IDA Pro Disassembler & Debugger 5.1
The Interactive Disassembler, more commonly known as simply IDA, is a commercial disassembler widely used for reverse engineering. It supports a variety of executable formats for different processors and operating systems. It also can be used as a debugger for Windows PE, Mac OS X Mach-O, and Linux ELF executables.
Although IDA performs a large degree of automatic code analysis to a certain extent, leveraging cross-references between code sections, knowledge of parameters of API calls, and other information, it is focused on being interactive. A typical IDA user will begin with an automatically generated disassembly listing and then rename, annotate, or otherwise add information to the listing, until it becomes clear what it does, creating an effective reverse-engineering.
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