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How to Remove SAD Ransomware and restore encrypted files

SAD RansomwareThreat In Detail

Malware researchers have came up with the new ransomware threat named as SAD Ransomware. This crypto-virus is reported to encrypt files on the victim’s PC and appends unique victim ID as the file extension. After encrypting the, SAD ransomware leaves a random note named as _HELPME_DECRYPT_.txt and instructs user to send their personal identifier to the authors via e-mail and get rest of the instructions on how to proceed with the payment process. In any such case, paying ransom is not recommended and users are urged to try restoring the files through other means.

Technical Details

Name SAD Ransomware
Type Ransomware
Description SAD Ransomware encrypts files, videos, images and texts stored on the target PC and demand a ransom amount from users to decode the files.
Occurrence spam mail attachments., exploit kits, malicious links and java script codes..
Possible Symptoms The ransom note can be seen on desktop and other file directories and files could not be accessible.
Detection Tool Download the Detection toolTo confirm attack of SAD Ransomware virus on your computer.

Ransomware defender2 download

Distribution Method

SAD Ransomware is distributed through spam mail attachment as a malicious script containing the payloads of the malware which if executed by the user could install the threat onto the computer system. Many cyber-criminals uses spam techniques to trick users by heading the mail as any invoice or shipment or any legitimate document as attachment. Other sources might include visiting infected websites containing java script codes, exploit kits and spam bots. As you open the document or click the link, the payloads of SAD Ransomware gets downloaded on the system and installed without any user’s permission. If the user open/execute this file on their device, then the virus gets installed and your PC will become infected with SAD file-encrypting Ransomware threat.



More about SAD Ransomware

SAD Ransomware is a file-encrypting program that searches for important files on the victim’s PC and renders them non-accessible to users. And further ask users to pay the ransom to get the decryption key and unlock the files.


The ransomware changes the windows Registry entries to launch each time the window’s starts and takes up huge system resources to encrypt the files.

→ HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run

SAD RANSOMWARE may also create registry entries in the following sub-keys as:

→ HKEY_CURRENT_USER\Control Panel\Desktop\
HKEY_USERS\.DEFAULT\Control Panel\Desktop\

SAD Ransomware uses AES encryption algorithm to encrypt data and appends random extensions to it. The crypto-malware ensures that the user could be able to recover the files from shadow volume copies, so it deletes the files by executing the command:

→ process call create “cmd.exe /c
vssadmin.exe delete shadows /all /quiet
bcdedit.exe /set {default} recoveryenabled no
bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures

The files contains the ransom note and instructions for users on how to contact the authors of the ransomware and get their files back

The ransom Note says:

!! IMPORTANT INFORMATION !!! SAD RANSOMWARE YOUR FILES HAVE BEEN ENCRYPTED More information about Bitcoins: More details can be found in _HELPME_DECRYPT_.txt file which you can find on your desktop. Your Personal ID:
Personal identifier: hpRXignKoOzlJnlsJblSOo3nQxUIs4kDX8
Contact email address: [email protected]

The ransom note by SAD virus states that your documents has been encrypted and you need to pay a ransom in Bitcoins to get back your files. The ransom demands varies for the user and the victims should contact with the provided email address as soon as possible.

List of file extension encrypted


If you are among the one being a victim of “SAD Ransomware”, then we would strongly suggest you not to pay any ransom to illegitimate persons behind it. Because even after paying they are not going to give your files back. So it is urged that you must opt for removal solutions for SAD Ransomware and try to recover files by automatic data recovery tool or any backup copy if you have.


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