Detection rules › Sigma
Linux Recon Indicators
Detects events with patterns found in commands used for reconnaissance on linux systems
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Reconnaissance | T1592.004 Gather Victim Host Information: Client Configurations |
| Credential Access | T1552.001 Unsecured Credentials: Credentials In Files |
Event coverage
| Provider | Event |
|---|---|
| Sysmon-for-Linux | Event ID 1 |
Rule body yaml
title: Linux Recon Indicators
id: 0cf7a157-8879-41a2-8f55-388dd23746b7
status: test
description: Detects events with patterns found in commands used for reconnaissance on linux systems
references:
- https://github.com/sleventyeleven/linuxprivchecker/blob/0d701080bbf92efd464e97d71a70f97c6f2cd658/linuxprivchecker.py
author: Florian Roth (Nextron Systems)
date: 2022-06-20
tags:
- attack.reconnaissance
- attack.t1592.004
- attack.credential-access
- attack.t1552.001
logsource:
category: process_creation
product: linux
detection:
selection:
CommandLine|contains:
- ' -name .htpasswd'
- ' -perm -4000 '
condition: selection
falsepositives:
- Legitimate administration activities
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
CommandLine|contains:
- ' -name .htpasswd'
- ' -perm -4000 '
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
CommandLine | match |
|