Kaspersky researchers recently discovered a new variant of the GPCode ransomware.

"Upon execution, it encrypts popular file extensions and demands a ransom payment for the decryption program," writes ZDNet's Dancho Danchev. "'The encrypted files cannot be recovered because of the strong cryptography employed,' according to Kaspersky."

"Whatever you do, do not pay the cybercriminals and look for fresh backups of your affected files," Danchev writes.

Go to "New GPCode ransomware encrypts files, demands $125 for decryption" to read the details.

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