> For the complete documentation index, see [llms.txt](https://cortex-docs.paloaltonetworks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cortex-docs.paloaltonetworks.com/analytics-alerts/alerts-by-name/a-contained-process-attempted-to-escape-using-the-notify-on-release-feature.md).

# A contained process attempted to escape using the 'notify on release' feature

### Synopsis

| Field                | Value                                        |
| -------------------- | -------------------------------------------- |
| Activation Period    | 14 Days                                      |
| Training Period      | 30 Days                                      |
| Test Period          | 1 Hour                                       |
| Deduplication Period | 1 Day                                        |
| Required Data        | XDR Agent with eXtended Threat Hunting (XTH) |
| ATT\&CK Tactic       | Privilege Escalation (TA0004)                |
| ATT\&CK Technique    | Escape to Host (T1611)                       |
| Severity             | Medium                                       |

### Description

A contained process attempted to escape the host by leveraging the Docker's 'notify on release' feature. The calling process modified relevant files that might trigger a command on the host.

### Attacker's Goals

Execute arbitrary commands on the host and gain a larger foothold.

### Investigative actions

* Check which commands were executed on the host afterward.
* Look for the root cause of the execution within the container.
* Examine the release\_agent script content on the container.

### Variations

<details>

<summary>A contained process attempted to escape using the 'notify on release' feature</summary>

**Synopsis**

| Field             | Value                         |
| ----------------- | ----------------------------- |
| ATT\&CK Tactic    | Privilege Escalation (TA0004) |
| ATT\&CK Technique | Escape to Host (T1611)        |
| Severity          | Medium                        |

**Description**

A contained process attempted to escape the host by leveraging the Docker's 'notify on release' feature. The calling process modified relevant files that might trigger a command on the cloud host.

**Attacker's Goals**

Execute arbitrary commands on the host and gain a larger foothold.

**Investigative actions**

* Check which commands were executed on the host afterward.
* Look for the root cause of the execution within the container.
* Examine the release\_agent script content on the container.

</details>


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