Concealing an app from DTrace
Concealing an app from DTrace
- Subject: Concealing an app from DTrace
- From: Eric Gorr <email@hidden>
- Date: Tue, 01 May 2012 21:04:23 -0400
I found this old message:
http://lists.apple.com/archives/cocoa-dev/2010/Mar/msg01042.html
in which stated:
If you think this is going to help you avoid piracy, it's not. OS X
has a flag (PT_DENY_ATTACH) that the kernel checks for when a debugger
asks to attach to a process. If that flag is set, the kernel refuses
to allow the debugger to attach. iTunes famously does this to prevent
people from inspecting the operations of the DRM system. It's a
trivial matter to patch the kernel to not respect this flag,
I was just wondering if this is still true or true in general...that it is not possible to conceal an application from DTrace.
Thank you.
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