Sigma rule: Potential Suspicious BPF Activity - Linux

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-554643501df0, updated 2023-01-25T00:00:00.000Z.

Rule

Title
Potential Suspicious BPF Activity - Linux
Status
test
Level
high
Author
Red Canary (idea), Nasreddine Bencherchali
Date
2023-01-25
File
rules/linux/builtin/lnx_potential_susp_ebpf_activity.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the presence of "bpf_probe_write_user" BPF helper-generated warning messages. Which could be a sign of suspicious eBPF activity on the system.

Log source

product
linux

Detection

selection:
    - 'bpf_probe_write_user'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.persistence
  • attack.stealth

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/builtin/lnx_potential_susp_ebpf_activity.yml

Sources and licences

  • SigmaHQ

    "Potential Suspicious BPF Activity - Linux" by Red Canary (idea), Nasreddine Bencherchali (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/linux/builtin/lnx_potential_susp_ebpf_activity.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: Potential Suspicious BPF Activity - Linux",
entity page, dataset version ref-554643501df0, updated 2023-01-25T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/0fadd880-6af3-4610-b1e5-008dc3a11b8a (accessed 2026-11-03).
Underlying source: SigmaHQ rule 0fadd880-6af3-4610-b1e5-008dc3a11b8a, 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.