Sigma rule: Security Software Discovery - MacOs

Rule

Title

Security Software Discovery - MacOs

Status

test

Level

medium

Author

Daniil Yugoslavskiy, oscd.community

Date

2020-10-19

Modified

2022-11-27

File

rules/macos/process_creation/proc_creation_macos_security_software_discovery.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

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

Log source

product

macos

category

process_creation

Detection

image:
    Image: '/usr/bin/grep'
selection_cli_1:
    CommandLine|contains:
        - 'nessusd'        # nessus vulnerability scanner
        - 'santad'         # google santa
        - 'CbDefense'      # carbon black
        - 'falcond'        # crowdstrike falcon
        - 'td-agent'       # fluentd log shipper
        - 'packetbeat'     # elastic network logger/shipper
        - 'filebeat'       # elastic log file shipper
        - 'auditbeat'      # elastic auditing agent/log shipper
        - 'osqueryd'       # facebook osquery
        - 'BlockBlock'     # Objective-See persistence locations watcher/blocker
        - 'LuLu'           # Objective-See firewall management utility
selection_cli_2: # Objective Development Software firewall management utility
    CommandLine|contains|all:
        - 'Little'
        - 'Snitch'
condition: image and 1 of selection_cli_*

False positives (as the rule lists them)

• Legitimate activities

Tags

• attack.discovery
• attack.t1518.001

MITRE ATT&CK ids this rule names

• T1518.001

References

• https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1518.001/T1518.001.md

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/macos/process_creation/proc_creation_macos_security_software_discovery.yml