mirror of
https://github.com/splunk/security_content
synced 2026-06-08 17:32:49 +00:00
tccontre
72 lines
2.8 KiB
YAML
72 lines
2.8 KiB
YAML
name: Sdelete Application Execution
|
|
id: 31702fc0-2682-11ec-85c3-acde48001122
|
|
version: 1
|
|
date: '2021-10-06'
|
|
author: Teoderick Contreras, Splunk
|
|
type: TTP
|
|
datamodel:
|
|
- Endpoint
|
|
description: This analytic is to detect the execution of sdelete.exe application sysinternal
|
|
tools. This tool is one of the most use tool of malware and adversaries to remove
|
|
or clear their tracks and artifact in the targetted host. This tool is designed
|
|
to delete securely a file in file system that remove the forensic evidence on the
|
|
machine. A good TTP query to check why user execute this application which is not
|
|
a common practice.
|
|
search: '| tstats `security_content_summariesonly` values(Processes.process) as process
|
|
values(Processes.parent_process) as parent_process values(Processes.process_id)
|
|
as process_id count min(_time) as firstTime max(_time) as lastTime from datamodel=Endpoint.Processes
|
|
where `process_sdelete` by Processes.process_name Processes.original_file_name
|
|
Processes.dest Processes.user Processes.parent_process_name Processes.parent_process
|
|
| `drop_dm_object_name(Processes)` | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)`
|
|
| `sdelete_application_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: user may execute and use this application
|
|
references:
|
|
- https://app.any.run/tasks/956f50be-2c13-465a-ac00-6224c14c5f89/
|
|
tags:
|
|
analytic_story:
|
|
- Masquerading - Rename System Utilities
|
|
dataset:
|
|
- https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1485/sdelete/sysmon.log
|
|
kill_chain_phases:
|
|
- Exploitation
|
|
mitre_attack_id:
|
|
- T1485
|
|
- T1070.004
|
|
- T1070
|
|
product:
|
|
- Splunk Enterprise
|
|
- Splunk Enterprise Security
|
|
- Splunk Cloud
|
|
required_fields:
|
|
- _time
|
|
- Processes.dest
|
|
- Processes.user
|
|
- Processes.parent_process_name #parent process name
|
|
- Processes.parent_process #parent cmdline
|
|
- Processes.original_file_name
|
|
- Processes.process_name #process name
|
|
- Processes.process #process cmdline
|
|
- Processes.process_id
|
|
- Processes.parent_process_path
|
|
- Processes.process_path
|
|
- Processes.parent_process_id
|
|
security_domain: endpoint
|
|
impact: 70
|
|
confidence: 70
|
|
risk_score: 49
|
|
context:
|
|
- Source:Endpoint
|
|
- Stage:Execution
|
|
message: sdelete process $process_name$ executed in $dest$
|
|
observable:
|
|
- name: dest
|
|
type: Endpoint
|
|
role:
|
|
- Victim
|
|
- name: user
|
|
type: User
|
|
role:
|
|
- Victim
|
|
automated_detection_testing: passed
|