> For the complete documentation index, see [llms.txt](https://docs.reveald.com/technical-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.reveald.com/technical-documentation/admin-guides/epiphany-validation-engine-users-guide/chapter-3-eve-platform/navigation-tabs/emulation-control/packages/package-categories.md).

# Package Categories

In EVE, the following terms are used to name packages: 

<mark style="color:blue;">**Known**</mark>&#x20;

This type of package only holds samples that are already known and detected by security solutions and whose behavior is of low impact on the host.&#x20;

<mark style="color:blue;">**Challenger**</mark>&#x20;

This package has obfuscated samples. &#x20;

<mark style="color:blue;">**Interactive**</mark>&#x20;

It has samples that can use command and control (C2) callback functionality, or samples that can be interacted with in the EndPoint after emulation.&#x20;

<mark style="color:blue;">**Zero**</mark>&#x20;

It has samples created by EVE with malicious methodologies and a specific target, dangerous and challenging for security solutions. &#x20;

<mark style="color:blue;">**Uncategorized**</mark>&#x20;

If the user are not sure in which category to place the package, the user can use this option.&#x20;