Detection rules › Sigma

System Information Discovery

Status
stable
Severity
informational
Log source
product linux, category process_creation
Author
Ömer Günal, oscd.community
Source
github.com/SigmaHQ/sigma

Detects system information discovery commands

MITRE ATT&CK coverage

TacticTechniques
DiscoveryT1082 System Information Discovery

Event coverage

Rule body yaml

title: System Information Discovery
id: 42df45e7-e6e9-43b5-8f26-bec5b39cc239
status: stable
description: Detects system information discovery commands
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1082/T1082.md
author: Ömer Günal, oscd.community
date: 2020-10-08
modified: 2021-09-14
tags:
    - attack.discovery
    - attack.t1082
logsource:
    product: linux
    category: process_creation
detection:
    selection:
        Image|endswith:
            - '/uname'
            - '/hostname'
            - '/uptime'
            - '/lspci'
            - '/dmidecode'
            - '/lscpu'
            - '/lsmod'
    condition: selection
falsepositives:
    - Legitimate administration activities
level: informational

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    Image|endswith:
        - '/uname'
        - '/hostname'
        - '/uptime'
        - '/lspci'
        - '/dmidecode'
        - '/lscpu'
        - '/lsmod'

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.

FieldKindValues
Imageends_with
  • /dmidecode
  • /hostname
  • /lscpu
  • /lsmod
  • /lspci
  • /uname
  • /uptime