dtrace-infiltrate

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Hooking Finder int getdirentriesattr( int fd, struct attrlist * attrList, void * attrBuf, size_t attrBufSize, unsigned int * count, unsigned int * basep, unsigned int * newState, unsigned int options ); syscall::getdirentriesattr:entry /fds[arg0].fi_pathname+2 == "/private/tmp"/ { self->gda_thiscall = arg2; self->gda_bufsize = arg3; self->gda_count = arg4; printf("[+] Someone is calling getdirentriesattr() on /tmp, they might see our hidden dir.\n"); }
Hooking Finder - Method Read in whole directory struct buffer. Copy back the buffer, skipping the first entry. Subtract 1 from the count, and write that too. ??? Profit
Page 1 and 2: Destructive D-Trace With Great Powe
Page 3 and 4: What is Dtrace? Dynamic Instrument
Page 5 and 6: What is Dtrace? Dtrace executable
Page 7 and 8: Data Types C style types. (int/lon
Page 9 and 10: copyin()/copyinstr() Dtrace code i
Page 11 and 12: Chill void chill(int nanoseconds)
Page 13 and 14: Pros Anti-forensics properties: Pa
Page 15 and 16: copyout/copyoutstr Write a block o
Page 17 and 18: Limitations on Constructs Cannot m
Page 19 and 20: Example: spassrm.d pid$target::strn
Page 21 and 22: Local Backdoor
Page 23 and 24: `ls` Uses getdirentries64() syscal
Page 25 and 26: Dirent Modification - DIRENT 1 Befo
Page 27 and 28: Hooking `ls` - Return syscall::getd
Page 29: Hooking Finder Apple implemented a
Page 33 and 34: Finder Demo
Page 35 and 36: Hiding from `lsof` for (ef = 0; !ef
Page 37 and 38: Hiding from `lsof` - 2 nd Entrypoin
Page 39 and 40: Hiding from `lsof` syscall::proc_in
Page 41 and 42: Hiding Processes Processes need hi
Page 43 and 44: Hiding from `ps` ps on OSX uses sy
Page 45 and 46: Hiding from `ps` - tasks.c int get_
Page 47 and 48: Hiding from `ps`
Page 49 and 50: libtop libtop_p_task_update(task_t
Page 51 and 52: libtop mach_trap::pid_for_task:retu
Page 53 and 54: activitymonitord Turns out libtop
Page 55 and 56: OpenSSHd Backdoor Almost no system
Page 57 and 58: dshdbd.d - (Client) Modify the nex
Page 59 and 60: OpenSSHd Backdoor - read passwd hoo
Page 61 and 62: OpenSSHd Backdoor Next the fstat64
Page 63 and 64: SSHd Backdoor - Output -[dcbz@squee
Page 65 and 66: utmpx Disable Next, a write() hook
Page 67 and 68: Apache Javascript Injector Hook op
Page 69 and 70: Writev() syscall writev(int fildes,
Page 71 and 72: Apache Javascript Injector /* copy
Page 73 and 74: Designing OSX Rootkits nemo/fracta

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