Researchers uncovered a massive attack on Windows running Microsoft SQL servers by a group of hackers using the new wave of long-running attack campaign called Vollgar. The attack originated in more than 120 IP addresses and the most of the hits comes from China. Researchers gathered multiple pieces of evidence that show the main CNC server originated from China and 10 different backdoors are used to access the system. Victims belong to various sectors such as healthcare, aviation, IT & telecommunications and higher education from India, U.S, Turkey, South Korea.”]
Source: https://gbhackers.com/windows-running-mssql-servers-under-attack/