Elastic Security Detection Rules

Suspicious Powershell Script

Last updated 5 months ago on 2025-03-20
Created 5 years ago on 2020-03-25

About

A machine learning job detected a PowerShell script with unusual data characteristics, such as obfuscation, that may be a characteristic of malicious PowerShell script text blocks.
Tags
Domain: EndpointOS: WindowsUse Case: Threat DetectionRule Type: MLRule Type: Machine LearningTactic: Execution
Severity
low
Risk Score
21
MITRE ATT&CK™

Execution (TA0002)(opens in a new tab or window)

↳ Command and Scripting Interpreter (T1059)(opens in a new tab or window)

False Positive Examples
Certain kinds of security testing may trigger this alert. PowerShell scripts that use high levels of obfuscation or have unusual script block payloads may trigger this alert.
License
Elastic License v2(opens in a new tab or window)

Definition

Rule Type
Machine Learning
Integration Pack
Prebuilt Security Detection Rules
Related Integrations

endpoint(opens in a new tab or window)

windows(opens in a new tab or window)

Query

Install detection rules in Elastic Security

Detect Suspicious Powershell Script 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).