New DoS attack uses Web servers as zombies

New DoS attack uses Web servers as zombies: "Researchers have uncovered a botnet that uses compromised Web servers instead of the usual personal computers to launch denial-of-service (DoS) attacks. Security firm Imperva said on Wednesday it uncovered a botnet of about 300 Web servers after one of its 'honeypot' servers was used in an attack and based on a search of attack code via Google. Web servers were commonly used in such attacks a decade ago but had been replaced by the more ubiquitous Windows-based PCs, said Amachai Shulman, chief"