IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

« Modification of Boot Configuration Modification of Environment Variable via Launchctl »

› › ›

Modification of Dynamic Linker Preload Shared Object

edit

Modification of Dynamic Linker Preload Shared Object

edit

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.

Rule type: query

Rule indices:

auditbeat-*
logs-endpoint.events.*

Severity: medium

Risk score: 47

Runs every: 5 minutes

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

https://www.anomali.com/blog/rocke-evolves-its-arsenal-with-a-new-malware-family-written-in-golang

Tags:

Elastic
Host
Linux
Threat Detection
Privilege Escalation

Version: 100 (version history)

Added (Elastic Stack release): 7.12.0

Last modified (Elastic Stack release): 8.5.0

Rule authors: Elastic

Rule license: Elastic License v2

Rule query

edit

event.category:file and not event.type:deletion and
file.path:/etc/ld.so.preload

Threat mapping

edit

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Privilege Escalation
- ID: TA0004
- Reference URL: https://attack.mitre.org/tactics/TA0004/
Technique:
- Name: Hijack Execution Flow
- ID: T1574
- Reference URL: https://attack.mitre.org/techniques/T1574/

Rule version history

edit

Version 100 (8.5.0 release)

Formatting only

Version 3 (8.4.0 release)

Formatting only

Version 2 (7.15.0 release)

Formatting only

« Modification of Boot Configuration Modification of Environment Variable via Launchctl »