Sigma rule: Security Software Discovery - Linux

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-93dadbd75890, updated 2022-11-27T00:00:00.000Z.

Rule

Title
Security Software Discovery - Linux
Status
test
Level
low
Author
Daniil Yugoslavskiy, oscd.community
Date
2020-10-19
Modified
2022-11-27
File
rules/linux/process_creation/proc_creation_lnx_security_software_discovery.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects usage of system utilities (only grep and egrep for now) to discover security software discovery

Log source

product
linux
category
process_creation

Detection

selection:
    Image|endswith:
        # You can add more grep variations such as fgrep, rgrep...etc
        - '/grep'
        - '/egrep'
    CommandLine|contains:
        - 'nessusd'        # nessus vulnerability scanner
        - 'td-agent'       # fluentd log shipper
        - 'packetbeat'     # elastic network logger/shipper
        - 'filebeat'       # elastic log file shipper
        - 'auditbeat'      # elastic auditing agent/log shipper
        - 'osqueryd'       # facebook osquery
        - 'cbagentd'       # carbon black
        - 'falcond'        # crowdstrike falcon
condition: selection

False positives (as the rule lists them)

  • Legitimate activities

Tags

  • attack.discovery
  • attack.t1518.001

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_security_software_discovery.yml

Sources and licences

  • SigmaHQ

    "Security Software Discovery - Linux" by Daniil Yugoslavskiy, oscd.community (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/linux/process_creation/proc_creation_lnx_security_software_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: Security Software Discovery - Linux",
entity page, dataset version ref-93dadbd75890, updated 2022-11-27T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/c9d8b7fd-78e4-44fe-88f6-599135d46d60 (accessed 2026-11-03).
Underlying source: SigmaHQ rule c9d8b7fd-78e4-44fe-88f6-599135d46d60, 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.