> ## 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.

# Injection

## Process Injection in Apollo

Apollo has abstracted process injection into its own project and has the following techniques implemented:

* CreateRemoteThread
* QueueUserAPC (early bird)
* NtCreateThreadEx (via Syscalls)

As an operator, sometimes one injection technique is more desirable than another. To facilitate this, the [`get_injection_techniques`](/agents/apollo/commands/get_injection_techniques) command will list all currently loaded injection techniques the agent knows about. Similarly, [`set_injection_technique`](/agents/apollo/commands/set_injection_technique) will update the currently used injection technique throughout all post-exploitation jobs.

## Commands Leveraging Injection

All of Apollo's [fork and run commands](/agents/apollo/opsec/forkandrun/) use injection to inject into a sacrificial process; however, there are additional commands that inject into other processes. Those commands are:

* [`assembly_inject`](/agents/apollo/commands/assembly_inject/)
* [`inject`](/agents/apollo/commands/inject/)
* [`keylog_inject`](/agents/apollo/commands/keylog/)
* [`psinject`](/agents/apollo/commands/psinject/)
* [`shinject`](/agents/apollo/commands/shinject/)
* [`screenshot_inject`](/agents/apollo/commands/screenshot_inject)

<Note>
  Some injection techniques are incompatible with the aforementioned commands. For example: If QueueUserAPC is in use, the above commands will fail as it leverages the early bird version of QueueUserAPC, not the APC bombing technique.
</Note>