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broly7
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 Posted: Mon Nov 16, 2015 11:42 am Post subject: Simple function to place a Breakpoint (DELPHI) |
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Hello.
Is there a simple function to place a Breakpoint to an address.
Within a dll?
So let's say i inject a dll to a process, now what's a proper function to place a Breakpoint and edit some register?
Thanks.
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STN
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| Posted: Mon Nov 16, 2015 12:20 pm Post subject: |
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Use MinHook.
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broly7
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| Posted: Thu Nov 19, 2015 11:12 am Post subject: |
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Definetly not for Delphi...
not valid.
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hollow87
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| Posted: Thu Nov 19, 2015 1:59 pm Post subject: |
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| What about DebugBreak or DebugBreakProcess in Kernel32.dll also MinHook should work with delphi same way you can use a C dll from delphi
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atom0s
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| Posted: Thu Nov 19, 2015 3:08 pm Post subject: |
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| hollow87 wrote: | | What about DebugBreak or DebugBreakProcess in Kernel32.dll also MinHook should work with delphi same way you can use a C dll from delphi |
I've explained to him in previous topics what API is needed to accomplish this, but doesn't seem like it did any good.
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broly7
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| Posted: Thu Nov 19, 2015 3:22 pm Post subject: |
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| hollow87 wrote: | | What about DebugBreak or DebugBreakProcess in Kernel32.dll also MinHook should work with delphi same way you can use a C dll from delphi |
MinHook doesn't have the ability to place (NON MEMORY WRITE) Breakpoints as far as i know.
The best thing would be a Cheat engine lite library to use these hardware breakpoints feature 
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Dark Byte
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| Posted: Thu Nov 19, 2015 3:25 pm Post subject: |
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use SuspendThread, ResumeThread and setThreadContext to set a breakpoint in every currently running thread. (use toolhelp32 or similar to enumerate all the threads and openThread of course)
and capture the debug exception one way or another.
I find the addVectoredExceptionHandler function pretty useful for this
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broly7
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| Posted: Thu Nov 19, 2015 3:27 pm Post subject: |
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| Dark Byte wrote: | use SuspendThread, ResumeThread and setThreadContext to set a breakpoint in every currently running thread. (use toolhelp32 or similar to enumerate all the threads and openThread of course)
and capture the debug exception one way or another.
I find the addVectoredExceptionHandler function pretty useful for this |
Thank you.
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STN
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| Posted: Fri Nov 20, 2015 2:03 am Post subject: |
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| broly7 wrote: |
MinHook doesn't have the ability to place (NON MEMORY WRITE) Breakpoints as far as i know.
The best thing would be a Cheat engine lite library to use these hardware breakpoints feature |
Not for breakpoint but changing register's value.
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