name: Windows Process With NamedPipe CommandLine
id: e64399d4-94a8-11ec-a9da-acde48001122
version: 1
date: '2022-02-23'
author: Teoderick Contreras, Splunk
status: production
type: Anomaly
description: This analytic is to look for process commandline that contains named
  pipe. This technique was seen in some adversaries, threat actor and malware like
  olympic destroyer to communicate to its other child processes after process injection
  that serve as defense evasion and privilege escalation. On the other hand this analytic
  may catch some normal process that using this technique for example browser application.
  In that scenario we include common process path we've seen during testing that cause
  false positive which is the program files. False positive may still be arise if
  the normal application is in other folder path.
data_source:
- Sysmon Event ID 1
search:
  selection1:
    CommandLine: '*\\\\.\\pipe\\*'
  condition: selection1
how_to_implement: To successfully implement this search, you need to be ingesting
  logs with the process name, parent process, and command-line executions from your
  endpoints. If you are using Sysmon, you must have at least version 6.0.4 of the
  Sysmon TA.
known_false_positives: Normal browser application may use this technique. Please update
  the filter macros to remove false positives.
references:
- https://blog.talosintelligence.com/2018/02/olympic-destroyer.html
tags:
  analytic_story:
  - Windows Defense Evasion Tactics
  asset_type: Endpoint
  confidence: 70
  impact: 70
  message: Process with named pipe in $process$ on $dest$
  mitre_attack_id:
  - T1055
  observable:
  - name: dest
    type: Endpoint
    role:
    - Victim
  product:
  - Splunk Enterprise
  - Splunk Enterprise Security
  - Splunk Cloud
  risk_score: 49
  security_domain: endpoint
tests:
- name: True Positive Test
  attack_data:
  - data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/malware/olympic_destroyer/sysmon.log
    source: XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
    sourcetype: xmlwineventlog