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Embedded code in .doc file

Parth Gupta 180 Reputation points
2023-06-06T15:55:50.6233333+00:00

Hi,

I learned that we could embed VBA code in .doc files (OLE files) via Macros, some of which may execute automatically when we open the file.

My question is as follows:
1)Can we embed code from other languages (like C++) which will execute automatically when the file is opened?

2)If so, then how can you find the embedded code(other than VBA)?

Thanks.

Windows 10 Security
Windows 10 Security
Windows 10: A Microsoft operating system that runs on personal computers and tablets.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
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  1. Limitless Technology 44,421 Reputation points
    2023-06-07T12:05:40.6333333+00:00

    Hello Parth,

    Thank you for your question and for reaching out with your question today.

    1. Yes, it is possible to embed code from other languages like C++ in certain types of files, including OLE files. However, the execution of such code upon opening the file would depend on the specific software or application that is designed to handle and interpret that file format. Generally, the ability to execute embedded code automatically would require the file viewer or application to have the necessary capabilities to interpret and execute code in that specific language. It is not a common practice to embed executable code from languages like C++ directly into document files, as it can pose security risks.
    2. Finding embedded code in files can be a complex task and may require specialised tools or techniques depending on the file format and the nature of the embedded code. To identify embedded code in files other than VBA, you can try the following:
    • Use a hex editor: Open the file in a hex editor and search for specific code patterns or signatures associated with the language you are looking for. This can help you identify sections of the file that contain embedded code.
    • Use file analysis tools: There are various tools available that can analyze files for embedded code. These tools can detect and identify different types of embedded code, including code from languages other than VBA. Examples of such tools include static analysis tools, reverse engineering tools, and antivirus software.
    • Inspect metadata and file properties: Some file formats may store metadata or file properties that indicate the presence of embedded code. You can check the file properties or examine the metadata of the file to see if there are any indications of embedded code or scripting.

    I’ve used Chat GPT to formulate part of this response. I’ve verified that the solution is accurate before sharing it here with you.

    If the reply was helpful, please don’t forget to upvote or accept as answer.

    Best regards.

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