create_remote_thread_in_shell_application.yml

name: Create Remote Thread In Shell Application
id: 10399c1e-f51e-11eb-b920-acde48001122
version: 1
date: '2021-08-04'
author: Teoderick Contreras, Splunk
status: production
type: TTP
description: This search is to detect suspicious process injection in command shell.
  This technique was seen in IcedID where it execute cmd.exe process to inject its
  shellcode as part of its execution as banking trojan. It is really uncommon to have
  a create remote thread execution in the following application.
data_source:
- Sysmon Event ID 8
search: '`sysmon` EventCode=8 TargetImage IN ("*\\cmd.exe", "*\\powershell*") | stats
  count min(_time) as firstTime max(_time) as lastTime by  TargetImage TargetProcessId
  SourceProcessId  EventCode StartAddress SourceImage dest | `security_content_ctime(firstTime)`
  | `security_content_ctime(lastTime)` | `create_remote_thread_in_shell_application_filter`'
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: unknown
references:
- https://thedfirreport.com/2021/07/19/icedid-and-cobalt-strike-vs-antivirus/
tags:
  analytic_story:
  - IcedID
  - Qakbot
  - Warzone RAT
  asset_type: Endpoint
  confidence: 100
  impact: 70
  message: process $SourceImage$ create a remote thread to shell app process $TargetImage$
    in host $dest$
  mitre_attack_id:
  - T1055
  observable:
  - name: dest
    type: Hostname
    role:
    - Victim
  - name: SourceImage
    type: Process
    role:
    - Attacker
  product:
  - Splunk Enterprise
  - Splunk Enterprise Security
  - Splunk Cloud
  required_fields:
  - _time
  - SourceImage
  - TargetImage
  - TargetProcessId
  - SourceProcessId
  - StartAddress
  - EventCode
  - dest
  risk_score: 70
  security_domain: endpoint
tests:
- name: True Positive Test
  attack_data:
  - data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/malware/icedid/simulated_icedid/windows-sysmon.log
    source: XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
    sourcetype: xmlwineventlog