Sigma rule: Capabilities Discovery - Linux

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-310261438b0f, updated 2026-01-24T00:00:00.000Z.

Rule

Title
Capabilities Discovery - Linux
Status
test
Level
low
Author
Nasreddine Bencherchali (Nextron Systems)
Date
2022-12-28
Modified
2026-01-24
File
rules/linux/process_creation/proc_creation_lnx_capa_discovery.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects usage of "getcap" binary. This is often used during recon activity to determine potential binaries that can be abused as GTFOBins or other.

Log source

product
linux
category
process_creation

Detection

selection:
    Image|endswith: '/getcap'
    CommandLine|contains: ' -r '
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.discovery
  • attack.t1083

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/process_creation/proc_creation_lnx_capa_discovery.yml

Sources and licences

  • SigmaHQ

    "Capabilities Discovery - Linux" by Nasreddine Bencherchali (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/linux/process_creation/proc_creation_lnx_capa_discovery.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: Capabilities Discovery - Linux",
entity page, dataset version ref-310261438b0f, updated 2026-01-24T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/d8d97d51-122d-4cdd-9e2f-01b4b4933530 (accessed 2026-11-03).
Underlying source: SigmaHQ rule d8d97d51-122d-4cdd-9e2f-01b4b4933530, 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.