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Archive for December 10, 2008

OSX/Jahlav evading scanners detection

OSX/Jahlav new variant shows a little trick to evade AV (security scanners ) detection.

preinstall3The same trick for the next script …

preinstall_drop3So it stops here since the last decoded script remains the same except on the IP address value.

Unfortunately, this changes affects the container as well which is the DMG file. Overall,  we are not seeing significant change here although it is obvious the author wants to maximize infection.

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