> 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/rare-process-accessed-a-keychain-file.md).
# Rare process accessed a Keychain file
### Synopsis
| Field | Value |
| -------------------- | ------------------------------------------------------ |
| Activation Period | 14 Days |
| Training Period | 30 Days |
| Test Period | N/A (single event) |
| Deduplication Period | 1 Day |
| Required Data | XDR Agent with eXtended Threat Hunting (XTH) |
| Detector Tags | Credentials Grabbing Analytics |
| ATT\&CK Tactic | Credential Access (TA0006) |
| ATT\&CK Technique | Credentials from Password Stores: Keychain (T1555.001) |
| Severity | Informational |
### Description
An unusual process accessed a Keychain file. This might indicate a credential-grabbing attempt.
### Attacker's Goals
Obtain access to credentials stored in the Keychain file.
### Investigative actions
* Determine whether it is legitimate for the process to access credential data directly.
* Analyze the process/application that touched the Keychain.
* Check for any other suspicious actions that were performed by the process.
* Look for unusual access to resources using credentials stored on said Keychain.
### Variations
Rare process accessed a Keychain file using the networksetup tool
**Synopsis**
| Field | Value |
| ----------------- | ---------------------------------------------------------------------------------------------- |
| ATT\&CK Tactic | Credential Access (TA0006), Reconnaissance (TA0043) |
| ATT\&CK Technique | Credentials from Password Stores: Keychain (T1555.001), Gather Victim Host Information (T1592) |
| Severity | High |
**Description**
An unusual process accessed a Keychain file. This might indicate a credential-grabbing attempt.
**Attacker's Goals**
Obtain access to credentials stored in the Keychain file.
**Investigative actions**
* Determine whether it is legitimate for the process to access credential data directly.
* Analyze the process/application that touched the Keychain.
* Check for any other suspicious actions that were performed by the process.
* Look for unusual access to resources using credentials stored on said Keychain.
Rare process accessed a Keychain file while installing a new certificate
**Synopsis**
| Field | Value |
| ----------------- | -------------------------------------------------------------------------------------------------------------------- |
| ATT\&CK Tactic | Credential Access (TA0006), Defense Evasion (TA0005) |
| ATT\&CK Technique | Credentials from Password Stores: Keychain (T1555.001), Subvert Trust Controls: Install Root Certificate (T1553.004) |
| Severity | Medium |
**Description**
An unusual process accessed a Keychain file. This might indicate a credential-grabbing attempt.
**Attacker's Goals**
Obtain access to credentials stored in the Keychain file.
**Investigative actions**
* Determine whether it is legitimate for the process to access credential data directly.
* Analyze the process/application that touched the Keychain.
* Check for any other suspicious actions that were performed by the process.
* Look for unusual access to resources using credentials stored on said Keychain.
Rare process accessed a Keychain file initiated by a causality actor with a rare path
**Synopsis**
| Field | Value |
| ----------------- | ------------------------------------------------------ |
| ATT\&CK Tactic | Credential Access (TA0006) |
| ATT\&CK Technique | Credentials from Password Stores: Keychain (T1555.001) |
| Severity | Low |
**Description**
An unusual process accessed a Keychain file. This might indicate a credential-grabbing attempt.
**Attacker's Goals**
Obtain access to credentials stored in the Keychain file.
**Investigative actions**
* Determine whether it is legitimate for the process to access credential data directly.
* Analyze the process/application that touched the Keychain.
* Check for any other suspicious actions that were performed by the process.
* Look for unusual access to resources using credentials stored on said Keychain.
Rare process accessed a Keychain file initiated by an unsigned causality actor
**Synopsis**
| Field | Value |
| ----------------- | ------------------------------------------------------ |
| ATT\&CK Tactic | Credential Access (TA0006) |
| ATT\&CK Technique | Credentials from Password Stores: Keychain (T1555.001) |
| Severity | Low |
**Description**
An unusual process accessed a Keychain file. This might indicate a credential-grabbing attempt.
**Attacker's Goals**
Obtain access to credentials stored in the Keychain file.
**Investigative actions**
* Determine whether it is legitimate for the process to access credential data directly.
* Analyze the process/application that touched the Keychain.
* Check for any other suspicious actions that were performed by the process.
* Look for unusual access to resources using credentials stored on said Keychain.
Rare unsigned process accessed a Keychain file
**Synopsis**
| Field | Value |
| ----------------- | ------------------------------------------------------ |
| ATT\&CK Tactic | Credential Access (TA0006) |
| ATT\&CK Technique | Credentials from Password Stores: Keychain (T1555.001) |
| Severity | Low |
**Description**
An unusual process accessed a Keychain file. This might indicate a credential-grabbing attempt.
**Attacker's Goals**
Obtain access to credentials stored in the Keychain file.
**Investigative actions**
* Determine whether it is legitimate for the process to access credential data directly.
* Analyze the process/application that touched the Keychain.
* Check for any other suspicious actions that were performed by the process.
* Look for unusual access to resources using credentials stored on said Keychain.
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://cortex-docs.paloaltonetworks.com/analytics-alerts/alerts-by-name/rare-process-accessed-a-keychain-file.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.