# CHM
Creating a CHM can be done using the Free Pascal Compiler or Ide on Linux
```bash
sudo apt-get install fp-ide
sudo apt-get install fp-compiler
```
The CHM can be compiled using the installed 'chmcmd' program.
---
### Guide
Thanks, Copilot:
#### 📁 Step-by-Step Guide
##### Make Content
```
MyHelpProject/
├── index.html
├── topic1.html
├── topic2.html
├── styles.css
└── images/
└── example.png
```
##### Embed a Payload
```html
Hello world
```
##### Create the Project (.hhp file)
[Note the following reference on the format](https://www.nongnu.org/chmspec/latest/INI.html#HHP)
```
[OPTIONS]
Title=CHM
Default topic=file1.htm
Compiled file=chm.chm
Index file=index.htm
[FILES]
index.htm
file1.htm
```
##### Compile
```bash
chmcmd project.hhp
```
This will produce project.chm.
**On Linux, you may need libchm or chmcmd compiled with support for it.**
---
References:
- [https://wiki.freepascal.org/htmlhelp\_compiler](https://wiki.freepascal.org/htmlhelp_compiler)
- [https://www.nongnu.org/chmspec/latest/](https://www.nongnu.org/chmspec/latest/)
-
- [https://learn.microsoft.com/en-us/previous-versions/windows/desktop/htmlhelp/creating-a-project-file](https://learn.microsoft.com/en-us/previous-versions/windows/desktop/htmlhelp/creating-a-project-file)
- [https://www.alexthayer.com/UsingHHPFiles.pdf](https://www.alexthayer.com/UsingHHPFiles.pdf)
-
- [https://medium.com/r3d-buck3t/weaponize-chm-files-with-powershell-nishang-c98b93f79f1e](https://medium.com/r3d-buck3t/weaponize-chm-files-with-powershell-nishang-c98b93f79f1e)
- [https://www.forcepoint.com/blog/x-labs/microsoft-compiled-html-help-threat](https://www.forcepoint.com/blog/x-labs/microsoft-compiled-html-help-threat)
- [https://github.com/v4resk/red-book/blob/main/redteam/weapon/code-execution/html-help-files.md](https://github.com/v4resk/red-book/blob/main/redteam/weapon/code-execution/html-help-files.md)
-