rules/linux/process_creation/lnx_system_network_discovery.yml

title: System Network Discovery - Linux
id: e7bd1cfa-b446-4c88-8afb-403bcd79e3fa
status: test
description: Detects enumeration of local network configuration
author: Ömer Günal and remotephone, oscd.community
references:
  - https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1016/T1016.md
date: 2020/10/06
modified: 2021/11/27
logsource:
  category: process_creation
  product: linux
detection:
  selection1:
    Image|endswith:
      - '/firewall-cmd'
      - '/ufw'
      - '/iptables'
      - '/netstat'
      - '/ss'
      - '/ip'
      - '/ifconfig'
      - '/systemd-resolve'
      - '/route'
  selection2:
    CommandLine|contains: '/etc/resolv.conf'
  condition: selection1 or selection2
falsepositives:
  - Legitimate administration activities
level: informational
tags:
  - attack.discovery
  - attack.t1016
updating files to cover broader network discovery logic, renaming alert, adding recommended changes 2020-10-13 00:39:53 -05:00			`title: System Network Discovery - Linux`
updating to select commandline arguments correctly for macos rule, and cleaning up description across both rules 2020-10-13 22:09:37 -05:00			`id: e7bd1cfa-b446-4c88-8afb-403bcd79e3fa`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`status: test`
updating to select commandline arguments correctly for macos rule, and cleaning up description across both rules 2020-10-13 22:09:37 -05:00			`description: Detects enumeration of local network configuration`
Updated author section 2020-10-16 22:02:58 -05:00			`author: Ömer Günal and remotephone, oscd.community`
change new lines to LF instead of CLRF 2020-10-07 23:02:03 -05:00			`references:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1016/T1016.md`
			`date: 2020/10/06`
			`modified: 2021/11/27`
change new lines to LF instead of CLRF 2020-10-07 23:02:03 -05:00			`logsource:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`category: process_creation`
			`product: linux`
change new lines to LF instead of CLRF 2020-10-07 23:02:03 -05:00			`detection:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`selection1:`
			`Image\|endswith:`
			`- '/firewall-cmd'`
			`- '/ufw'`
			`- '/iptables'`
			`- '/netstat'`
			`- '/ss'`
			`- '/ip'`
			`- '/ifconfig'`
			`- '/systemd-resolve'`
			`- '/route'`
			`selection2:`
			`CommandLine\|contains: '/etc/resolv.conf'`
			`condition: selection1 or selection2`
change new lines to LF instead of CLRF 2020-10-07 23:02:03 -05:00			`falsepositives:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`- Legitimate administration activities`
Fixes and improvements 2021-04-03 00:00:43 +02:00			`level: informational`
change new lines to LF instead of CLRF 2020-10-07 23:02:03 -05:00			`tags:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`- attack.discovery`
			`- attack.t1016`