Mark, a professional hacker, decided to bring down the services provided by the target organization. In the initial information-gathering stage, he detected some vulnerabilities in the network…

Mark, a professional hacker, decided to bring down the services provided by the target organization. In the initial information-gathering stage, he detected some vulnerabilities in the network infrastructure of the target organization. He exploited these vulnerabilities to create multiple malformed packets in ample magnitude and sent these unusually crafted packets to the victim's machine. Which of the following attack is being performed by Mark?