Know How To Recover files from COSAKOS ransomware

COSAKOS ransomware is a file encrypting virus that belongs to DJvu Ransomware family. The main aim of this virus is to lockdown the target System and encrypts all existing files. It is discovered by the team of remote hacker with the sole motive to extort huge ransom money by the phishing innocent users. It is able to lock down all kind of Windows Based Operating System like as Windows XP, Windows7, Windows8, Windows8.1 and the most latest version Windows 10. It usually get enters into the system by the opening spam mail attachments files like as word file, documents, text files, audio files, video files, torrent files etc. It also comes with the bundling of freeware program, updating System software, clicking on malicious links and other tricky ways.

Once a System is infected with COSAKOS ransomware then you will not be able to open all the existing files. It uses strong cryptographic algorithm AES and RSA to encrypt all kind of System files like as word, documents, pictures, audios, videos, games, apps and so on. It also add “COSAKOS ” extension at the end of every files to makes them totally useless. Therefore users are unable to open even single file. While they will try to open any file then the ransom note appears on the System screen that demands ransom money.

How COSAKOS ransomware Demands Ransom Money:

Once encrypted all kind of System file, COSAKOS ransomware demands ransom money by the sending scaring note on the System screen. This ransom note states that you’re all data and files are encrypted by the strong encryption key. In order to access all encrypted files you must need to contact cyber-criminal via the email –id which forces users to buy decryption key which cost is about 500 us dollar and you have to pay this amount in the form of bitcoins within 48 hrs. It also shows warning message if you will delay to pay ransom money than your all data and file will delete permanently from your System.

Should Victim Pay Ransom Money:

Victims are highly suggested should not pay ransom money to the hacker because once money will pay then the cyber-criminal will attempt to ignore the victim. In this way victim can lost your files and money as well. It is capable to also gather private and sensitive information including bank and credit card details for evil use.

How To Recover files and Remove COSAKOS ransomware:

We are strongly recommendation not need to worry about and never try sends money to the hacker. Paying money will give no positive results. The only one way to recover files is to remove COSAKOS ransomware firstly and completely from System. After this process you can easily restore all data and file by the using legitimate recovery Software.

How To Protect your System from COSAKOS ransomware:

In order to protect the System users must be avoiding the attach any mails which received through unknown address. Users must be pay attentive while opening any file which sends through irrelevant address. Don’t try to downloading and installing freeware program from third party webpage. Always download and install any program specially freeware from there official site. Read the installation Guide carefully till the end and don’t forget select custom or advance options. Here is given below automatic removal tool that will help to remove COSAKOS ransomware completely from your System.



Steps To Remove COSAKOS ransomware From Compromised Computer

The infections like COSAKOS ransomware or similar ones or those belong to other malware category are all designed to generate with only ill intention to make money for its developers who make use of any technique to force you down. However, most of the security experts associated with different security associations say this is not much harmful browser and can be removed from an infected computer by getting through some steps. If you follow the steps in the same order and with full attention as described in the procedures below, we hope you can also free up your PC easily. It’s recommended to take a hard copy of the guidelines on paper or get another computer to assist you following the steps without any hassles.

Step 1:Track and remove COSAKOS ransomware from computer’s processes from task manager.

Step 2:Locate and delete the definition of this program from startup files, registry files, and host files.

Step 3:Removal of COSAKOS ransomware from all reputed browsers.

Step 4:Delete COSAKOS ransomware with an automatic solution(The Safest and most recommended method)

Step 1: Track and remove COSAKOS ransomware from computer’s processes from task manager.

  • Launch the Task Manager by pressing a key combination CTRL+SHIFT+ESC simultaneously.

  • Review the suspicious processes and note down its file location on computer.end-malicious-process

  • Terminate the processes now.

  • Open the “Run” command box and enter the noted down location to open in file explorer.

  • Delete the file permanently.

Step 2: Locate and delete the definition of this program from startup files, registry files, and host files

  • Launch the file explorer or any folder from my computer.

