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 Forums >>  IDA Pro  >>  ida plugin writing for dynamic analisis

Topic created on: June 2, 2013 09:34 CDT by aj3423 .

Hi,
I have a simple test.exe, and three questions:

1. It takes less than 1 second for IDA to analyze test.exe, by analyze I mean all functions listed, modules found. But why it takes about 10 seconds for function analyze_area() in debug mode? Here's the code executed in debug mode:
    analyze_area(0x401000, 0x40c000); // 401000==code_seg_start  40c000==code_seg_end

2. When dynamically loading .dll, any way to get the code segment of the dll? Include the segment start and segment size.
  If I hook HT_DBG like this:

int idaapi dbg_callback(void*, int event_id, va_list va) {
  if(event_id == dbg_library_load) {
    const debug_event_t* evt = va_arg(va, const debug_event_t*);
    module_info_t mod = evt->modinfo;
    // how to get the code_segment_start and code_segment_size ?
....


Thanks.

  ohyeah521   December 26, 2013 21:03.20 CST
use these api:
idaapi.patch_byte
idaapi.patch_long
idaapi.patch_many_bytes
idaapi.patch_word

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