splunk-security_content/detections/processes_created_by_netsh.yml

name: Processes created by netsh
id: b89919ed-fe5f-492c-b139-95dbb162041e
version: 3
date: '2020-03-02'
description: This search looks for processes launching netsh.exe to execute various
  commands via the netsh command-line utility. Netsh.exe is a command-line scripting
  utility that allows you to, either locally or remotely, display or modify the network
  configuration of a computer that is currently running. Netsh can be used as a persistence
  proxy technique to execute a helper .dll when netsh.exe is executed. In this search,
  we are looking for processes spawned by netsh.exe that are executing commands via
  the command line.
how_to_implement: To successfully implement this search, you must be ingesting logs
  with the process name, command-line arguments, and parent processes from your endpoints.
  If you are using Sysmon, you must have at least version 6.0.4 of the Sysmon TA.
type: ESCU
references: []
author: Bhavin Patel, Splunk
search: '| tstats `security_content_summariesonly` count values(Processes.process)
  as process min(_time) as firstTime max(_time) as lastTime from datamodel=Endpoint.Processes
  where Processes.parent_process="*C:\\Windows\\System32\\netsh.exe*" by Processes.user
  Processes.dest Processes.parent_process Processes.parent_process_name Processes.process_name
  | `drop_dm_object_name("Processes")` | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)`
  | `processes_created_by_netsh_filter`'
known_false_positives: It is unusual for netsh.exe to have any child processes in
  most environments. It makes sense to investigate the child process and verify whether
  the process spawned is legitimate.
tags:
  analytics_story:
  - Netsh Abuse
  mitre_attack_id:
  - T1059
  kill_chain_phases:
  - Actions on Objectives
  cis20:
  - CIS 8
  nist:
  - PR.PT
  - DE.CM
  security_domain: endpoint
  asset_type: Endpoint