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The IDA Pro Book, 2nd Edition by Chris Eagle

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IDA Database Files

When you are happy with your loading options and click OK to close the dialog, the real work of loading the file begins. At this point, IDA’s goal is to load the selected executable file into memory and to analyze the relevant portions. This results in the creation of an IDA database whose components are stored in four files, each with a base name matching the selected executable and whose extensions are .id0, .id1, .nam, and .til. The .id0 file contains the content of a B-tree–style database, while the .id1 file contains flags that describe each program byte. The .nam file contains index information related to named program locations as displayed in IDA’s Names window (discussed further in Chapter 5). Finally, the .til file ...

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