Sigma rule: Triple Cross eBPF Rootkit Default Persistence

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-4eb9c3202abe, updated 2022-12-31T00:00:00.000Z.

Rule

Title
Triple Cross eBPF Rootkit Default Persistence
Status
test
Level
high
Author
Nasreddine Bencherchali (Nextron Systems)
Date
2022-07-05
Modified
2022-12-31
File
rules/linux/file_event/file_event_lnx_triple_cross_rootkit_persistence.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the creation of "ebpfbackdoor" files in both "cron.d" and "sudoers.d" directories. Which both are related to the TripleCross persistence method

Log source

product
linux
category
file_event

Detection

selection:
    TargetFilename|endswith: 'ebpfbackdoor'
condition: selection

False positives (as the rule lists them)

  • Unlikely

Tags

  • attack.privilege-escalation
  • attack.execution
  • attack.persistence
  • attack.t1053.003

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/file_event/file_event_lnx_triple_cross_rootkit_persistence.yml

Sources and licences

  • SigmaHQ

    "Triple Cross eBPF Rootkit Default Persistence" by Nasreddine Bencherchali (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/linux/file_event/file_event_lnx_triple_cross_rootkit_persistence.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: Triple Cross eBPF Rootkit Default Persistence",
entity page, dataset version ref-4eb9c3202abe, updated 2022-12-31T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/1a2ea919-d11d-4d1e-8535-06cda13be20f (accessed 2026-11-03).
Underlying source: SigmaHQ rule 1a2ea919-d11d-4d1e-8535-06cda13be20f, 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.