Modification of Dynamic Linker Preload Shared Object

Last updated 7 months ago on 2025-01-27

Created 5 years ago on 2021-01-27

About

Identifies modification of the dynamic linker preload shared object (ld.so.preload). Adversaries may execute malicious payloads by hijacking the dynamic linker used to load libraries.

Tags

Domain: EndpointOS: LinuxUse Case: Threat DetectionTactic: Privilege EscalationData Source: Elastic EndgameData Source: Elastic DefendLanguage: kuery

Severity

medium

Risk Score

MITRE ATT&CK™

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

↳ Hijack Execution Flow (T1574)(opens in a new tab or window)

License

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

Definition

Rule Type: New Terms Rule
Integration Pack: Prebuilt Security Detection Rules
Index Patterns: auditbeat-*logs-endpoint.events.*endgame-*
Related Integrations: endpoint(opens in a new tab or window)
Query

host.os.type:linux and event.category:file and event.action:(file_rename_event or rename or renamed or updated) and
not event.type:deletion and file.path:/etc/ld.so.preload and
process.name:(* and not (oneagentinstallaction or passwd or wine))

Install detection rules in Elastic Security

Detect Modification of Dynamic Linker Preload Shared Object 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).