As Apple works to resolve current issues with Flashbook, malware authors continue to innovate attacks.

New ‘Flashback.S’ Variant Spotted in the Wild
http://securitywatch.pcmag.com/none/296979-new-flashback-variant-spotted-in-the-wild

QUOTE Intego reported on Monday afternoon that Flashback has already evolved into a new variant, exploiting the same Java vulnerability that earlier this month had infected more than half a million Macs.  This time, however the user does not even need to enter a password to complete the install.  “It’s an entirely silent install now,” Intego researcher Lysa Myers told Security Watch. “We’ve seen silent installs on OS X before, but this is the first time we’ve seen something to this extent.”   Flashback.S drops two files in the user’s home folder, then deletes cached Java files to avoid detection