mirror of
https://github.com/splunk/security_content
synced 2026-06-08 17:32:49 +00:00
Patrick Bareiss
39 lines
1.6 KiB
YAML
39 lines
1.6 KiB
YAML
name: WMI Temporary Event Subscription
|
|
id: 38cbd42c-1098-41bb-99cf-9d6d2b296d83
|
|
version: 1
|
|
date: '2018-10-23'
|
|
description: This search looks for the creation of WMI temporary event subscriptions.
|
|
how_to_implement: To successfully implement this search, you must be ingesting the
|
|
Windows WMI activity logs. This can be done by adding a stanza to inputs.conf on
|
|
the system generating logs with a title of [WinEventLog://Microsoft-Windows-WMI-Activity/Operational].
|
|
type: ESCU
|
|
references: []
|
|
author: Rico Valdez, Splunk
|
|
search: '`wmi` EventCode=5860 Temporary | rex field=Message "NotificationQuery =\s+(?<query>[^;|^$]+)"
|
|
| search query!="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName = ''wsmprovhost.exe''"
|
|
AND query!="SELECT * FROM __InstanceOperationEvent WHERE TargetInstance ISA ''AntiVirusProduct''
|
|
OR TargetInstance ISA ''FirewallProduct'' OR TargetInstance ISA ''AntiSpywareProduct''"
|
|
| stats count min(_time) as firstTime max(_time) as lastTime by ComputerName, query |
|
|
`security_content_ctime(firstTime)`| `security_content_ctime(lastTime)` | `wmi_temporary_event_subscription_filter`'
|
|
known_false_positives: Some software may create WMI temporary event subscriptions
|
|
for various purposes. The included search contains an exception for two of these
|
|
that occur by default on Windows 10 systems. You may need to modify the search to
|
|
create exceptions for other legitimate events.
|
|
tags:
|
|
analytics_story:
|
|
- Suspicious WMI Use
|
|
mitre_attack_id:
|
|
- T1047
|
|
kill_chain_phases:
|
|
- Actions on Objectives
|
|
cis20:
|
|
- CIS 3
|
|
- CIS 5
|
|
nist:
|
|
- PR.PT
|
|
- PR.AT
|
|
- PR.AC
|
|
- PR.IP
|
|
security_domain: endpoint
|
|
asset_type: Endpoint
|