Defiling Mac OS X - Ruxcon - Reverse Engineering Mac OS X - PUT ...

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Hiding processes ‣ DKOM again ‣ ‣ ‣ man queue(3) ‣ Walk the list ‣ ‣ TECHNIQUES HIDING PROCESSES Find _allproc with our symbol resolution skillz LIST_*() from Find the matching process Remove it from the list ‣ HARD! Defiling Mac OS X - Ruxcon November, 2011
TECHNIQUES HIDING PROCESSES Might look something like this: for (p = my_allproc->lh_first; p != 0; p = p->p_list.le_next) { if (p->p_pid == pid) { /* Store the proc ref */ gHiddenProcs[gHiddenProcCount++] = p; /* Remove it from the allproc list */ my_proc_list_lock(); LIST_REMOVE(p, p_list); my_proc_list_unlock(); } } break; Defiling Mac OS X - Ruxcon November, 2011
Page 1 and 2: DEFILING MAC OS X: KERNEL ROOTKITS
Page 3 and 4: STUFF Things I will talk about ‣
Page 5 and 6: Defiling Mac OS X - Ruxcon November
Page 7 and 8: GETTING CODE INTO THE KERNEL Defili
Page 9 and 10: TECHNIQUES GETTING CODE INTO THE KE
Page 11 and 12: TECHNIQUES GETTING CODE INTO THE KE
Page 13 and 14: TECHNIQUES DODGY KERNEL SYMBOL RESO
Page 15 and 16: TECHNIQUES DODGY KERNEL SYMBOL RESO
Page 17 and 18: TECHNIQUES SYSCALL HOOKS Old faithf
Page 19 and 20: TECHNIQUES SYSCALL HOOKS static str
Page 21 and 22: TECHNIQUES TRUSTEDBSD HOOKS Trusted
Page 23 and 24: TECHNIQUES TRUSTEDBSD HOOKS kern_re
Page 25 and 26: TECHNIQUES NETWORKING HOOKS Registe
Page 27 and 28: ROOTKITTERY Defiling Mac OS X - Rux
Page 29: TECHNIQUES PROCESS PRIVESC void pro
Page 33 and 34: TECHNIQUES HIDING FILES Hiding file
Page 35 and 36: ONE MORE THING... *cue turtleneck*
Page 37 and 38: EFI THE EXPLOSIVE FARMVILLE INVARIA
Page 39 and 40: EFI THE EXPANSIVE FURNITURE INTERFE
Page 41 and 42: REFERENCES Mac OS X Kernel Programm

Defiling Mac OS X - Ruxcon - Reverse Engineering Mac OS X - PUT ...

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