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 Forums >>  Target Specific - General  >>  First Reverse, problem with intermodular calls.

Topic created on: December 22, 2010 04:28 CST by kaharas .

Hi guys, this is my firt try so probably I'm just posing a dumb question, but well, everybody had to learn somehow :)
I'm using Immunity Dbg. I load my .exe, press Shift+F9 to skip the exception, and the program starts, showing two field, one with a machine code, and the other one that needs to be filled, and a button.
Now, if i click on "Search for all intermodular call", i get this : http://pastebin.com/3VegB4Au . If later i press CTRL+A (analyze code), and search again for intermodular calls, i get this instead: http://pastebin.com/PgrkNy0q .
The questions are 3:
1) where should i put the breakpoint?
2) why the intermodular calls are different?
3) is it possible that the program doesn't make any call to user32.dll or kernell.dll?

PS: sorry again for the dumb questions :)

  jduck     December 22, 2010 13:07.14 CST
Answers:

1) Huh? Not enough information for that question.
2) Because you had the CPU window on code in different modules?
3) Yes, but it probably won't work well on all versions of Windows.

  RabidCicada     January 6, 2011 11:32.10 CST
Never used immunity...

In answer to #2:
I'm guessing that the CTRL+A is giving you intermodular calls for the module you are currently inside of when you hit CTRL-A.

If you look at the addresses on the left in your pastebin clips you'll see that the calls are made at different locations in memory.  Different modules get loaded at different points in memory for any one executable.

#3:
It is possible but very improbable unless you are REing malware.

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