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.[3][4]
Characteristics
LOIC performs a DoS attack (or, when used by multiple individuals, a DDoS attack) on a target site by flooding the server with TCP, UDP, or HTTP packets with the intention of disrupting the service of a particular host. People have used LOIC to join voluntary botnets.[5]
The software inspired the creation of an independent JavaScript version called JS LOIC, as well as LOIC-derived web version called Low Orbit Web Cannon. These enable a DoS from a web browser.[6][7][8]
Countermeasures
Security experts quoted by the BBC indicated that well-written firewall rules can filter out most traffic from DDoS attacks by LOIC, thus preventing the attacks from being fully effective.[9] In at least one instance, filtering out all UDP and ICMP traffic blocked a LOIC attack.[10] Firewall rules of this sort are more likely to be effective when implemented at a point upstream of an application server's Internet uplink to avoid the uplink from exceeding its capacity.[10]
LOIC attacks are easily identified in system logs, and the attack can be tracked down to the IP addresses used.[11]
The LOIC application is named after the ion cannon, a fictional weapon from many sci-fi works, video games,[17] and in particular after its namesake from the Command & Conquer series.[18] The artwork used in the application was a concept art for Command & Conquer 3: Tiberium Wars.
^Chapple, Mike; Chapple, University of Notre Dame Mike; Seidl, David (1 August 2014). Cyberwarfare. Jones & Bartlett Publishers. ISBN9781284058499. Retrieved 9 May 2017 – via Google Books.
^Homeworld, Homeworld 2, Unreal Tournament 2004, Ogame, Ratchet & Clank: Up Your Arsenal, StarCraft
^metatags generator (2012-09-27). "Low Orbit Ion Cannon". Archived from the original on September 27, 2012. Retrieved 2013-11-22.{{cite web}}: CS1 maint: unfit URL (link)