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Mac malware evolves – time for Apple owners to wake up

19

Oct

2011

Mac users have once again been reminded not to be complacent about the malware threat, with the discovery that cybercriminals have enhanced an existing Trojan horse to disable the rudimentary anti-virus protection Apple has built into Mac OS X. Despite the growth of Mac malware in the last 12 months, many users are still not […]

Category General Written by Naked Security - Sophos 0 Comments

Mac Trojan Disables XProtect Updates

19

Oct

2011

There’s something new brewing in Mac malware development (again). Recent analysis has revealed to us that Trojan-Downloader:OSX/Flashback.C disables the automatic updater component of XProtect, Apple’s built-in OS X anti-malware application. First, Flashback.C decrypts the paths of XProtectUpdater files that are hardcoded in its body: Flashback.C decrypts the path of the plist file of XProtectUpdater Flashback.C […]

Category General Written by F-Secure Antivirus Research Weblog 0 Comments

Mac Trojan Flashback.B Checks for VM

12

Oct

2011

One of our analysts has discovered something interesting while debugging the latest version of Flashback, a Mac trojan that attempts to trick people into believing it’s an Adobe Flash Player update. While comparing the differences between Flashback.A and Flashback.B, he saw this routine: Flashback.B performs a “vmcheck”. If virtualization is detected, the trojan aborts itself. […]

Category General Written by F-Secure Antivirus Research Weblog 0 Comments

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Mac malware evolves – time for Apple owners to wake up

Mac Trojan Disables XProtect Updates

Mac Trojan Flashback.B Checks for VM

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