> ## Documentation Index
> Fetch the complete documentation index at: https://docs.specterops.io/llms.txt
> Use this file to discover all available pages before exploring further.

# execute_library

## Summary

Load a dylib from disk and execute a function from within it.

* Needs Admin: False
* Version: 1
* Author: @its\_a\_feature\_

### Arguments

#### function\_name

* Description: Name of the function within the dylib to be executed
* Required Value: True
* Default Value: None

#### file\_path

* Description: Path of the file on disk to load (or path of where to upload file on disk)
* Required Value: True
* Default Value: None

#### args

* Description: Array of string args to pass to the function
* Required Value: True
* Default Value: None

#### file\_id

* Description: File UUID of newly uploaded file (if uploading new file)
* Required Value: False
* Default Value: None

## Usage

```
execute_library -file_path /Users/itsafeature/Desktop/evil.dylib -function_name evil -args a -args "something else" -args "blah"
```

## Detailed Summary

This command uses dlopen and dylsim to open a library on disk and execute a function within it.
This is used instead of NSCreateFileObjectImageFromMemory because that function will write out your in-memory library first to disk in a known location, which makes it more suspicious.