SigmaHQ/rules/linux/lnx_security_software_discovery.yml

31 lines
1.1 KiB
YAML

title: Security Software Discovery
id: c9d8b7fd-78e4-44fe-88f6-599135d46d60
status: experimental
description: Detects usage of system utilities (only grep for now) to discover security software discovery
author: Daniil Yugoslavskiy, oscd.community
date: 2020/10/19
references:
- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1518.001/T1518.001.md
logsource:
category: process_creation
product: linux
detection:
grep_execution:
Image|endswith: '/grep'
security_services_and_processes:
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: grep_execution and security_services_and_processes
falsepositives:
- Legitimate activities
level: low
tags:
- attack.discovery
- attack.t1518.001