mirror of
https://github.com/splunk/security_content
synced 2026-06-08 17:32:49 +00:00
root
79 lines
2.8 KiB
YAML
79 lines
2.8 KiB
YAML
name: Windows Remote Service Rdpwinst Tool Execution
|
|
id: c8127f87-c7c9-4036-89ed-8fe4b30e678c
|
|
version: 1
|
|
date: '2022-06-24'
|
|
author: Teoderick Contreras, Splunk
|
|
type: TTP
|
|
datamodel:
|
|
- Endpoint
|
|
description: The following analytic identifies RDPWInst.exe tool, which is a RDP wrapper
|
|
library tool designed to enable remote desktop host support and concurrent RDP session
|
|
on reduced functionality system. Unfortunately, this open project was abused by
|
|
adversaries to enable RDP connection to the targeted host for remote access and
|
|
potentially be for lateral movement.
|
|
search: '| tstats `security_content_summariesonly` values(Processes.process) as process
|
|
min(_time) as firstTime max(_time) as lastTime from datamodel=Endpoint.Processes
|
|
where (Processes.process_name="RDPWInst.exe" OR Processes.original_file_name="RDPWInst.exe")
|
|
AND Processes.process IN ("* -i*", "* -s*", "* -o*", "* -w*", "* -r*") by Processes.dest
|
|
Processes.user Processes.parent_process Processes.process_name Processes.original_file_name
|
|
Processes.process Processes.process_id Processes.parent_process_id | `drop_dm_object_name(Processes)`
|
|
| `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)` | `windows_remote_service_rdpwinst_tool_execution_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: This tool was designed for home usage and not commonly seen
|
|
in production environment. Filter as needed.
|
|
references:
|
|
- https://app.any.run/tasks/a6f2ffe2-e6e2-4396-ae2e-04ea0143f2d8/
|
|
tags:
|
|
analytic_story:
|
|
- Azorult
|
|
asset_type: Endpoint
|
|
cis20:
|
|
- CIS 3
|
|
- CIS 5
|
|
- CIS 16
|
|
confidence: 90
|
|
context:
|
|
- Source:Endpoint
|
|
- Stage:Defense Evasion
|
|
dataset:
|
|
- https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/malware/azorult/sysmon.log
|
|
impact: 90
|
|
kill_chain_phases:
|
|
- Exploitation
|
|
message: Rdpwinst.exe executed on $dest$.
|
|
mitre_attack_id:
|
|
- T1021.001
|
|
- T1021
|
|
nist:
|
|
- DE.CM
|
|
observable:
|
|
- name: dest
|
|
type: Endpoint
|
|
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: 81
|
|
security_domain: endpoint
|
|
supported_tas:
|
|
- Splunk_TA_microsoft_sysmon
|