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Microsoft Word performs file data validation before opening a file. Data validation is performed in the form of data structure identification, against the OfficeOpenXML standard. If any error occurs during the data structure identification, the file being analysed will not be opened.
Usually, Word files containing macros use the `.docm` extension. However, it's possible to rename the file by changing the file extension and still keep their macro executing capabilities.\
For example, an RTF file does not support macros, by design, but a DOCM file renamed to RTF will be handled by Microsoft Word and will be capable of macro execution.\
The same internals and mechanisms apply to all software of the Microsoft Office Suite (Excel, PowerPoint etc.).
Fo to **File > Info > Inspect Document > Inspect Document**, which will bring up the Document Inspector. Click **Inspect** and then **Remove All** next to **Document Properties and Personal Information**.
#### Doc Extension
When finished, select **Save as type** dropdown, change the format from **`.docx`** to **Word 97-2003 `.doc`**.\
Do this because you **can't save macro's inside a `.docx`** and there's a **stigma****around** the macro-enabled **`.docm`** extension (e.g. the thumbnail icon has a huge `!` and some web/email gateway block them entirely). Therefore, this **legacy `.doc` extension is the best compromise**.
An HTA is a Windows program that **combines HTML and scripting languages (such as VBScript and JScript)**. It generates the user interface and executes as a "fully trusted" application, without the constraints of a browser's security model.
An HTA is executed using **`mshta.exe`**, which is typically **installed** along with **Internet Explorer**, making **`mshta` dependant on IE**. So if it has been uninstalled, HTAs will be unable to execute.
There are several ways to **force NTLM authentication "remotely"**, for example, you could add **invisible images** to emails or HTML that the user will access (even HTTP MitM?). Or send the victim the **address of files** that will **trigger** an **authentication** just for **opening the folder.**
* Do you work in a **cybersecurity company**? Do you want to see your **company advertised in HackTricks**? or do you want to have access to the **latest version of the PEASS or download HackTricks in PDF**? Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
* Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
* Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
* **Join the** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** 🐦[**@carlospolopm**](https://twitter.com/hacktricks_live)**.**
* **Share your hacking tricks by submitting PRs to the [hacktricks repo](https://github.com/carlospolop/hacktricks) and [hacktricks-cloud repo](https://github.com/carlospolop/hacktricks-cloud)**.