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  #1  
Old 06-09-2019, 15:27
jonwil jonwil is offline
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Reverse engineering Delphi executables?

Does anyone have any pointers on how to reverse engineer Borland Delphi executables? (I dont have a clue what version of Delphi my program was built with). Any files that will help recognize Delphi functions in the exe? Or dump information about forms and units?
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Old 06-09-2019, 16:29
RiRye RiRye is offline
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IDR is a good place to start, should do most of what you are looking for that is Delphi specific.

https://github.com/crypto2011/IDR

There are also a few IDA plugins/scripts to help you out as well depending on your needs.

Last edited by RiRye; 06-09-2019 at 16:30. Reason: Ass -> as
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Old 06-10-2019, 15:44
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Nacho_dj Nacho_dj is offline
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Check here the Collaborative RCE Tool Library to get two tools more:
Code:
http://www.woodmann.com/collaborative/tools/index.php/Category:Delphi_Decompilers
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Old 06-10-2019, 20:15
xobor xobor is offline
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dede and ida - is all that you need


best regards
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Old 06-13-2019, 03:12
zeffy zeffy is offline
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IDR can be good for viewing class metadata and generating scripts that can (sometimes) improve IDA results, although they usually need to be manually edited to fix some bogus results.

With IDA I've noticed sometimes it doesn't automatically detect a Delphi executable, so you can improve the analysis by:

- Open the executable but uncheck automatic analysis.
- Options -> Compiler to Delphi with calling convention Fastcall.
- Set the default string literals to Delphi or Delphi (16 bits), depending on how recent the executable is.
- View -> Open Subviews -> Type libraries, remove the defaults.
- View -> Open Subviews -> Signatures, remove the default and add the flirt signatures for your target (for example "bds" for Delphi 6/7), and mssdk32/64.
- Finally, start the analysis.

This can help quite a bit, although the flirt signatures tend to have a lot of false positives for VCL functions, so just be aware.
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