Detection rules › Sigma
Potential Discovery Activity Using Find - Linux
Detects usage of "find" binary in a suspicious manner to perform discovery
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Discovery |
Telemetry coverage
| Platform | Record / event type |
|---|---|
| Linux | Event ID 1: Process Create |
Rule body
title: Potential Discovery Activity Using Find - Linux
id: 8344c0e5-5783-47cc-9cf9-a0f7fd03e6cf
related:
- id: 85de3a19-b675-4a51-bfc6-b11a5186c971
type: similar
status: test
description: Detects usage of "find" binary in a suspicious manner to perform discovery
references:
- https://github.com/SaiSathvik1/Linux-Privilege-Escalation-Notes
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-12-28
tags:
- attack.discovery
- attack.t1083
logsource:
category: process_creation
product: linux
detection:
selection:
Image|endswith: '/find'
CommandLine|contains:
- '-perm -4000'
- '-perm -2000'
- '-perm 0777'
- '-perm -222'
- '-perm -o w'
- '-perm -o x'
- '-perm -u=s'
- '-perm -g=s'
condition: selection
falsepositives:
- Unknown
level: medium
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
Image|endswith: '/find'
CommandLine|contains:
- '-perm -4000'
- '-perm -2000'
- '-perm 0777'
- '-perm -222'
- '-perm -o w'
- '-perm -o x'
- '-perm -u=s'
- '-perm -g=s'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
CommandLine | match |
| field:"CommandLine" kind:match |
Image | ends_with |
| field:"Image" kind:ends_with value:"/find" |