.mailto[kokoklock@cock.li] Files Virus - How to Remove (Update Feb 2020)

.mailto[kokoklock@cock.li] Files Virus – How to Remove (Update Feb 2020)

What is .mailto[kokoklock@cock.li] files virus? .mailto[kokoklock@cock.li] virus is also known as Kokoklock ransomware. It encrypts files and demands a ransom for their alleged restoration.


Kokoklock or otherwise known as .mailto[kokoklock@cock.li] files virus is ransomware. It encrypts files by appending the .mailto[kokoklock@cock.li] extension to them, making them inaccessible. All encrypted files will receive the new extension as a secondary one. Another extension will be added before it that is generated on a random principle. The Kokoklock ransomware drops a ransom note, which gives instructions to victims on how they can allegedly restore their data.

Threat Summary

Name.mailto[kokoklock@cock.li] File Virus
TypeRansomware, Cryptovirus
Short DescriptionThe ransomware encrypts files on your computer system and demands a ransom to be paid to allegedly recover them.
SymptomsThe Kokoklock ransomware will encrypt your files by appending the .mailto[kokoklock@cock.li] extension to them, along with a unique identification number placing the new .mailto[kokoklock@cock.li] extension as a secondary.
Distribution MethodSpam Emails, Email Attachments
Detection Tool See If Your System Has Been Affected by .mailto[kokoklock@cock.li] File Virus


Malware Removal Tool

User ExperienceJoin Our Forum to Discuss .mailto[kokoklock@cock.li] File Virus.
Data Recovery ToolWindows Data Recovery by Stellar Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.

.mailto[kokoklock@cock.li] Files Virus – What Did It Do to My Computer?

.mailto Ransomware – Update February 2020

The newer variant of the mailto Ransomware has a few things changed. Except the ransom note, the following e-mail addresses for contacting the cybercriminals are used:

  • kkeessnnkkaa@cock.li
  • hhaaxxhhaaxx@tuta.io

New extensions seem to be random as well as compared to the previous versions of the virus and include mainly numbers, which stems from the modus operandi of the criminal actors. The ransomware note states the following:

Your files are encrypted.
All encrypted files for this computer has extension: .1401

If for some reason you read this text before the encryption ended,
this can be understood by the fact that the computer slows down,
and your heart rate has increased due to the ability to turn it off,
then we recommend that you move away from the computer and accept that you have been compromised,
rebooting/shutdown will cause you to lose files without the possibility of recovery and even god will not be able to help you,
it could be files on the network belonging to other users, sure you want to take that responsibility?

Our encryption algorithms are very strong and your files are very well protected, you can’t hope to recover them without our help.
The only way to get your files back is to cooperate with us and get the decrypter program.
Do not try to recover your files without a decrypt program, you may damage them and then they will be impossible to recover.
We advise you to contact us as soon as possible, otherwise there is a possibility that your files will never be returned.
For us this is just business and to prove to you our seriousness, we will decrypt you some files for free,
but we will not wait for your letter for a long time, mail can be abused, we are moving on, hurry up with the decision.
Сontact us:
Don’t forget to include your code in the email:

The note is named according to the random file extension it puts inside a victim’s computer on the locked files. So the scheme for creating the name would be: [random extension]-Readme.txt . Other than the changes described above, there is almost nothing else different than the first variant of the ransomware.

Mailto Ransomware – More Information

.mailto[kokoklock@cock.li] Files Virus might spread its infection via a payload dropper, which initiates the malicious script for this ransomware. The virus might also distribute its payload file on social media and file-sharing services. Freeware which is found on the Web can be presented as helpful also be hiding the malicious script for the cryptovirus. Read the tips for ransomware prevention from our forum.

Kokoklock or better known as the .mailto[kokoklock@cock.li] Files Virus is ransomware that encrypts your files and shows ransomware instructions inside a ransom note called ID-Readme.txt:


Beside the instructions you can see in the above image, there is a note that states the following:

What happen ?

Your files are encrypted, and currently unavailable.
You can check it: all files on your computer has expansion 1be018.
By the way, everything is possible to recover, but you need to follow our instructions.
Otherwise, you cant return your data.

What guarantees?

Its just a business. We absolutely do not care about you and your deals, except getting
benefits. If we do not do our work and liabilities – nobody will not cooperate with us.
Its not in our interests.
To check the ability of returning files, you should write to us by email.
There you can decrypt one file for free. That is our guarantee.

How to contact with us ?

Email us:

1. kokoklock@cock.li
2. pabpabtab@tuta.io

Be sure to include your personal code in the letter:
{key_1be018:EQAAADFCRTAx0C1SZWF kbWUudHh@IQAAAC5tYW1sdG9ba29rb2

You should NOT under any circumstances pay any ransom sum.

The extortionists want you to pay a ransom for the alleged restoration of your files, same as with a lot of ransomware viruses. .mailto[kokoklock@cock.li] Files Virus ransomware could make entries in the Windows Registry to achieve persistence, and could launch or repress processes in a Windows system. All encrypted will receive the .mailto[kokoklock@cock.li] extension alongside a random generated one. That extension will be placed as a secondary one to each file and look something like .mailto[kokoklock@cock.li].ID where the ID consists of 6 random symbols. Audio, video, image files as well as documents, backups and banking data can be encrypted by the ransomware.

The .mailto[kokoklock@cock.li] Files Virus could be set to erase all the Shadow Volume Copies from the Windows operating system with the help of the following command:

→vssadmin.exe delete shadows /all /Quiet

If your computer device was infected with this ransomware and your files are locked, read on through to find out how you could potentially restore your files back to normal.

Remove .mailto[kokoklock@cock.li] Files Virus

If your computer got infected with the .mailto[kokoklock@cock.li] Files Virus, you should have a bit of experience in removing malware. You should get rid of this ransomware as quickly as possible before it can have the chance to spread further and infect other computers. You should remove the ransomware and follow the step-by-step instructions guide provided below.

Tsetso Mihailov

Tsetso Mihailov

Tsetso Mihailov is a tech-geek and loves everything that is tech-related, while observing the latest news surrounding technologies. He has worked in IT before, as a system administrator and a computer repair technician. Dealing with malware since his teens, he is determined to spread word about the latest threats revolving around computer security.

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