  • Click on “View” option in the above Menu (Older Windows version’s user may go to control panel to open “Folder options”)

  • Choose “Folder and Search Options”

  • Click over “View” tab.

  • Scroll down to find “Show hidden files and folders” option, and check it in the check box.

  • Find “Hide protected operating system files” and uncheck it. (This will allow you to see super-hidden files in any folder to identify the suspicious ones.)

  • Click “Apply” then “Ok”

Cleaning COSAKOS ransomware definitions from Windows registry

  • To open Windows registry editor, click Win+R combination.

  • Type “regedit” ro simply copy and paste in the command line

  • Press Ok.

  • Navigate to below mentioned registry files depending on your OS versions (32 bit or 64 bit) and delete the files.

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run] or

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] or


  • Now Launch the Windows explorer and navigate to %appdata% to find and delete suspicios executable files from there, and close the window.

Fixing Hosts file to block the unwanted redirections on all active browsers

  • Open windows explorer and navigate to Windows directory.

  • Go to System32/drivers/etc/host

  • open the host file and notice it. If the system is hijacked by the infection you would see several IP definitions at the bottom.

  • Select those IP addresses and delete them. (Don’t delete the local host entry)

  • Save and close the file, and exit the explorer window.

Step 3: Removal of COSAKOS ransomware from all reputed browsers (Steps included for Chrome, Firefox & Internet Explorer)

Google Chrome

  • Launch Chrome browser.

  • Click over the main menu icon and select Tools or More Tools, then Extensions.

  • Scroll down to notice the list of installed extensions to find suspicious one and click the bin option beside it.

  • Click remove button to confirm the deletion.

  • Finally, Reset the Chrome settings to default leaving nothing behind.

Mozilla Firefox

  • Launch the Firefox and press CTRL+SHIFT+A to open extension Window.

  • Look for the COSAKOS ransomware extension and Disable it.

  • Now go to Help section.

  • Click over Troubleshooting information then hit the Reset button.

  • Confirm the act to reset the browser.

Internet Explorer

  • Simply, open the browser and click thee Gear Icon on the upper right corner.

  • Navigate to Internet options and click it.

  • Now, navigate to Toolbars and Extensions, to see the list of installed addons to find unwanted one.

  • Disable or delete the selected extensions permanently.

  • In order to reset the Ie, click over Advanced tab, and click Reset.

  • Press OK button to confirm.

Cleaning the browser’s shortcuts on the computer is also recommended in most of the cases and should be accomplished for all installed browsers, for which the steps are:

  • Select the browser short-cut, and right click on it.

  • Navigate the properties and click it.

  • In the opened window, find the target option, and remove the argument for COSAKOS ransomware .

  • Apply the changes.

Step 4: Remove COSAKOS ransomware with an automatic solution

Although the removal method through manual instructions are effective and proven to provide the best results, still some of the victimized users may fail to get the results as per their desire. This can happen due to lack of technical consent to access most of the administrative utilities as used in above guidelines. If you also got stuck through the instructions or seeking the safest method which needs not any high end manual steps, then opting an automatic solution could be the best solution. You just need to do a few instructions taken in practice to install and scan the system deeply that will fix all issues and remove COSAKOS ransomware completely. The required steps to do so is all here mentioned.


Easily remove all online trending threats from your PC safely at just single click.

Step 1:Download and install COSAKOS ransomware removal tool and install it on your computer (Note:this is a free scanner that will detect the present malwares on your system only. In order to fix the threats completely, you would have to buy its full version to remove the threats.)

Step 1

Step 2: After the installation is finished, run the scanner and you will see the two options as depicted in the image below. Click on “Scan Computer Now” button.

Step 2

Step 3: In this step, you would see the scanning process bar with detection of found threats and its short description along-with its categorized thumbnail.

Step 3

Step 4: Lastly, the scanner finishes scanning the computer to show full list of detected threats on computer. Just click on “Fix Threats” button to complete the removal that hardly takes a few moments depending upon the nature and severity level of the malware items.

Step 4