Remove ios anti-debugging and ios debugging

Source: Internet
Author: User

Remove ios anti-debugging and ios debugging

Reverse debugging is often encountered in the reverse process, as shown in the following code:

0008bd8e         movs       r1, #0xa                                            ; argument #2 for method imp___symbolstub1__dlopen0008bd90         blx        imp___symbolstub1__dlopen0008bd94         movw       r1, #0xe1030008bd98         mov        r6, r00008bd9a         movt       r1, #0x10                                           ; 0x10e103 (sub_10dfd8 + 0x12b)0008bd9e         add        r1, pc                                              ; "ptrace", argument #2 for method imp___symbolstub1__dlsym0008bda0         blx        imp___symbolstub1__dlsym0008bda4         mov        r4, r00008bda6         movs       r0, #0x1f0008bda8         movs       r1, #0x00008bdaa         movs       r2, #0x00008bdac         movs       r3, #0x00008bdae         blx        r4 
View Code

Find the ptrace function address in the dynamic Connection Library and call the ptrace function. During reverse debugging, you only need to modify the first parameter and change the value.

Can refer to this article: http://www.cnblogs.com/catch/p/3476280.html

 

 

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