Possible Security Software Enumeration - Linux (via process_creation)

title: Possible Security Software Enumeration - Linux (via process_creation)
id: c0989bd9-98d9-5225-9f66-bf08f7306733
status: stable
description: This rule detects use of system utilities (only grep and egrep for now) to discover security software discovery
references:
    - https://attack.mitre.org/techniques/T1518/001/
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1518.001/T1518.001.md
author: Huntrule Team
date: 2026-06-07
tags:
    - attack.discovery
    - attack.t1518.001
logsource:
    category: process_creation
    product: linux
detection:
    selection:
        Image|endswith:
            - '/grep'
            - '/egrep'
        CommandLine|contains:
            - 'nessusd'
            - 'td-agent'
            - 'packetbeat'
            - 'filebeat'
            - 'auditbeat'
            - 'osqueryd'
            - 'cbagentd'
            - 'falcond'
    condition: selection
falsepositives:
    - Unknown
level: low