– Many legacy banking trojans and ransomware variants were written in Delphi (e.g., early versions of Zeus, Ramnit). v110194 allows analysts to trace execution flow and recover command strings more efficiently than pure assembly debugging.
Why was a tool like this necessary? Why couldn't you just use W32Dasm?
rather than high-level Object Pascal source code. For full high-level decompilation (converting assembly back to readable Delphi code), more advanced tools like the Hex-Rays Decompiler (with appropriate plugins) are generally required. Stack Overflow Typical Use Cases Malware Analysis delphi decompiler v110194
The actual logic inside functions remains in x86 assembly language. You must understand assembly code to reverse-engineer the core algorithms.
Open the generated .pas files in Notepad++ or Delphi itself. You will need to manually rename variables (they appear as v_01 , v_02 ) and fix any jump tables that the decompiler misaligned. – Many legacy banking trojans and ransomware variants
While v110194 is a capable tool, it is important to see how it compares to other options in the Delphi reverse engineering space. Each tool has its own strengths and ideal use cases.
One credible theory: 110194 is not a version but a or an internal tool version from a now-defunct Russian software company. Another theory points to the tool being a leaked internal beta of a commercial product called "Decompiler for Delphi" sold briefly in 2002. Why couldn't you just use W32Dasm
: Extracts all DFM files (Delphi Form files), allowing users to reconstruct the visual interface of the target application.