as well, research has shown; however, there is one unique thing about its distribution – the ransomware infection might also be spread through such well-known exploits as Doublepulsar and Shadowbrokers\EquationGroup. It is definitely not a piece of cake to protect the system against sophisticated malware, so you should disconnect your PC from the Internet until you install an antimalware tool on your computer. Hopefully, you do not postpone doing that. This tool will prevent ransomware infections from entering your system too – your files will not get encrypted ever again.

The sooner you remove Katyusha Ransomware from your system, the better even if it does not mean that your files will be encrypted. To remove this threat, you first need to erase its files, including the malicious file you have launched, and then take care of ransom notes dropped on your system. Use our instructions provided below if you do not know anything about the ransomware removal.

Katyusha Ransomware removal guide

1. Open Windows Explorer (tap Win+E).
2. Go to %WINDIR%\Temp (type the path in the URL bar and then press Enter).
3. Delete Katyusha.dll.
4. Remove ktsi.exe (it may use another name).
5. Check your Downloads folder and delete all suspicious files you have downloaded recently.
6. Delete _how_to_decrypt_you_files.txt and _how_to_decrypt_you_files.html dropped on your PC.
7. Empty Recycle Bin.