From what I understood, audio cannot serve as a first infection vector, but it could serve as a reinfection vector even when the BIOS was flashed, as the malwar

From what I understood, audio cannot serve as a first infection vector, but it could serve as a reinfection vector even when the BIOS was flashed, as the malware apparently also infects the RealTek audio chip software (according to what he reports on G+). That would explain this scenario: the malware has been erased from the disk and the bios, but still lives in the audio chip, download a new payload through the high frequency connection, and boum, the computer is infected again. See https://plus.google.com/u/0/103470457057356043365/posts/3reWRqDMbn4 https://plus.google.com/u/0/103470457057356043365/posts/3reW...