Linux Network Service Scanning Tools Execution

Detects execution of network scanning and reconnaisance tools. These tools can be used for the enumeration of local or remote network services for example.

title: Linux Network Service Scanning Tools Execution
id: 3e102cd9-a70d-4a7a-9508-403963092f31
status: test
description: Detects execution of network scanning and reconnaisance tools. These tools can be used for the enumeration of local or remote network services for example.
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1046/T1046.md
    - https://github.com/projectdiscovery/naabu
    - https://github.com/Tib3rius/AutoRecon
author: Alejandro Ortuno, oscd.community, Georg Lauenstein (sure[secure])
date: 2020-10-21
modified: 2024-09-19
tags:
    - attack.discovery
    - attack.t1046
logsource:
    category: process_creation
    product: linux
detection:
    selection_netcat:
        Image|endswith:
            - '/nc'
            - '/ncat'
            - '/netcat'
            - '/socat'
    selection_network_scanning_tools:
        Image|endswith:
            - '/autorecon'
            - '/hping'
            - '/hping2'
            - '/hping3'
            - '/naabu'
            - '/nmap'
            - '/nping'
            - '/telnet' # could be wget, curl, ssh, many things. basically everything that is able to do network connection. consider fine tuning
            - '/zenmap'
    filter_main_netcat_listen_flag:
        CommandLine|contains:
            - ' --listen '
            - ' -l '
    condition: (selection_netcat and not filter_main_netcat_listen_flag) or selection_network_scanning_tools
falsepositives:
    - Legitimate administration activities
level: low

• T1046Network Service Discovery

• https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1046/T1046.md↗
• https://github.com/projectdiscovery/naabu↗
• https://github.com/Tib3rius/AutoRecon↗