Short bio

Ransom.BSM is a type of ransomware that renames all files in available drives with the .FRS extension. Although it claims that it encrypts files, it really doesn’t; however, it removes permissions set on all files and denies anyone access to them.

Below is the English section of the message it shows affected users:

Is the content of your files not readable? It is normal,because your important files have been encrypted by the “FRS Ransomware”. It means your files are NOT DAMAGED!Your files are just encrypted. From now it is not possible to use your files until they will be decrypted. The only way to decrypt your files safely is use special decryption tool “FRS Decryptor”. Please wait for “FRS Decryptor” to start automatically. If “FRS Decryptor” does not start automatically, open “FRS Decryptor” on the desktop.

It’s possible that there are various versions of this ransomware in the wild, using different addresses to where affected users can send Bitcoins to.


Malwarebytes protects users from Ransom.BSM by using Anti-Ransomware technology.


Malwarebytes can detect and remove Ransom.BSM without further user interaction.

  1. Please download Malwarebytes to your desktop.
  2. Double-click mb3-setup-consumer-{version}.exe and follow the prompts to install the program.
  3. Then click Finish.
  4. Once the program has fully updated, select Scan Now on the Dashboard. Or select the Threat Scan from the Scan menu.
  5. If another update of the definitions is available, it will be implemented before the rest of the scanning procedure.
  6. When the scan is complete, make sure that all Threats are selected, and click Remove Selected.
  7. Restart your computer when prompted to do so.

Take note, however, that removing this ransomware does not decrypt your files.

Affected users can use the activation code or key below to “decrypt” your files:



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