In March 2013, a distributed denial of service (DDoS) attack of unprecedented ferocity was launched against the servers of Spamhaus, an international non-profit dedicated to battling spam. The March Spamhaus attack peaked at 300 gigabits per second, Spamhaus CEO Steve Linford told the BBC at the time – the largest ever recorded, with enough force […]
Continue ReadingA new Distributed Denial of Service (DDoS) crimeware bot known as “Zemra” and detected by Symantec as Backdoor.Zemra. Lately, this threat has been observed performing denial-of-service attacks against organizations with the purpose of extortion. Zemra first appeared on underground forums in May 2012 at a cost of €100. This crimeware pack is similar to other […]
Continue ReadingOSX/Tsunami.A, an IRC controlled backdoor Trojan for Mac OS X, has been discovered that enables the infected machine to become a bot for Distributed Denial of Service (DDoS) attacks. The analyzed sample contains a hardcoded list of IRC servers and channel that it attempts to connect to. This client then listens and interprets commands from […]
Continue ReadingTHC-SSL-DOS is a tool to verify the performance of SSL. Establishing a secure SSL connection requires 15x more processing power on the server than on the client. THC-SSL-DOS exploits this asymmetric property by overloading the server and knocking it off the Internet. This problem affects all SSL implementations today. The vendors are aware of this […]
Continue ReadingGoogle’s servers can be used by cyber attackers to launch DDoS attacks, claims Simone “R00T_ATI” Quatrini, a penetration tester for Italian security consulting firm AIR Sicurezza. Quatrini discovered that two vulnerable pages – /_/sharebox/linkpreview/ and gadgets/proxy? – can be used to request any file type, which Google+ will download and show – even if the […]
Continue ReadingAccording to Daniel Krebs an independent security researcher, hackers have started contending among themselves openly by providing DDoS (distributed denial-of-service) services that can help in causing websites to collapse. Signalnews reported this on August 2, 2011. Apparently, several secret forums exist on which subscribers canvass their skills for carrying out devastating DDoS assaults in return […]
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