Bin extractor online1/2/2023 ![]() Then the vbaProject.bin OLE file contains the same VBA project structure as described above for MS Office 97-2003 documents. However, VBA macros are usually stored in a binary OLE file within the Zip archive, called " vbaProject.bin". MS Office 2007 file formats, also called MS Open XML, are quite different because they are made of XML files stored in Zip archives. ![]() But since this keyword is VBA code, it may be possible to tweak macros to evade detection. Some tools such as oledump (see below) use a simpler heuristic, looking for any stream containing the string "\x00Attribut", which is in fact the very first VBA keyword found at the beginning of the code of most macros. Luckily, several open-source tools are now available for this task. This is why extracting VBA source code is not straightforward. It is necessary to parse binary structures in the VBA/dir stream (also compressed with the same RLE algorithm) in order to find the exact offset of the compressed VBA content in the code streams. Moreover, the compressed content does not start at the beginning of those streams. ![]() The code is not stored in clear text: It is compressed using a specific run-length encoding algorithm described in. The VBA source code is stored in one ore several streams located in the VBA storage (for example "ThisDocument" in the sample above). two streams VBA/_VBA_PROJECT and VBA/dir (within VBA)."Macros"or "_VBA_PROJECT_CUR") must contain at least the following elements (case-insensitive names): PowerPoint 97-2003: VBA macros are stored within the binary structure of the presentation, not in an OLE storage.Īccording to, a VBA project root (e.g. ![]() ![]() Excel 97-2003: in a storage called "_VBA_PROJECT_CUR", at the root of the OLE file.Word 97-2003: in a storage called "Macros", at the root of the OLE file.VBA macros are normally contained in a VBA project structure, located in different places depending on the document type: ![]()
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