.sad Files (Sad Computer Ransomware) – WHAT IS IT + Remove It

.sad Files (Sad Computer Ransomware) – WHAT IS IT + Remove It

What are .sad files? What is .sad ransomware virus? How to remove Sad Ransomware and try to restore .sad encrypted files?

A ransomware virus, called Sad Ransomware was recently detected by security researchers. The virus uses the .sad file extension which is added to the files, encrypted by the virus. The virus drops a ransom note, the aims to get victims to pay ransom to get their files back and it extorts them into paying BitCoin in 5 minutes or else threatens to delete their files forever. If your computer has been infected by Sad Computer ransomware, we advise you to read this article thoroughly.

Threat Summary

NameSad Computer Ransomware
TypeRansomware, Cryptovirus
Short DescriptionEncrypts your files and holds them hostage until you pay ransom to be able to use them again.
SymptomsFiles are encrypted and have the .sad extension added. They become no longer usable and a ransom note “Sad Computer” appears.
Distribution MethodSpam Emails, Email Attachments, Executable files
Detection Tool See If Your System Has Been Affected by Sad Computer Ransomware


Malware Removal Tool

User ExperienceJoin Our Forum to Discuss Sad Computer Ransomware.
Data Recovery ToolWindows Data Recovery by Stellar Phoenix 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.

.sad Ransomware – How Did I Get It and What Does It Do?

The Sad Computer ransomware virus is often spread via two main ways:

  • Via malicious files or web links sent to victims by e-mail.
  • Via malicious files or links that are posted on suspicious or compromised websites.

Whatever the case may be, once you get tricked into downloading and running the virus files of Sad Computer ransomware, it may immediately begin encrypting your files. The virus may target the following types of files by scanning your PC for them:

  • Documents.
  • Videos.
  • Images.
  • Audio files.
  • Archives.
  • Database files.
  • Other important data.

Once Sad Computer ransomware has encrypted your files, it ads the .sad extension to them and the files start to look like the following:

The Sad Computer ransomware then drops the following ransom note so that you can see how the extortion works:

Text from the image:

Your Files are Encrypted
What Happened to my computer?
Your Files Have Been Encrypted.

Q: How Do I restore the files?
A: You needto use bitcoin to restore the files.

Q: Can I use other methods?
A: Yes. You can use PayPal.

Q: How can I trust?
A: We don’t cheat users. We restore the files.

In addition to this, the Sad Computer ransomware may also refrain from encrypting all files in the system folders of Windows and perform other malicious activities, like the ones below:

  • Install other viruses.
  • Check if it’s running on a virtual drive or if it has infected your PC before.
  • Delete your backups.
  • Stop the Windows Recovery Services.
  • Create mutexes.
  • Read and write files.
  • Create files.

Remove Sad Computer Ransomware and Try to Restore .sad Files

Before starting to remove this virus, be advised that you should copy your encrypted files somewhere else or make a system image of your Windows OS to backup everything.

To remove Sad Computer ransomware, you can follow the removal steps below. They have been made with the idea to help you either manually delete the virus or use an advanced anti-malware tool to remove it automatically. If you want to remove Sad Ransomware quickly and effectively, the best method according to security professionals is to download and scan your PC with an advanced anti-malware software. Such tool aims to ensure that all of the virus files of Sad Ransomware will be gone for good and your machine remains protected against such viruses in the future as well.

To try and get your data back, you should see the alternative file recovery methods in step “Try to Restore” below. They come with no 100% guarantee to recover your files, but they are a good temporary solution for until a decryptor comes out. Until then, keep following this post as we will post an update with a decryptor when it becomes available.


Ventsislav Krastev

Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.

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