Sigma rule: Modification of ld.so.preload

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-c0cb901b582e, updated 2021-11-27T00:00:00.000Z.

Rule

Title
Modification of ld.so.preload
Status
test
Level
high
Author
E.M. Anhaus (originally from Atomic Blue Detections, Tony Lambert), oscd.community
Date
2019-10-24
Modified
2021-11-27
File
rules/linux/auditd/path/lnx_auditd_ld_so_preload_mod.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Identifies modification of ld.so.preload for shared object injection. This technique is used by attackers to load arbitrary code into processes.

Log source

product
linux
service
auditd

Detection

selection:
    type: 'PATH'
    name: '/etc/ld.so.preload'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.privilege-escalation
  • attack.persistence
  • attack.execution
  • attack.stealth
  • attack.t1574.006

MITRE ATT&CK ids this rule names

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/linux/auditd/path/lnx_auditd_ld_so_preload_mod.yml

Sources and licences

  • SigmaHQ

    "Modification of ld.so.preload" by E.M. Anhaus (originally from Atomic Blue Detections, Tony Lambert), oscd.community (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/linux/auditd/path/lnx_auditd_ld_so_preload_mod.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Modification of ld.so.preload",
entity page, dataset version ref-c0cb901b582e, updated 2021-11-27T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/4b3cb710-5e83-4715-8c45-8b2b5b3e5751 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 4b3cb710-5e83-4715-8c45-8b2b5b3e5751, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.