> 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/suspicious-modification-of-the-adminsdholder-s-acl.md).

# Suspicious modification of the AdminSDHolder's ACL

### Synopsis

| Field                | Value                                                                                                                         |
| -------------------- | ----------------------------------------------------------------------------------------------------------------------------- |
| Activation Period    | 14 Days                                                                                                                       |
| Training Period      | 30 Days                                                                                                                       |
| Test Period          | N/A (single event)                                                                                                            |
| Deduplication Period | 1 Day                                                                                                                         |
| Required Data        | <p>Requires one of the following data sources:<br>Windows Event Collector OR XDR Agent with eXtended Threat Hunting (XTH)</p> |
| Detection Modules    | Identity Analytics                                                                                                            |
| ATT\&CK Tactic       | Persistence (TA0003)                                                                                                          |
| ATT\&CK Technique    | Account Manipulation (T1098)                                                                                                  |
| Severity             | Low                                                                                                                           |

### Description

A user modified the AdminSDHolder ACL, which may be an indication of a privilege escalation attack.

### Attacker's Goals

Attackers attempt to obtain full control privileges and then move laterally.

### Investigative actions

* Check if a new user was added to the AdminSDHolder object.
* Check if a suspicious user account was recently created.
* Check if a user was added to a privileged group (e.g. Domain Admins).
* Investigate any other potentially suspicious behavior from the compromised user.
* Search for actions that may trigger SDProp, such as modifying the registry or executing an LDAP query.


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