mirror of
https://github.com/splunk/security_content
synced 2026-06-08 17:32:49 +00:00
research bot
48 lines
1.9 KiB
YAML
48 lines
1.9 KiB
YAML
name: Excessive Usage Of Taskkill
|
|
id: fe5bca48-accb-11eb-a67c-acde48001122
|
|
version: 1
|
|
date: '2021-05-04'
|
|
author: Teoderick Contreras, Splunk
|
|
type: batch
|
|
datamodel:
|
|
- Endpoint
|
|
description: This analytic identifies excessive usage of `taskkill.exe` application.
|
|
This application is commonly used by adversaries to evade detections by killing
|
|
security product processes or even other processes to evade detection.
|
|
search: '| tstats `security_content_summariesonly` values(Processes.process) as process
|
|
values(Processes.process_id) as process_id count min(_time) as firstTime max(_time)
|
|
as lastTime from datamodel=Endpoint.Processes where Processes.process_name = "taskkill.exe" by
|
|
Processes.parent_process_name Processes.process_name Processes.dest Processes.user
|
|
_time span=1m | where count >=10 | `drop_dm_object_name(Processes)` | `security_content_ctime(firstTime)`
|
|
| `security_content_ctime(lastTime)` | `excessive_usage_of_taskkill_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. Tune and filter known instances where renamed taskkill.exe may be used.
|
|
known_false_positives: Unknown. Filter as needed.
|
|
references:
|
|
- https://thedfirreport.com/2020/04/20/sqlserver-or-the-miner-in-the-basement/
|
|
tags:
|
|
analytic_story:
|
|
- XMRig
|
|
automated_detection_testing: passed
|
|
dataset:
|
|
- https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/malware/xmrig_miner/windows-sysmon.log
|
|
kill_chain_phases:
|
|
- Exploitation
|
|
mitre_attack_id:
|
|
- T1562.001
|
|
product:
|
|
- Splunk Enterprise
|
|
- Splunk Enterprise Security
|
|
- Splunk Cloud
|
|
required_fields:
|
|
- _time
|
|
- Processes.parent_process_name
|
|
- Processes.process_name
|
|
- Processes.dest
|
|
- Processes.user
|
|
- Processes.process
|
|
- Processes.process_id
|
|
security_domain: endpoint
|