> 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-driver-loaded.md).
# Uncommon driver loaded
### 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 |
| ATT\&CK Tactic | Defense Evasion (TA0005) |
| ATT\&CK Technique | Rootkit (T1014) |
| Severity | Low |
### Description
An uncommon driver loaded which may be an attempt to kill the EDR or install rootkit.
### Attacker's Goals
Install rootkit to gain kernel-level to gain full control over the machine or disable security products.
### Investigative actions
Investigate which process created the driver or how it has been loaded.
### Variations
Uncommon driver loaded by a Web server process
**Synopsis**
| Field | Value |
| ----------------- | ------------------------ |
| ATT\&CK Tactic | Defense Evasion (TA0005) |
| ATT\&CK Technique | Rootkit (T1014) |
| Severity | High |
**Description**
An uncommon driver loaded which may be an attempt to kill the EDR or install rootkit by a Web server process.
**Attacker's Goals**
Install rootkit to gain kernel-level to gain full control over the machine or disable security products.
**Investigative actions**
Investigate which process created the driver or how it has been loaded.
Globally rare and unsigned driver loaded
**Synopsis**
| Field | Value |
| ----------------- | ------------------------ |
| ATT\&CK Tactic | Defense Evasion (TA0005) |
| ATT\&CK Technique | Rootkit (T1014) |
| Severity | Medium |
**Description**
Globally rare and unsigned driver loaded.
**Attacker's Goals**
Install rootkit to gain kernel-level to gain full control over the machine or disable security products.
**Investigative actions**
Investigate which process created the driver or how it has been loaded.
Uncommon driver with a globally rare vendor loaded as a service
**Synopsis**
| Field | Value |
| ----------------- | ------------------------ |
| ATT\&CK Tactic | Defense Evasion (TA0005) |
| ATT\&CK Technique | Rootkit (T1014) |
| Severity | Medium |
**Description**
An uncommon driver loaded which may be an attempt to kill the EDR or install rootkit.
**Attacker's Goals**
Install rootkit to gain kernel-level to gain full control over the machine or disable security products.
**Investigative actions**
Investigate which process created the driver or how it has been loaded.
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