A denial-of-service (DoS) attack is a type of cyber attack in which a malicious actor aims to render a computer or other device unavailable to its intended users by interrupting the device’s normal functioning. DoS attacks typically function by overwhelming or flooding a targeted machine with requests until normal traffic is unable to be processed, resulting in denial-of-service to addition users. A DoS attack is characterized by using a single computer to launch the attack.
Low Orbit Ion Cannon (LOIC)
Download Link: https://sourceforge.net/projects/loic/
Low Orbit Ion Cannon is an open-source network stress testing and denial-of-service (DOS) attack application.