Symantec finds a component that erases Linux machines in a piece of Windows malware used in the attacks. South Korea is investigating the Wednesday attacks that disrupted at least three television stations and four banks. The malware, which it called Jokra, is unusual and works on multiple operating systems. The attacks originated from the website of the Korean Software Property Right Council, Avast says. The actual attack code exploits a vulnerability in Internet Explorer dating from July 2012, which has been patched by Microsoft.”]

