Over the past six months, a large number of DDoS-for-hire platforms — also known as DDoS booters or DDoS stressors — have appeared in China, all sporting the same interface, and seeming to be based on the same source code. […]

from https://www.bleepingcomputer.com/news/security/tsunami-of-ddos-for-hire-platforms-coming-from-the-east/