Detection rules › Sigma
Modification of ld.so.preload
Identifies modification of ld.so.preload for shared object injection. This technique is used by attackers to load arbitrary code into processes.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution | T1574.006 Hijack Execution Flow: Dynamic Linker Hijacking |
| Stealth | T1574.006 Hijack Execution Flow: Dynamic Linker Hijacking |
Event coverage
| Provider | Event |
|---|---|
| Linux-Auditd | Event ID 1302 |
Rule body yaml
title: Modification of ld.so.preload
id: 4b3cb710-5e83-4715-8c45-8b2b5b3e5751
status: test
description: Identifies modification of ld.so.preload for shared object injection. This technique is used by attackers to load arbitrary code into processes.
references:
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1574.006/T1574.006.md
- https://eqllib.readthedocs.io/en/latest/analytics/fd9b987a-1101-4ed3-bda6-a70300eaf57e.html
author: E.M. Anhaus (originally from Atomic Blue Detections, Tony Lambert), oscd.community
date: 2019-10-24
modified: 2021-11-27
tags:
- attack.privilege-escalation
- attack.persistence
- attack.execution
- attack.stealth
- attack.t1574.006
logsource:
product: linux
service: auditd
detection:
selection:
type: 'PATH'
name: '/etc/ld.so.preload'
condition: selection
falsepositives:
- Unknown
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
type: 'PATH'
name: '/etc/ld.so.preload'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.