> 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/email-with-google-apps-script-web-app-url-detected.md).

# Email with Google Apps Script web app URL detected

### Synopsis

| Field                | Value                                                            |
| -------------------- | ---------------------------------------------------------------- |
| Activation Period    | 14 Days                                                          |
| Training Period      | 30 Days                                                          |
| Test Period          | N/A (single event)                                               |
| Deduplication Period | 1 Hour 30 Minutes                                                |
| Required Data        | Microsoft 365 Emails                                             |
| Detection Modules    | Email                                                            |
| Detector Tags        | Phishing                                                         |
| ATT\&CK Tactic       | Initial Access (TA0001), Execution (TA0002)                      |
| ATT\&CK Technique    | Phishing: Spearphishing Link (T1566.002), User Execution (T1204) |
| Severity             | Informational                                                    |

### Description

A Google Apps Script web application URL was detected in the email body. While Google Apps Script web app URLs can be used for legitimate business workflows, they are relatively uncommon in emails. Attackers may abuse these URLs to host phishing pages, collect sensitive information, or redirect recipients to malicious or deceptive websites.

### Attacker's Goals

Attackers abuse Google Apps Script's trusted hosting to serve phishing pages, harvest credentials, or redirect victims to malicious destinations while evading reputation-based email filters.

### Investigative actions

* Examine the sender's IP address and reputation.
* Manually inspect the Apps Script endpoint content (in a safe environment) to determine whether it renders a phishing page, a redirect, or benign content.
* Verify whether the sender has legitimate business reason to share Apps Script links with the recipient.
* Monitor further actions taken by the recipient, such as credential entry or downstream navigation.


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