Researchers say they have discovered a new way that attackers could launch reflected denial-of-service amplification attacks over TCP by abusing middleboxes and censorship infrastructure. Attackers can magnify the amount of malicious traffic they generate and obscure the sources of the attack traffic. This type of DoS attack overwhelms the target, causing disruption or outage of systems and services. Researchers describe the first reflected amplification attack over TCP that goes beyond sending SYN packets and the first HTTP-based reflected amplifier attack.”]
Source: https://www.cuinfosecurity.com/researchers-describe-new-dos-attack-method-a-17307