Justin Ibarra
97ee8cc9ac
* Refresh beats and ecs schemas and default to use latest to validate * remove incorrect ecs_version from zoom rule * remove stale ecs_version from rules
36 lines
1.2 KiB
TOML
36 lines
1.2 KiB
TOML
[metadata]
|
|
creation_date = "2020/02/18"
|
|
maturity = "production"
|
|
updated_date = "2020/11/03"
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = """
|
|
The Linux mknod program is sometimes used in the command payload of a remote command injection (RCI) and other exploits.
|
|
It is used to export a command shell when the traditional version of netcat is not available to the payload.
|
|
"""
|
|
false_positives = [
|
|
"""
|
|
Mknod is a Linux system program. Some normal use of this program, at varying levels of frequency, may originate from
|
|
scripts, automation tools, and frameworks. Usage by web servers is more likely to be suspicious.
|
|
""",
|
|
]
|
|
from = "now-9m"
|
|
index = ["auditbeat-*", "logs-endpoint.events.*"]
|
|
language = "kuery"
|
|
license = "Elastic License"
|
|
name = "Mknod Process Activity"
|
|
references = [
|
|
"https://web.archive.org/web/20191218024607/https://pen-testing.sans.org/blog/2013/05/06/netcat-without-e-no-problem/",
|
|
]
|
|
risk_score = 21
|
|
rule_id = "61c31c14-507f-4627-8c31-072556b89a9c"
|
|
severity = "low"
|
|
tags = ["Elastic", "Host", "Linux", "Threat Detection"]
|
|
type = "query"
|
|
|
|
query = '''
|
|
event.category:process and event.type:(start or process_started) and process.name:mknod
|
|
'''
|
|
|