mirror of
https://github.com/splunk/security_content
synced 2026-06-08 17:32:49 +00:00
Patrick Bareiss
108 lines
3.4 KiB
YAML
108 lines
3.4 KiB
YAML
asset_type: Endpoint
|
|
confidence: medium
|
|
creation_date: '2018-10-23'
|
|
data_metadata:
|
|
data_models:
|
|
- Endpoint
|
|
data_source:
|
|
- Endpoint Intel
|
|
providing_technologies:
|
|
- Carbon Black Response
|
|
- Sysmon
|
|
- Tanium
|
|
- Ziften
|
|
description: This search looks for scripts launched via WMI.
|
|
detect:
|
|
splunk:
|
|
correlation_rule:
|
|
notable:
|
|
nes_fields: dest, user, process
|
|
rule_description: This search looks for scrcons.exe, which indicates that
|
|
a script was launched via WMI.
|
|
rule_title: Script execution via WMI on $dest$
|
|
risk:
|
|
risk_object: dest
|
|
risk_object_type:
|
|
- system
|
|
risk_score: 70
|
|
schedule:
|
|
cron_schedule: 0 * * * *
|
|
earliest_time: -70m@m
|
|
latest_time: -10m@m
|
|
search: '| tstats `summariesonly` count values(Processes.process) as process
|
|
min(_time) as firstTime max(_time) as lastTime FROM datamodel=Endpoint.Processes
|
|
where Processes.process_name = "scrcons.exe" by Processes.user Processes.dest
|
|
Processes.process_name | `drop_dm_object_name("Processes")` | `ctime(firstTime)`|
|
|
`ctime(lastTime)`'
|
|
suppress:
|
|
suppress_fields: dest,process
|
|
suppress_period: 28800s
|
|
eli5: Attackers are increasingly abusing Windows Management Infrastructure for stealth,
|
|
persistence, lateral movement, or just to leverage its functionality. This search
|
|
looks for scripts launched via WMI, either remotely or locally, by looking for the
|
|
execution of scrcons.exe, which is the scripting host used by WMI, similar to wscript
|
|
or cscript.
|
|
entities:
|
|
- dest
|
|
how_to_implement: You must be ingesting endpoint data that tracks process activity,
|
|
including parent-child relationships from your endpoints to populate the Endpoint
|
|
data model in the Processes node. The command-line arguments are mapped to the "process"
|
|
field in the Endpoint data model.
|
|
id: aa73f80d-d728-4077-b226-81ea0c8be589
|
|
investigations:
|
|
- id: 155e0571-7db6-42f2-aa62-9a3a4cf35c94
|
|
name: Get Sysmon WMI Activity for Host
|
|
type: splunk
|
|
- id: bc91a8cf-35e7-4bb2-8140-e756cc06fd76
|
|
name: Get Authentication Logs For Endpoint
|
|
type: splunk
|
|
- id: fdcfb369-1725-4c24-824a-22972d7f0d55
|
|
name: Get Risk Modifiers For User
|
|
type: splunk
|
|
- id: bc91a8cf-35e7-4bb2-8140-e756cc06fd71
|
|
name: Get Process Info
|
|
type: splunk
|
|
- id: 3d6c3213-5fff-4a1e-b57d-b24c262171e7
|
|
name: Get Notable History
|
|
type: splunk
|
|
- id: f3fb4d1b-5f33-4b01-b541-c7af9534c242
|
|
name: Get Notable Info
|
|
type: splunk
|
|
- id: fdcfb369-1725-4c24-824a-22972d7f0d65
|
|
name: Get Risk Modifiers For Endpoint
|
|
type: splunk
|
|
- id: bc91a8cf-35e7-4bb2-8140-e756cc06fd74
|
|
name: Get User Information from Identity Table
|
|
type: splunk
|
|
known_false_positives: Although unlikely, administrators may use wmi to launch scripts
|
|
for legitimate purposes.
|
|
maintainers:
|
|
- company: Splunk
|
|
email: rvaldez@splunk.com
|
|
name: Rico Valdez
|
|
mappings:
|
|
cis20:
|
|
- CIS 3
|
|
- CIS 5
|
|
kill_chain_phases:
|
|
- Actions on Objectives
|
|
mitre_attack:
|
|
- Execution
|
|
- Windows Management Instrumentation
|
|
nist:
|
|
- PR.PT
|
|
- PR.AT
|
|
- PR.AC
|
|
- PR.IP
|
|
modification_date: '2019-03-01'
|
|
name: Script Execution via WMI
|
|
original_authors:
|
|
- company: Splunk
|
|
email: rvaldez@splunk.com
|
|
name: Rico Valdez
|
|
references: []
|
|
security_domain: endpoint
|
|
spec_version: 2
|
|
type: splunk
|
|
version: '2.0'
|