The Qlocker ransomware gang has shut down their operation after earning $350,000 in a month by exploiting vulnerabilities in QNAP NAS devices. The gang used a simple approach to encrypt over a thousand, if not thousands, of devices in just a month. Victims paid a total of 8.93258497 bitcoins in ransomware today that is worth $353,708, but before this week’s Bitcoin crash, those same bitcoins would be worth almost $450,000. It is not clear if the shutdown of the QLocker sites is related to fear of increased law enforcement activity.
Source: https://www.bleepingcomputer.com/news/security/qlocker-ransomware-shuts-down-after-extorting-hundreds-of-qnap-users/

