In this highly-digitalized era, many SMEs and personal computer users are leveraging on the easy-to-manage and low-cost nature of Network-attached Storage (NAS) devices to help them store information and multimedia files. This makes the devices an obvious target for cyber criminals. A recent HKCERT review of the malware situation in Hong Kong has estimated that around 2,000 QNAP NAS devices locally had been infected with a malware called QSnatch to become part of a botnet. To address the issue, Internet service providers have been contacted to help inform the victims to clean up their infected devices.  

For details, please refer to the below link:
https://www.hkcert.org/tc/blog/qsnatch-malware-prevention-and-cleanup