Suspicious LD_PRELOAD Library Injection at Execution (via process_creation)

ATT&CK techniques

Execution → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
- T1574.006Dynamic Linker Hijacking
Persistence
- T1574.006Dynamic Linker Hijacking
Priv Esc
- T1574.006Dynamic Linker Hijacking
Defense Evasion
- T1574.006Dynamic Linker Hijacking
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects a process launched with an inline LD_PRELOAD assignment that forces loading of a specified shared object. The Linux rootkits research shows this technique hooks library calls to hide activity and steal credentials. Because developers occasionally use LD_PRELOAD for debugging the rule is heuristic and should be reviewed against the target binary and library path.

Reporting behind it

Related detections9 linkedT1574.006 — drag to rearrange

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Malicious TeamTNT prochider Rootkit Deployment as Shared Object (via file_event)

Malicious perfctl Rootkit Library Drop via ld.so.preload (via file_event)

Malicious Shared Library Preload Persistence via ld.so.preload (via process_creation)

Suspicious LD_PRELOAD Library Injection at Execution (via process_creation)

Pivot detection · T1574.006 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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