> 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/unusual-aws-s3-objects-deletion.md).
# Unusual AWS S3 objects deletion
### Synopsis
| Field | Value |
| -------------------- | --------------------------------------------------------- |
| Activation Period | 14 Days |
| Training Period | 30 Days |
| Test Period | 1 Hour |
| Deduplication Period | 5 Days |
| Required Data | AWS Audit Log |
| Detection Modules | Cloud |
| ATT\&CK Tactic | Impact (TA0040) |
| ATT\&CK Technique | Inhibit System Recovery (T1490), Data Destruction (T1485) |
| Severity | Informational |
### Description
An identity deleted multiple S3 bucket objects from the project, considerably more than usual.
### Attacker's Goals
* Adversaries may delete data to prevent the recovery of a corrupted system.
* They may also aim to interrupt availability to resources.
### Investigative actions
* Identify the deleted objects and their containing bucket.
* Investigate the identity that performed the deletion and review recent related activity.
### Variations
A non administrative identity deleted multiple S3 objects from a project
**Synopsis**
| Field | Value |
| ----------------- | --------------------------------------------------------- |
| ATT\&CK Tactic | Impact (TA0040) |
| ATT\&CK Technique | Inhibit System Recovery (T1490), Data Destruction (T1485) |
| Severity | Low |
**Description**
An identity deleted multiple S3 bucket objects from the project, considerably more than usual.
**Attacker's Goals**
* Adversaries may delete data to prevent the recovery of a corrupted system.
* They may also aim to interrupt availability to resources.
**Investigative actions**
* Identify the deleted objects and their containing bucket.
* Investigate the identity that performed the deletion and review recent related activity.
An identity permanently deleted multiple S3 objects from a project
**Synopsis**
| Field | Value |
| ----------------- | --------------------------------------------------------- |
| ATT\&CK Tactic | Impact (TA0040) |
| ATT\&CK Technique | Inhibit System Recovery (T1490), Data Destruction (T1485) |
| Severity | Medium |
**Description**
An identity deleted multiple S3 bucket objects from the project, considerably more than usual.
**Attacker's Goals**
* Adversaries may delete data to prevent the recovery of a corrupted system.
* They may also aim to interrupt availability to resources.
**Investigative actions**
* Identify the deleted objects and their containing bucket.
* Investigate the identity that performed the deletion and review recent related activity.
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