Elastic Security Detection Rules

Potential Microsoft Office Sandbox Evasion

Last updated 5 months ago on 2025-03-18
Created 5 years ago on 2021-01-11

About

Identifies the creation of a suspicious zip file prepended with special characters. Sandboxed Microsoft Office applications on macOS are allowed to write files that start with special characters, which can be combined with an AutoStart location to achieve sandbox evasion.
Tags
Domain: EndpointOS: macOSUse Case: Threat DetectionTactic: Defense EvasionData Source: Elastic DefendLanguage: eql
Severity
high
Risk Score
73
MITRE ATT&CK™

Defense Evasion (TA0005)(opens in a new tab or window)

↳ Virtualization/Sandbox Evasion (T1497)(opens in a new tab or window)

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

Definition

Rule Type
Event Correlation Rule
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
logs-endpoint.events.*
Related Integrations

endpoint(opens in a new tab or window)

Query
file where host.os.type == "macos" and event.action in ("modification", "rename") and file.name like~ "~$*.zip"

Install detection rules in Elastic Security

Detect Potential Microsoft Office Sandbox Evasion 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).