.Kook .Kook is a malicious computer program used as a blackmailing tool that is able to block access to important user data. .Kook launches a data encryption process the moment it enters the system and usually shows no symptoms while encrypting the targeted files. Upon finishing the file-locking process, the virus informs its victims about the situation they are in by generating a big banner that contains a ransom message alongside instructions on how to carry out the payment. Since oftentimes the ransom payments required by Ransomware viruses are demanded in the Bitcoin currency, there will also likely be instructions on how to first buy Bitcoins so that you can pay the ransom with them. In some cases, it is possible that, instead of a banner, the ransom message is presented to the user in the form of a notepad file placed on the computer\u2019s Desktop or inside the folders that contain the encrypted data. According to the message once the user pays the specified sum by strictly following the hackers\u2019 instructions a unique decryption key would be sent to them, which key would allow the user to regain their access to the locked files. Obviously, the whole purpose of the virus is to make you pay for that key. This, however, doesn\u2019t mean that, after you pay, you would receive the promised key. The hackers behind .Kook, .Erif, .Kuus care about the money they are supposed to receive from their victims and not about whether or not the victims eventually manage to recover their data. Therefore, our suggestion for you is to avoid paying the ransom unless you really have no other choice. The .Kook virus The .Kook virus is a Ransomware variant that uses a new type of data encryption to make its victim\u2019s files inaccessible. The .Kook virus can be removed but even after its removal, the files it has encrypted will continue to be unavailable. This is one of the main issues that users face when they get hit by this type of Ransomware threat. Getting the virus removed is still essential because it would prevent it from locking up any new files in the future. However, to restore your current data, removing .Kook would likely not be enough. The .Kook file decryption The .Kook file decryption is only possible through the use of the matching decryption key that the virus has generated for the specific computer. The .Kook file decryption cannot be completed using a key received by another victim of this Ransomware. However, in some cases, you may not need to obtain the decryption key whatsoever. In our guide, right after the .Kook removal instructions (which we strongly advise you to complete), you will find linked several file-recovery methods that can be used to potentially restore the encrypted data without having the matching access key. Unfortunately, due to the advanced nature of viruses like .Kook, we cannot promise that these methods will work. Still, you won\u2019t know until you try, so it is recommended that you first opt for these alternatives instead of going directly for the ransom payment. SUMMARY: Name .Kook Type Ransomware Danger Level High\u00a0(Ransomware is\u00a0by far the worst threat you can encounter) Symptoms It is nearly impossible to notice Ransomware before it locks up your files because of an overall lack of visible symptoms. Distribution Method Fake social media and email messages, pirated software, Trojan backdoors, and more. Data Recovery Tool Not Available Detection Tool Remove .Kook Ransomware Some of the steps will likely require you to exit the page. Bookmark it for later reference. Reboot in\u00a0Safe Mode\u00a0(use this guide if you don't know how to do it). WARNING! READ CAREFULLY BEFORE PROCEEDING! Press CTRL + SHIFT + ESC at the same time\u00a0and\u00a0go to the\u00a0Processes Tab. Try to determine which processes are dangerous.\u00a0 Right click on each of them\u00a0and select Open File Location. Then scan the files with our free online virus scanner: After you open their folder,\u00a0end the processes\u00a0that are infected, then delete their folders.\u00a0 Note:\u00a0If you are sure something is part of the infection - delete it, even if the scanner doesn't flag it. No anti-virus program can detect all infections. Hold the Start\u00a0Key\u00a0and\u00a0R\u00a0- \u00a0copy +\u00a0paste the following and click OK: notepad %windir%\/system32\/Drivers\/etc\/hosts A new\u00a0file will open. If you are hacked, there will be a bunch of other IPs connected to you at the bottom. Look at the image below: If there are suspicious IPs below "Localhost" -\u00a0write to us in the comments. Type msconfig in the search field and hit enter.\u00a0A\u00a0window will pop-up: Go in\u00a0Startup --->\u00a0Uncheck\u00a0entries that have "Unknown" as Manufacturer. \tPlease note that ransomware may even include a fake Manufacturer name to its process. Make sure you check out every process here is legitimate. Type Regedit in the windows search field and press Enter.\u00a0Once inside, press CTRL and F together and type the virus's Name.\u00a0 Search for the ransomware\u00a0\u00a0in your registries and delete\u00a0the entries. Be extremely careful - \u00a0you can damage your system if you delete entries not related to the ransomware. Type each of the following in the Windows Search Field: \t%AppData% \t%LocalAppData% \t%ProgramData% \t%WinDir% \t%Temp% Delete everything in Temp. The rest just check out for anything recently added.\u00a0Remember to leave us a comment if you run into any trouble! \u00a0 How to Decrypt .Kook files We have a comprehensive (and daily updated) guide on how to decrypt your files. Check it out here. If the guide doesn't help, download the\u00a0anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!