SigmaHQ/rules/windows/sysmon/sysmon_susp_recon_activity.yml
2017-09-12 23:54:04 +02:00

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YAML

title: Suspicious Reconnaissance Activity
status: experimental
description: Detects suspicious command line activity on Windows systems
author: Florian Roth
logsource:
product: windows
service: sysmon
detection:
selection:
EventID: 1
CommandLine:
- 'net group "domain admins" /domain'
- 'net localgroup administrators'
condition: selection
fields:
- CommandLine
- ParentCommandLine
falsepositives:
- Inventory tool runs
- Penetration tests
- Administrative activity
analysis:
recommendation: Check if the user that executed the commands is suspicious (e.g. service accounts, LOCAL_SYSTEM)
level: medium