> 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/uncommon-access-to-microsoft-teams-cookies-files.md).
# Uncommon access to Microsoft Teams cookies files
### Synopsis
| Field | Value |
| -------------------- | -------------------------------------------------------------------------------- |
| Activation Period | 14 Days |
| Training Period | 30 Days |
| Test Period | 10 Minutes |
| Deduplication Period | 1 Day |
| Required Data | XDR Agent with eXtended Threat Hunting (XTH) |
| Detection Modules | Identity Analytics |
| Detector Tags | Microsoft Teams |
| ATT\&CK Tactic | Credential Access (TA0006) |
| ATT\&CK Technique | Credentials from Password Stores (T1555), Steal Application Access Token (T1528) |
| Severity | Informational |
### Description
Sensitive Microsoft Teams cookies files were accessed.
### Attacker's Goals
Attacker may access credentials files and steal application access tokens to gain remote access.
### Investigative actions
* Investigate the actor process to determine if it was used for legitimate purposes or malicious activity.
* Review the host for any additional unusual activity.
* Investigate the Graph API calls followed by the user that might be related.
### Variations
Suspicious uncommon access to Microsoft Teams cookies files
**Synopsis**
| Field | Value |
| ----------------- | -------------------------------------------------------------------------------- |
| ATT\&CK Tactic | Credential Access (TA0006) |
| ATT\&CK Technique | Credentials from Password Stores (T1555), Steal Application Access Token (T1528) |
| Severity | Low |
**Description**
Sensitive Microsoft Teams cookies files were accessed by a suspicious process.
**Attacker's Goals**
Attacker may access credentials files and steal application access tokens to gain remote access.
**Investigative actions**
* Investigate the actor process to determine if it was used for legitimate purposes or malicious activity.
* Review the host for any additional unusual activity.
* Investigate the Graph API calls followed by the user that might be related.
---
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