name: Process Kill Base On File Path
id: 5ffaa42c-acdb-11eb-9ad3-acde48001122
version: 2
date: '2021-05-04'
author: Teoderick Contreras, Splunk
type: TTP
datamodel:
- Endpoint
description: The following analytic identifies the use of `wmic.exe` using `delete`
  to remove a executable path. This is typically ran via a batch file during beginning
  stages of an adversary setting up for mining on an endpoint.
search: '| tstats `security_content_summariesonly` values(Processes.process) as process
  values(Processes.process_id) as process_id count min(_time) as firstTime max(_time)
  as lastTime  from datamodel=Endpoint.Processes where `process_wmic` AND Processes.process="*process*"
  AND Processes.process="*executablepath*" AND Processes.process="*delete*" by  Processes.parent_process_name
  Processes.process_name Processes.original_file_name Processes.dest Processes.user
  | `drop_dm_object_name(Processes)` | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)`
  | `process_kill_base_on_file_path_filter`'
how_to_implement: To successfully implement this search you need to be ingesting information
  on process that include the name of the process responsible for the changes from
  your endpoints into the `Endpoint` datamodel in the `Processes` node. In addition,
  confirm the latest CIM App 4.20 or higher is installed and the latest TA for the
  endpoint product.
known_false_positives: Unknown.
references:
- https://thedfirreport.com/2020/04/20/sqlserver-or-the-miner-in-the-basement/
tags:
  analytic_story:
  - XMRig
  confidence: 80
  context:
  - Source:Endpoint
  - Stage:Defense Evasion
  dataset:
  - https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/malware/xmrig_miner/windows-sysmon.log
  impact: 70
  kill_chain_phases:
  - Exploitation
  message: A process $process_name$ attempt to kill process by its file path using
    commandline $process$ in host $dest$
  mitre_attack_id:
  - T1562.001
  - T1562
  observable:
  - name: dest
    type: Hostname
    role:
    - Victim
  - name: user
    type: User
    role:
    - Victim
  product:
  - Splunk Enterprise
  - Splunk Enterprise Security
  - Splunk Cloud
  required_fields:
  - _time
  - Processes.dest
  - Processes.user
  - Processes.parent_process_name
  - Processes.parent_process
  - Processes.original_file_name
  - Processes.process_name
  - Processes.process
  - Processes.process_id
  - Processes.parent_process_path
  - Processes.process_path
  - Processes.parent_process_id
  risk_score: 56
  security_domain: endpoint
  supported_tas:
  - Splunk_TA_microsoft_sysmon
  asset_type: Endpoint