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
58 lines
1.6 KiB
TOML
58 lines
1.6 KiB
TOML
[metadata]
|
||
creation_date = "2020/04/23"
|
||
maturity = "production"
|
||
updated_date = "2020/11/03"
|
||
|
||
[rule]
|
||
author = ["Elastic"]
|
||
description = """
|
||
An adversary may add the setuid bit to a file or directory in order to run a file with the privileges of the owning
|
||
user. An adversary can take advantage of this to either do a shell escape or exploit a vulnerability in an application
|
||
with the setuid bit to get code running in a different user’s context. Additionally, adversaries can use this mechanism
|
||
on their own malware to make sure they're able to execute in elevated contexts in the future.
|
||
"""
|
||
from = "now-9m"
|
||
index = ["auditbeat-*", "logs-endpoint.events.*"]
|
||
language = "lucene"
|
||
license = "Elastic License"
|
||
max_signals = 33
|
||
name = "Setuid Bit Set via chmod"
|
||
risk_score = 21
|
||
rule_id = "8a1b0278-0f9a-487d-96bd-d4833298e87a"
|
||
severity = "low"
|
||
tags = ["Elastic", "Host", "Linux", "Threat Detection", "Privilege Escalation"]
|
||
type = "query"
|
||
|
||
query = '''
|
||
event.category:process AND event.type:(start or process_started) AND process.name:chmod AND
|
||
process.args:(u+s OR /4[0-9]{3}/) AND
|
||
NOT user.name:root
|
||
'''
|
||
|
||
|
||
[[rule.threat]]
|
||
framework = "MITRE ATT&CK"
|
||
[[rule.threat.technique]]
|
||
id = "T1166"
|
||
name = "Setuid and Setgid"
|
||
reference = "https://attack.mitre.org/techniques/T1166/"
|
||
|
||
|
||
[rule.threat.tactic]
|
||
id = "TA0004"
|
||
name = "Privilege Escalation"
|
||
reference = "https://attack.mitre.org/tactics/TA0004/"
|
||
[[rule.threat]]
|
||
framework = "MITRE ATT&CK"
|
||
[[rule.threat.technique]]
|
||
id = "T1166"
|
||
name = "Setuid and Setgid"
|
||
reference = "https://attack.mitre.org/techniques/T1166/"
|
||
|
||
|
||
[rule.threat.tactic]
|
||
id = "TA0003"
|
||
name = "Persistence"
|
||
reference = "https://attack.mitre.org/tactics/TA0003/"
|
||
|