A Delphi decompiler is a specialized tool designed to translate native machine code back into Object Pascal (Delphi) source code or a more readable pseudocode. Because the compilation process is lossy—comments, variable names, and formatting are discarded—achieving a perfect 1:1 reconstruction of the original source code is impossible. However, advanced decompilers can recover function logic, event handlers, and form designs.
Many malware families (from old ransomware to info-stealers) were written in Delphi, especially in Latin America and Eastern Europe. Analysts need decompilation tools that understand Delphi’s peculiar calling conventions and string handling. They turn to "Kuyhaa" as a known source for hard-to-find utilities. delphi decompiler kuyhaa