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Slowloris is a type of denial of service attack tool which allows a single machine to take down another machine's web server with minimal bandwidth and side effects on unrelated services and ports. Slowloris tries to keep many connections to the target web server open and hold them open as long as possible.
R.U.D.Y., short for R U Dead Yet, is an acronym used to describe a Denial of Service (DoS) tool used by hackers to perform slow-rate a.k.a. “Low and slow” attacks by directing long form fields to the targeted server. [1] It is known to have an interactive console, thus making it a user-friendly tool. [2]
Low Orbit Ion Cannon (LOIC) is an open-source network stress testing and denial-of-service attack application written in C#.LOIC was initially developed by Praetox Technologies, however it was later released into the public domain [2] and is currently available on several open-source platforms.
High Orbit Ion Cannon (HOIC) is an open-source network stress testing and denial-of-service attack application designed to attack as many as 256 URLs at the same time. It was designed to replace the Low Orbit Ion Cannon which was developed by Praetox Technologies and later released into the public domain.
The section "Mitigating the Slowloris attack" claims that some HTTP server software is unaffected yet doesn't list any. But as I understand the HTTP spec (RFC 2616), any server that responds in an HTTP-conforming way to a connection initiated by a slow modem (e.g. V.32bis at 14.4 kbps) is affected unless it drops the connection after the client sends too many request headers.
Slow lorises are a group of several species of nocturnal strepsirrhine primates that make up the genus Nycticebus.Found in Southeast Asia and nearby areas, they range from Bangladesh and Northeast India in the west to the Sulu Archipelago in the Philippines in the east, and from Yunnan province in China in the north to the island of Java in the south.
According to Cambiaso et al, [1] slow DoS attacks exploit one or more parameters characteristics of TCP-based connections.Such parameters are exploited to keep connections alive longer than expected by preserving the attack bandwidth, hence seizing the server resources for long times, by at the same time reducing attack resources.
SlowDroid is the first [1] denial of service attack which allows a single mobile device to take down a network server requiring minimal bandwidth. [2] [3] The attack has been created for research purposes by Enrico Cambiaso and Maurizio Aiello for the IEIIT Institute [4] of the National Research Council of Italy and released as an Android application.