Help/Support Binary reverted to its original codes after modifying

jayvee · July 2, 2015

Yesterday i was able to modify and disable the antidebugger of an app and able to attach gdb. But earlier when i was trying to attach gdb on that app a segfault 11 appeared. I opened the binary using hex editor and i just found out that the codes i modified yesterday reverted to its original codes. How did this happen? I never reinstalled/upgraded the app. Does the game dev has the ability to modify the binary even without updating thru appstore?

castix · July 2, 2015

No hahaha

Rook · July 2, 2015

You can also write a tweak which disables ptrace on the binary. No need to copy over the modified binary and stuff.

ipaarchive.com · July 2, 2015

On 7/2/2015 at 11:51 AM, z0ne said:
No hahaha

^

jayvee · July 2, 2015

On 7/2/2015 at 11:51 AM, z0ne said:
No hahaha

i never reinstalled the app. I was able to attach gdb yesterday but now segfault 11 keeps on appearing

how the heck the modified codes reverted to its orig form? I never touched since modifying

On 7/2/2015 at 11:51 AM, DiDA said:

You can also write a tweak which disables ptrace on the binary. No need to copy over the modified binary and stuff.

the binary doesnt have syscal. It has anitdebug but not syscal