Protected Ransomware actively spreading in the wild.

February 21, 2019

The SonicWall Capture Labs Threat Research Team observed reports of a new variant family of Protected Ransomware [Protected.RSM] actively spreading in the wild.

This time hackers claim that they tried to save your personal files from other hacker by encrypting them!

The Protected Ransomware encrypts the victims files with a strong encryption algorithm until the victim pays a fee to get them back.

Contents of the Protected ransomware

Infection Cycle:

The Ransomware adds the following files to the system:

  • Malware.exe
    • %App.path%\ RESTORE_FILES.txt
    • %App.path%\ [File Name].protected
    • %Userprofile\Desktop %\ RESTORE_FILES.txt
      • Instruction for recovery

Once the computer is compromised, the Ransomware runs the following commands:

The Ransomware encrypts all the files and appends the [.Protected]  extension onto each encrypted file’s filename.

After encrypting all personal documents the Ransomware shows the following txt file containing a message reporting that the computer has been encrypted and to contact its developer for unlock instructions.

SonicWall Capture Labs provides protection against this threat via the following signature:

  • GAV: Protected.RSM (Trojan)