Elastic Security Detection Rules

Suspicious SeIncreaseBasePriorityPrivilege Use

Last updated 10 days ago on 2025-09-25
Created 10 days ago on 2025-09-25

About

Identifies attempts to use the SeIncreaseBasePriorityPrivilege privilege by an unusual process. This could be related to hijack execution flow of a process via threats priority manipulation.
Tags
Domain: EndpointOS: WindowsUse Case: Threat DetectionTactic: Privilege EscalationData Source: Windows Security Event LogsLanguage: kuery
Severity
high
Risk Score
73
MITRE ATT&CK™

Privilege Escalation (TA0004)(opens in a new tab or window)

↳ Access Token Manipulation (T1134)(opens in a new tab or window)

License
Elastic License v2(opens in a new tab or window)

Definition

Rule Type
Query (Kibana Query Language)
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
logs-system.security*logs-windows.forwarded*winlogbeat-*
Related Integrations

system(opens in a new tab or window)

windows(opens in a new tab or window)

Query
event.category:iam and event.code:"4674" and
winlog.event_data.PrivilegeList:"SeIncreaseBasePriorityPrivilege" and event.outcome:"success" and
winlog.event_data.AccessMask:"512" and not winlog.event_data.SubjectUserSid:("S-1-5-18" or "S-1-5-19" or "S-1-5-20")

Install detection rules in Elastic Security

Detect Suspicious SeIncreaseBasePriorityPrivilege Use in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).