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Checkmate ransomware hits QNAP NAS devices

QNAP Systems is warning about Checkmate, a new piece of ransomware targeting users of its network-attached storage (NAS) appliances.

“Preliminary investigation indicates that Checkmate attacks via SMB services exposed to the internet, and employs a dictionary attack to break accounts with weak passwords,” the company says.

“Once the attacker successfully logs in to a device, they encrypt data in shared folders and leave a ransom note with the file name ‘!CHECKMATE_DECRYPTION_README’ in each folder.”

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